FerretDB

What's Changed

Embeddable package

This release switches from the zap logging package to the standard slog.
If the logger was configured by Go programs that import github.com/FerretDB/FerretDB/ferretdb package, they should configure the SLogger field instead.
Setting the old Logger field will make the program panic and make the issue immediately noticeable.

The next release will completely remove zap and rename SLogger to just Logger.

Initial OpenTelemetry tracing support

This release adds initial support for sending OpenTelemetry traces to the OTLP endpoint.
The set of spans and their attributes is not stable yet and will change over time.

All improvements in observability in this release (OpenTelemetry traces, Kubernetes probes, debug archive)
are documented there.

Experimental Systemd configuration in .deb and .rpm packages

This release adds initial unit files for systemd that auto-start FerretDB.
They are likely to change in the future in incompatible ways; for example, we may switch to using a non-root user.

New Features 🎉

• Add Kubernetes liveness probe by @noisersup in https://github.com/FerretDB/FerretDB/pull/4378
• Add Kubernetes readiness probe by @noisersup in https://github.com/FerretDB/FerretDB/pull/4426
• Implement Docker healthcheck by @noisersup in https://github.com/FerretDB/FerretDB/pull/4364
• Add OpenTelemetry traces and spans by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4477
• Send OpenTelemetry traces and spans to OTLP endpoint by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4484
• Implement /debug/archive handler by @sachinpuranik in https://github.com/FerretDB/FerretDB/pull/3895
• Provide systemd unit file in .deb and .rpm packages by @noisersup in https://github.com/FerretDB/FerretDB/pull/4478

Enhancements 🛠

• Improve support for named loggers by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4432

Documentation 📄

• Document Kubernetes probes by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4424
• Refactor and document /debug/archive handler by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4485
• Document logging by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4436
• Add release blog post for FerretDB v.1.22.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/4401
• Add blog post on running FerretDB and CloudNativePG on Kubernetes by @Fashander in https://github.com/FerretDB/FerretDB/pull/4377
• Add blogpost on "monitoring FerretDB performance using Coroot" by @Fashander in https://github.com/FerretDB/FerretDB/pull/4279
• Crush .png images by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4441
• Remove broken links by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4433

Other Changes 🤖

• Replace deprecated syntax in Dockerfiles by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4397
• Update comments about interfaces by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4405
• Check database name for authentication by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4402
• Refactor runnables by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4404
• Add tests for ctxutil.Sigterm by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4406
• Setup OpenTelemetry exporter for FerretDB by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/4380
• Extract types and zap code into separate files by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4408
• Bump Go and deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4416
• Implement Kubernetes startup probe by @noisersup in https://github.com/FerretDB/FerretDB/pull/4399
• Disable OTEL in tests where collection name might have non-UTF-8 symbols by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/4423
• Stop Otel exporter gracefully in envtool by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4425
• Include OpReply error handling by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4420
• Test authSource by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4407
• Return connectionStatus command db field by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4419
• Implement checkswitch to handle regular switches by @PaveenV in https://github.com/FerretDB/FerretDB/pull/4381
• Cleanup checkswitch handling by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4434
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4446
• Ignore $readPreferences for insert by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4440
• Readiness probe cleanup by @noisersup in https://github.com/FerretDB/FerretDB/pull/4447
• Update linters configuration by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4451
• Add support for named slog loggers by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4435
• Increase setup timeout in tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4454
• Port pgx logger by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4450
• Handle authSource in low level driver by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4449
• Use single definition of order for checkswitch by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4452
• Clarify the meaning of the passed context by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4455
• Remove FuncCall by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4476
• Use slog in clientconn package by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4457
• Use slog in postgresql backend by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4466
• Use slog in sqlite backend by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4467
• Use slog in mysql and hana backends by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4463
• Use slog in oplog and cursor packages by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4471
• Use slog in otel by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4474
• Use slog in debug package by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4473
• Use slog in integration tests by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4481
• Use slog in main.go and embedded ferretdb package by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4462
• Use slog in fsql by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4464
• Use slog in handler by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4470
• Use slog in envtool by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4480
• Implement slog.LogValuer interface for types package by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4479
• Drop old dependency by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4486
• Cleanup logging by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4489

New Contributors

• @PaveenV made their first contribution in https://github.com/FerretDB/FerretDB/pull/4381

All closed issues and pull requests.
All commits.

What's Changed

Docker images changes

Production Docker images now use a non-root user with UID 1000 and GID 1000.

New Features 🎉

• Make maximum document size configurable by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4294
• Enable initial user setup for new authentication by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4310

Fixed Bugs 🐛

• Fix TCP port for debug handler in Docker images by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4218
• Fix embedded package panic by @noisersup in https://github.com/FerretDB/FerretDB/pull/4278

Enhancements 🛠

• Use non-privileged scratch for production Docker images by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/4211
• Improve error message for state.json by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4251
• Sort new fields in lexicographic order during update by @wazir-ahmed in https://github.com/FerretDB/FerretDB/pull/4223

Documentation 📄

• Add blog post for FerretDB v1.21 release by @Fashander in https://github.com/FerretDB/FerretDB/pull/4202
• Add blog post for Openziti by @Fashander in https://github.com/FerretDB/FerretDB/pull/4194
• Fix broken code blocks in documentation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4239
• Add KubeDB blogpost on deploying FerretDB on Kubernetes by @Fashander in https://github.com/FerretDB/FerretDB/pull/4253
• Add blog post about deploying FerretDB on Taikun CloudWorks by @Fashander in https://github.com/FerretDB/FerretDB/pull/4297
• Update example in documentation by @nullniverse in https://github.com/FerretDB/FerretDB/pull/4305
• Add blog post on Adding MongoDB compatibility to Aiven for PostgreSQL by @Fashander in https://github.com/FerretDB/FerretDB/pull/4349
• Add restart: on-failure to all containers by @pravi in https://github.com/FerretDB/FerretDB/pull/4309

Other Changes 🤖

• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4201
• Make our own low-level driver for testing by @noisersup in https://github.com/FerretDB/FerretDB/pull/4193
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4238
• Fix some comments by @deferdeter in https://github.com/FerretDB/FerretDB/pull/4237
• Add dummy setup flags by @b1ron in https://github.com/FerretDB/FerretDB/pull/4247
• Fix some comments by @dockercui in https://github.com/FerretDB/FerretDB/pull/4257
• Remove old BSON implementation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4262
• Port BSON changes by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4263
• Move tools cache directory by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4265
• Use more shards on CI by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4266
• Bump Go to 1.22.3 and deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4272
• Update linters configuration by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4277
• Fix env-data by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4289
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4302
• Port some changes from v2 by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4307
• Extract user creation and move to backends package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4311
• Populate env-data for running FerretDB by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4319
• Fix task docker-local command by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4363
• Add stub for the Docker healthcheck by @noisersup in https://github.com/FerretDB/FerretDB/pull/4355
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4375
• Remove PLAIN mechanism from new authentication by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4373
• Fix codecov CLI version by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4379
• Add TestMain to each integration test package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4366
• Handle supported mechanisms in hello and getParameters commands by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4368
• Remove ambiguous comment by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4382
• Revert codecov version fix by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4383
• Fix typo in migration guide by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4384
• Port wire package changes by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4386
• Port password changes by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4388
• Include SpeculativeAuthenticate changes by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4390
• Fix saslContinue prematurely returning done by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4391

New Contributors

• @deferdeter made their first contribution in https://github.com/FerretDB/FerretDB/pull/4237
• @dockercui made their first contribution in https://github.com/FerretDB/FerretDB/pull/4257
• @nullniverse made their first contribution in https://github.com/FerretDB/FerretDB/pull/4305
• @pravi made their first contribution in https://github.com/FerretDB/FerretDB/pull/4309

All closed issues and pull requests.
All commits.

New Features 🎉

• Add experimental SCRAM-SHA-1/SCRAM-SHA-256 authentication support by @henvic in https://github.com/FerretDB/FerretDB/pull/4078

Fixed Bugs 🐛

• Reorganize and fix update/upsert logic by @wazir-ahmed in https://github.com/FerretDB/FerretDB/pull/4069

Enhancements 🛠

• Improve capped collection cleanup by @wazir-ahmed in https://github.com/FerretDB/FerretDB/pull/4118
• Make batch sizes configurable by @kropidlowsky in https://github.com/FerretDB/FerretDB/pull/4149

Documentation 📄

• Fix Codapi file error by @Fashander in https://github.com/FerretDB/FerretDB/pull/4077
• Add Tembo QA blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/4081
• Update correct image link by @Fashander in https://github.com/FerretDB/FerretDB/pull/4116
• Add Pulumi blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/4102
• Add Tembo to README by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4168
• Remove some closed issues from documentation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4172

Other Changes 🤖

• Use Go 1.22 and bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4094
• Add more fields to requests and responses by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/4096
• Revert SQLite version bump by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4106
• Refactor bson2 package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4105
• Use bson2 package for wire queries and replies by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4108
• Make logger configurable in the embedded ferretdb package by @fadyat in https://github.com/FerretDB/FerretDB/pull/4028
• Fix envtool run test -run and -skip flags by @henvic in https://github.com/FerretDB/FerretDB/pull/4101
• Add MySQL backend collection by @adetunjii in https://github.com/FerretDB/FerretDB/pull/4083
• Ignore maxTimeMS argument in count, insert, update, delete by @farit2000 in https://github.com/FerretDB/FerretDB/pull/4121
• Use correct salt length by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4126
• Skip stuck tailable cursor test by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4131
• Enforce new authentication by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4075
• Replace bson with bson2 in wire by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4110
• Improve OP_MSG validity checks by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4135
• Support speculative authenticate by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4111
• Add MySQL backend by @adetunjii in https://github.com/FerretDB/FerretDB/pull/4137
• Fix saslContinue crashing due to not found authentication conversation by @henvic in https://github.com/FerretDB/FerretDB/pull/4129
• Cleanup TODO for speculative authenticate by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4143
• Fix MySQL collection stats by @adetunjii in https://github.com/FerretDB/FerretDB/pull/4145
• Use Go 1.22.1 by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4155
• Advertise SCRAM / SASL support in addition to PLAIN by @henvic in https://github.com/FerretDB/FerretDB/pull/4113
• Add linter to check truncate tag in blog posts by @sbshah97 in https://github.com/FerretDB/FerretDB/pull/4139
• Fix PLAIN mechanism authentication incorrectly working by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4163
• Improve bson2 and wire logging by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4148
• Fix logging of deeply nested documents by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4167
• Support localhost exception by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4156
• Do not use the flow style in the diff output by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4170
• Do not use fjson by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4175
• Remove fjson package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4176
• Fix speculativeAuthenticate panic on empty database by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4178
• Move old bson package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4177
• Rename bson2 to bson by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4179
• Move Docker build files by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4180
• Bump protobuf dependency to make CI happy by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4187
• Use authentication enabled docker for integration test by @chilagrow in https://github.com/FerretDB/FerretDB/pull/4160
• Bump pgx by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4190

New Contributors

• @farit2000 made their first contribution in https://github.com/FerretDB/FerretDB/pull/4121
• @sbshah97 made their first contribution in https://github.com/FerretDB/FerretDB/pull/4139

All closed issues and pull requests.
All commits.

What's Changed

Docker images changes

Production Docker images now use a non-root user with UID 1000 and GID 1000.

That change was made in v1.20.0, reverted in v1.20.1, and will be re-introduced in a future release.

Documentation 📄

• Add blog post on Ubicloud managed postgres by @Fashander in https://github.com/FerretDB/FerretDB/pull/4010
• Add release blog post for v1.19.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/4020
• Truncate release blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/4047
• Add blog post on Disaster Recovery for FerretDB with Elotl Nova by @Fashander in https://github.com/FerretDB/FerretDB/pull/4038
• Update Codapi by @Fashander in https://github.com/FerretDB/FerretDB/pull/4039
• Add blogpost on FerretDB stack on Tembo by @Fashander in https://github.com/FerretDB/FerretDB/pull/4037

Other Changes 🤖

• Add tests for new SCRAM-SHA-256 authentication support by @henvic in https://github.com/FerretDB/FerretDB/pull/4012
• Add TODO comments for logging by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4015
• Add bson2 helpers for conversions and logging by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4019
• Setup MySQL backend by @adetunjii in https://github.com/FerretDB/FerretDB/pull/4003
• Expose new authentication enabling flag by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4029
• Bump deps and speed-up checkcomments by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4030
• Display envtool run test progress with run and/or skip flags by @fadyat in https://github.com/FerretDB/FerretDB/pull/3999
• Use Ubicloud for CI runners by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4027
• Implement database.Stats for MySQL backend by @adetunjii in https://github.com/FerretDB/FerretDB/pull/4034
• Minor cleanups by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4046
• Add experimental pushdown for dot notation by @noisersup in https://github.com/FerretDB/FerretDB/pull/4049
• Bump Go to 1.21.7 by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4059
• Add utility for hashing SCRAM-SHA-256 password by @henvic in https://github.com/FerretDB/FerretDB/pull/4031
• Use rootless scratch containers for production Docker images by @ahmethakanbesel in https://github.com/FerretDB/FerretDB/pull/4004
• Prepare query statements for MySQL by @adetunjii in https://github.com/FerretDB/FerretDB/pull/4064
• Implement bson2.RawDocument checking by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4076
• Add helper for decoding document sequences by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4080
• Add SCRAM-SHA-256 authentication support by @henvic in https://github.com/FerretDB/FerretDB/pull/3989
• Remove SCRAM-SHA-256 implementation TODO links by @henvic in https://github.com/FerretDB/FerretDB/pull/4086
• Update telemetry host by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4085

New Contributors

• @ahmethakanbesel made their first contribution in https://github.com/FerretDB/FerretDB/pull/4004

All closed issues and pull requests.
All commits.

See https://github.com/FerretDB/FerretDB/releases/tag/v1.20.1

New Features 🎉

• Support creating an index on nested fields for SQLite by @fadyat in https://github.com/FerretDB/FerretDB/pull/3972

Fixed Bugs 🐛

• Fix maxTimeMS for getMore command by @noisersup in https://github.com/FerretDB/FerretDB/pull/3919
• Fix upsert with $setOnInsert operator by @wazir-ahmed in https://github.com/FerretDB/FerretDB/pull/3931
• Fix validation process for creating duplicate _id index by @kropidlowsky in https://github.com/FerretDB/FerretDB/pull/3990

Documentation 📄

• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3955
• Add documentation for oplog by @Fashander in https://github.com/FerretDB/FerretDB/pull/3960
• Fix search queries by @Fashander in https://github.com/FerretDB/FerretDB/pull/3976

Other Changes 🤖

• Fix Taskfile.yml indentation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3964
• Speed-up Docker builds by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3965
• Run more maxTimeMS tests by @noisersup in https://github.com/FerretDB/FerretDB/pull/3940
• Store passwords for PLAIN authentication mechanism by @henvic in https://github.com/FerretDB/FerretDB/pull/3928
• Use PBKDF2 for storing PLAIN passwords by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3970
• Shard extra CI configurations by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3946
• Small fixes and tweaks by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3971
• Implement updateUser command by @henvic in https://github.com/FerretDB/FerretDB/pull/3973
• Small assorted tweaks by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3979
• Add MySQL backend Registry by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3967
• Add new BSON decoding package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3905
• Refactor bson2 encoding/decoding by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3987
• Use usersInfo for createUser and dropUser integration tests by @henvic in https://github.com/FerretDB/FerretDB/pull/3980
• Improve bson2 fuzzing by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3988
• Update contributing documentation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3994
• Use ListCollection with a filter by @sachinpuranik in https://github.com/FerretDB/FerretDB/pull/3995
• Add tests for MySQL registry by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3993
• Prepare CI to having multiple main branches by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4002
• Ignore $readPreference field by @b1ron in https://github.com/FerretDB/FerretDB/pull/3996
• Hide *types.Document from wire struct fields by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4000
• Add deep bson2 decoding by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3997
• Expose raw documents in the wire package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/4011

New Contributors

• @fadyat made their first contribution in https://github.com/FerretDB/FerretDB/pull/3972

All closed issues and pull requests.
All commits.

What's Changed

Capped collections

This release adds support for capped collections. They can be created as usual using create command. Both max (maximum number of documents) and size (maximum collection size in bytes) parameters are supported.

Tailable cursors

This release adds support for tailable cursors. Both tailable and awaitData parameters are supported.

OpLog tailing

This release adds support for the basic OpLog functionality. The main supported use case is Meteor's OpLog tailing. Replication is not supported yet.

OpLog collection does not exist by default. To enable OpLog functionality, create a capped collection oplog.rs in the local database. Setting replica set name using --repl-set-name flag / FERRETDB_REPL_SET_NAME environment variable might also be needed.

New Features 🎉

• Add support for tailable cursors by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3799
• Implement awaitData tailable cursors by @noisersup in https://github.com/FerretDB/FerretDB/pull/3900
• Implement and test OpLog for update operations by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3899
• Enable OpLog and tailable cursors by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3887
• Implement createUser command by @henvic in https://github.com/FerretDB/FerretDB/pull/3848
• Implement dropUser command by @henvic in https://github.com/FerretDB/FerretDB/pull/3866
• Implement dropAllUsersFromDatabase command by @henvic in https://github.com/FerretDB/FerretDB/pull/3867
• Implement usersInfo command by @henvic in https://github.com/FerretDB/FerretDB/pull/3897

Enhancements 🛠

• Don't cleanup capped collections if there is nothing to cleanup by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3909
• Disallow maxTimeMS for non-awaitData cursors in getMore command by @noisersup in https://github.com/FerretDB/FerretDB/pull/3917
• Add the necessary for replica set fields to ismaster response by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3925

Other Changes 🤖

• Add CI configuration for Citus by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3865
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3880
• Fix tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3871
• Add MySQL backend registry by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3850
• Fix local MySQL setup by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3886
• Fix clean-up on aggregate errors by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3892
• Use dropAllUsersFromDatabase in tests by @henvic in https://github.com/FerretDB/FerretDB/pull/3891
• Add awaitData tests by @noisersup in https://github.com/FerretDB/FerretDB/pull/3872
• Add utilities for working with passwords by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3890
• Add support for --skip in envtool tests run by @KrishnaSindhur in https://github.com/FerretDB/FerretDB/pull/3805
• Small clean-ups by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3896
• Add basic SAP HANA backend by @yonarw in https://github.com/FerretDB/FerretDB/pull/3719
• Add integration tests for OpLog entries of insert and delete operations by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3862
• Add more cursor tests by @noisersup in https://github.com/FerretDB/FerretDB/pull/3893
• Refactor ConnInfo in preparation for new auth by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3901
• Add some small improvements to the linter that checks open issues by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3756
• Forbid bson.E/D/M/A, except integration tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3908
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3912
• Make AssertEqual helper handle duplicate keys by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3911
• Drop test users on cleanup by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3914
• Cleanup awaitData tailable cursor by @noisersup in https://github.com/FerretDB/FerretDB/pull/3915
• Cleanup a closed issue by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3924
• Ignore sparse index parameter for now by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3934
• Allow filtering by name in ListDatabases and ListCollections by @sachinpuranik in https://github.com/FerretDB/FerretDB/pull/3851
• Disallow native passwords for MySQL by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3937
• Fix awaitData cursor panic by @noisersup in https://github.com/FerretDB/FerretDB/pull/3935
• Use usersInfo in dropAllUsersFromDatabase tests by @henvic in https://github.com/FerretDB/FerretDB/pull/3932
• Allow Native Passwords for testcase by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3941

New Contributors

• @yonarw made their first contribution in https://github.com/FerretDB/FerretDB/pull/3719
• @sachinpuranik made their first contribution in https://github.com/FerretDB/FerretDB/pull/3851

All closed issues and pull requests.
All commits.

New Features 🎉

• Allow building without PostgreSQL or SQLite backend by @anunayasri in https://github.com/FerretDB/FerretDB/pull/3803
• Allow sorting by $natural by @noisersup in https://github.com/FerretDB/FerretDB/pull/3822
• Disallow $natural in compound sort by @noisersup in https://github.com/FerretDB/FerretDB/pull/3832
• Generate collection UUIDs by @wazir-ahmed in https://github.com/FerretDB/FerretDB/pull/3791
• Support capped collection cleanup by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3831

Fixed Bugs 🐛

• Fix listDatabases filtering when using nameOnly by @henvic in https://github.com/FerretDB/FerretDB/pull/3788

Enhancements 🛠

• Improve validate diagnostic command by @b1ron in https://github.com/FerretDB/FerretDB/pull/3804
• Add fields to listCollections.cursor response by @henvic in https://github.com/FerretDB/FerretDB/pull/3809

Documentation 📄

• Add new release FerretDB v1.16.0 blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3808
• Change release blogpost image by @Fashander in https://github.com/FerretDB/FerretDB/pull/3825
• Enable versioning on documentation by @Fashander in https://github.com/FerretDB/FerretDB/pull/3821
• Add documentation for older versions by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3834

Other Changes 🤖

• Support subdirectories for integration tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3810
• Move tests for tailbable cursors by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3811
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3817
• Refactor cursor creation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3820
• Use single flag to disable all pushdowns by @noisersup in https://github.com/FerretDB/FerretDB/pull/3793
• Add tracing to envtool tests run by @hungaikev in https://github.com/FerretDB/FerretDB/pull/3695
• Extract find helper functions by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3826
• Fix tests for MongoDB with enabled replica set by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3807
• Ignore $clusterTime by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3830
• Add MySQL backend metadata by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3828
• Clean-up tests a bit by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3835
• Allow bypassing authentication by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3840
• Add tests for tailable cursors by @noisersup in https://github.com/FerretDB/FerretDB/pull/3833
• Add missing logging parameter by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3847
• Test cross-session cursors by @noisersup in https://github.com/FerretDB/FerretDB/pull/3849
• Use MongoDB 7 by @henvic in https://github.com/FerretDB/FerretDB/pull/3824
• Simplify tailable cursor tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3854
• Add upsert tests by @wazir-ahmed in https://github.com/FerretDB/FerretDB/pull/3864
• Add cursor tests by @noisersup in https://github.com/FerretDB/FerretDB/pull/3859

New Contributors

• @wazir-ahmed made their first contribution in https://github.com/FerretDB/FerretDB/pull/3791
• @henvic made their first contribution in https://github.com/FerretDB/FerretDB/pull/3788
• @anunayasri made their first contribution in https://github.com/FerretDB/FerretDB/pull/3803
• @hungaikev made their first contribution in https://github.com/FerretDB/FerretDB/pull/3695

All closed issues and pull requests.
All commits.

Documentation 📄

• Clarify MongoDB version by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3653
• Add blogpost for release v.1.15 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3728
• Update domain name in docs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3757
• Update Docusaurus to v3 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3772
• Update domain name in more places by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3802

Other Changes 🤖

• Cleanup pushdown terminology by @noisersup in https://github.com/FerretDB/FerretDB/pull/3691
• Make RecordID a signed value by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3740
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3747
• Add MySQL into the build system by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3736
• Add MySQL backend to CI by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3751
• Remove common handlers.Interface by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3753
• Remove unsafe pushdown by @noisersup in https://github.com/FerretDB/FerretDB/pull/3752
• Support DeleteAll for capped collections by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3718
• Add startup warning for debug builds by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3735
• Move sqlite/*.go to internal/handler by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3755
• Add TODOs about pushdowns by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3762
• Clean-up old code for multiple handlers by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3763
• Add TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3764
• Move some commands from common to the handler by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3766
• Add TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3771
• Allow system. prefix for collections for now by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3775
• Setup MySQL integration tests by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3758
• Rename commonerrors and commonparams by @noisersup in https://github.com/FerretDB/FerretDB/pull/3779
• Add TLS support to proxy mode by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3783
• Provide sort to backend as the document by @noisersup in https://github.com/FerretDB/FerretDB/pull/3754
• Add stubs for authentication commands by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3776
• Move getParameter out of common package by @noisersup in https://github.com/FerretDB/FerretDB/pull/3789
• Remove commoncommands package by @noisersup in https://github.com/FerretDB/FerretDB/pull/3780
• Remove done TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3795
• Ignore go-consistent failures by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3794
• Log batches for find, aggregate, getMore by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3800
• Set GOARM explicitly by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3796

All closed issues and pull requests.
All commits.

What's Changed

Artifacts naming scheme

Our release binaries and packages now include linux as a part of their file names.
That's a preparation for providing artifacts for other OSes.

New Features 🎉

• Support showRecordId in find by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3637
• Add JSON format for logging by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3689
• Add option to disable --debug-addr by @cosmastech in https://github.com/FerretDB/FerretDB/pull/3698

Enhancements 🛠

• Allow usage without state dir by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3703
• Allow the usage of existing PostgreSQL schema by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3717
• Generate SQL queries with comments for find operations by @chumaumenze in https://github.com/FerretDB/FerretDB/pull/3697

Documentation 📄

• Mention proxy flag in docs by @Fashander in https://github.com/FerretDB/FerretDB/pull/3673
• Update README.md to include Vultr by @mrusme in https://github.com/FerretDB/FerretDB/pull/3675
• Add blog post on FastNetMon by @Fashander in https://github.com/FerretDB/FerretDB/pull/3676
• Fix content error by @Fashander in https://github.com/FerretDB/FerretDB/pull/3694
• Add blogpost for "How to Package and Deploy FerretDB with Acorn" by @Fashander in https://github.com/FerretDB/FerretDB/pull/3679
• Enable interactivity on blogpost by @Fashander in https://github.com/FerretDB/FerretDB/pull/3659
• Fix Codapi error on blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3721
• Add migration blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3709

Other Changes 🤖

• Make tests stable on CI by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3678
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3690
• Use separate PostgreSQL databases in tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3622
• Add test for tailable cursor with non-capped collection by @noisersup in https://github.com/FerretDB/FerretDB/pull/3677
• Use - in addition to the empty string by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3704
• Use the standard *mongo.WriteError type by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3705
• Fix tests for MongoDB with enabled replica set by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3604
• Handle panicking tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3711
• Make handler accept constructed backend by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3710
• Add issue tracking to checkcomments analyzer by @raeidish in https://github.com/FerretDB/FerretDB/pull/3632
• Add TODOs and fix URLs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3723
• Move diff tests from dance to integration tests by @ksankeerth in https://github.com/FerretDB/FerretDB/pull/3525
• Small assorted tweaks by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3724

New Contributors

• @mrusme made their first contribution in https://github.com/FerretDB/FerretDB/pull/3675
• @cosmastech made their first contribution in https://github.com/FerretDB/FerretDB/pull/3698
• @chumaumenze made their first contribution in https://github.com/FerretDB/FerretDB/pull/3697
• @ksankeerth made their first contribution in https://github.com/FerretDB/FerretDB/pull/3525

All closed issues and pull requests.
All commits.

What's Changed

Old PostgreSQL backend

As mentioned in the previous release changes, the old PostgreSQL backend code is completely removed.
PostgreSQL remains our main backend, just with a new code base.

New Features 🎉

• Implement compact command by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3559

Enhancements 🛠

• Optimize detection of duplicate fields by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3645
• Optimize insert performance by batching by @princejha95 in https://github.com/FerretDB/FerretDB/pull/3621

Documentation 📄

• Fix incorrect schema by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3635
• Add blogpost for FerretDB v1.13.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3639
• Add Vultr blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3646
• Update blog post on Ubuntu by @Fashander in https://github.com/FerretDB/FerretDB/pull/3658
• Add blog post on MongoDB sorting for scalar values by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3200

Other Changes 🤖

• Disallow capped collection creation when disabled by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3636
• Run backend tests for SAP HANA by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3657
• Update golangci-lint by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3651
• Remove pgdb from envtool by @ShatilKhan in https://github.com/FerretDB/FerretDB/pull/3586
• Remove old pg handler by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3661
• Add test for capped collection in aggregate $collStats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3643
• Enable GOMAXPROCS autotuning by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3105
• Add integration tests progress reporting by @rubiagatra in https://github.com/FerretDB/FerretDB/pull/3471
• Add timing information to envtool output by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3664
• Remove old SAP HANA handler by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3674
• Rename main_postgeresql to main_postgresql by @gen1us2k in https://github.com/FerretDB/FerretDB/pull/3668
• (WIP) Support create for capped collections by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3614
• (WIP) Support InsertAll and FindAll for capped collections by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3610

New Contributors

• @ShatilKhan made their first contribution in https://github.com/FerretDB/FerretDB/pull/3586
• @rubiagatra made their first contribution in https://github.com/FerretDB/FerretDB/pull/3471
• @gen1us2k made their first contribution in https://github.com/FerretDB/FerretDB/pull/3668

All closed issues and pull requests.
All commits.

What's Changed

New PostgreSQL backend

The new PostgreSQL backend is now enabled by default. You can still enable the old backend with --postgresql-old flag or FERRETDB_POSTGRESQL_OLD=true environment variable, but it will be removed in the next release.

Default SQLite directory for Docker images

Our Docker images (but not binaries and .deb / .rpm packages) now use /state directory for the SQLite backend.
That directory is also a Docker volume, so data will be preserved after the container restart by default.

arm/v7 packages

We now provide linux/arm/v7 binaries, Docker images, and .deb / .rpm packages.

New Features 🎉

• Implement pushdown for aggregate for PostgreSQL by @noisersup in https://github.com/FerretDB/FerretDB/pull/3607
• Implement sort pushdown for PostgreSQL by @noisersup in https://github.com/FerretDB/FerretDB/pull/3504
• Implement limit pushdown for PostgreSQL by @noisersup in https://github.com/FerretDB/FerretDB/pull/3580
• Implement indexSizes for collStats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3575
• Implement free storage in collStats, dbStats and aggregate $collStats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3594
• Add capped collection counts in serverStatus by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3566
• Integrate Statsviz by @codenoid in https://github.com/FerretDB/FerretDB/pull/3591

Fixed Bugs 🐛

• Fix invalid validation for _id field by @slavabobik in https://github.com/FerretDB/FerretDB/pull/3523
• Fix explain panic for non-existent collection on PostgreSQL by @noisersup in https://github.com/FerretDB/FerretDB/pull/3541

Enhancements 🛠

• Add basic logging for PostgreSQL backend by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3560
• Report actual backend name by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3570
• Improve /debug page by @codenoid in https://github.com/FerretDB/FerretDB/pull/3592
• Add filter pushdown for _id: <string> for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3599

Documentation 📄

• Add release blog post for FerretDB v1.12 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3555
• Crush images by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3561
• Change SQLite directory for Docker images by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3571
• Enable Mermaid diagrams in Docusaurus by @sid-js in https://github.com/FerretDB/FerretDB/pull/3532
• Enable linters to accept exclamation marks in headers by @chanon-mike in https://github.com/FerretDB/FerretDB/pull/3578
• Add SQLite info to glossary list by @pvinoda in https://github.com/FerretDB/FerretDB/pull/3593
• Add blog post on using Illa Cloud with FerretDB by @Fashander in https://github.com/FerretDB/FerretDB/pull/3516
• Add SQLite set up docs by @Fashander in https://github.com/FerretDB/FerretDB/pull/3568
• Add "How to Install FerretDB on Ubuntu" blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/2802
• Update ILLA blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3620
• Add links to blog by @Fashander in https://github.com/FerretDB/FerretDB/pull/3623

Other Changes 🤖

• Improve embedded package documentation by @princejha95 in https://github.com/FerretDB/FerretDB/pull/3537
• Use separate PostgreSQL databases in tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3553
• Make collStats calculate collection size accurately for PostgreSQL statistics by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3513
• Implement Collection.Compact for SQLite by @Akhil-2001 in https://github.com/FerretDB/FerretDB/pull/3536
• Use self-hosted runner for packages building by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3569
• Do not create databases during local setup by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3572
• Build arm/v7 binaries by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3577
• Add more tests and fixes for $collStats aggregation stage by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3565
• Build arm/v7 .deb and .rpm packages and binaries by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3576
• Add tests for insertion of documents with invalid _id fields by @slavabobik in https://github.com/FerretDB/FerretDB/pull/3579
• Add more data to output of collStats and dbStats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3538
• Update dataSize and dbStats integration tests by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3585
• Do not return stats in Backend.ListDatabases by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3588
• Remove old TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3595
• Use stdlib's slices package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3590
• Remove done TODO by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3596
• Check that linked issues are open by @KrishnaSindhur in https://github.com/FerretDB/FerretDB/pull/3277
• Make it easier to run old PG handler by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3598
• Implement Collection.Compact for PostgreSQL by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3603
• Do not skip invalid TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3597
• Unskip filter pushdown integration tests by @noisersup in https://github.com/FerretDB/FerretDB/pull/3605
• Call ANALYZE less often by @Aditya1404Sal in https://github.com/FerretDB/FerretDB/pull/3563
• Keep envtool's version always up-to-date by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3609
• Fix some tests for SQLite backend by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3617
• Do not create OpLog database/collection on a fly by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3625
• Make listIndexes return a sorted list by @codenoid in https://github.com/FerretDB/FerretDB/pull/3602

New Contributors

• @Akhil-2001 made their first contribution in https://github.com/FerretDB/FerretDB/pull/3536
• @sid-js made their first contribution in https://github.com/FerretDB/FerretDB/pull/3532
• @codenoid made their first contribution in https://github.com/FerretDB/FerretDB/pull/3591
• @chanon-mike made their first contribution in https://github.com/FerretDB/FerretDB/pull/3578
• @pvinoda made their first contribution in https://github.com/FerretDB/FerretDB/pull/3593

All closed issues and pull requests.
All commits.

What's Changed

New PostgreSQL backend

The new PostgreSQL backend is ready for testing. Enable it with --postgresql-new flag or FERRETDB_POSTGRESQL_NEW=true environment variable. The next FerretDB version will enable it by default.

Docker images changes

Production Docker images use scratch as a base Docker image. The only file present in the image is a FerretDB binary (with root TLS certificates embedded).

arm64 binaries

In addition to linux/arm64 Docker images, we now provide linux/arm64 binaries and .deb / .rpm packages.

New Features 🎉

• Build arm64 binaries and packages by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3477
• Implement metrics collection by @Mihai22125 in https://github.com/FerretDB/FerretDB/pull/3430
• Implement RenameCollection by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3440
• Implement InsertAll by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3419
• Implement DeleteAll by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3441
• Implement DropDatabase and Status by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3451
• Implement UpdateAll by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3449
• Implement ListCollections, CreateCollection and DropCollection by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3444
• Implement explain by @noisersup in https://github.com/FerretDB/FerretDB/pull/3465
• Implement database.Stats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3464
• Implement collection.Stats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3478
• Implement CreateIndexes, DropIndexes, ListIndexes by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3468
• Implement filter pushdown by @noisersup in https://github.com/FerretDB/FerretDB/pull/3482
• Add info about indexes to dbStats response by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3534

Fixed Bugs 🐛

• Verify that client metadata not being mutated by @kropidlowsky in https://github.com/FerretDB/FerretDB/pull/3194
• Relax restrictions when _id is not the first field in projection by @princejha95 in https://github.com/FerretDB/FerretDB/pull/3491
• Fix _id restriction in aggregation $project stage by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3508

Enhancements 🛠

• Implement validation for createIndexes and dropIndexes commands for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3373
• Use Ping for checking connection by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3519

Documentation 📄

• Update Writing Guide by @Fashander in https://github.com/FerretDB/FerretDB/pull/3424
• Add blog post on Using MajorM as MongoDB GUI for FerretDB by @Fashander in https://github.com/FerretDB/FerretDB/pull/3387
• Add release blog post for FerretDB v1.11.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3439
• Fix RSS feed issue with images by @Fashander in https://github.com/FerretDB/FerretDB/pull/3417
• Republish Hacktobest blog post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3429
• Add blog post on Enmeshed by @Fashander in https://github.com/FerretDB/FerretDB/pull/3448
• Add $project and $unset to aggregation stages section by @Akhaled19 in https://github.com/FerretDB/FerretDB/pull/3450
• Add operation mode definition to Glossary by @rohitkbc in https://github.com/FerretDB/FerretDB/pull/3472
• Improve definitions for aggregation stages by @Fashander in https://github.com/FerretDB/FerretDB/pull/3499
• Add TODOs for capped collections by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3461
• Fix blog post formatting by @Fashander in https://github.com/FerretDB/FerretDB/pull/3515
• Fix typo in contributing documentation by @jrmanes in https://github.com/FerretDB/FerretDB/pull/3507
• Add mermaid diagrams by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3524
• Update documentation by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3530

Other Changes 🤖

• Add CI configurations by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3423
• Fix CI configuration and add TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3436
• Add SAP HANA backend stub by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3433
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3437
• Remove extra function by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3447
• Fix fluky TestRenameCollectionCompat tests by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3438
• Mark pushdown results based on tested backend by @noisersup in https://github.com/FerretDB/FerretDB/pull/3446
• Run tests with envtool tests run by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3453
• Remove unused expected failures by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3455
• Tweak SQLite backend tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3460
• Add tests for backends contract by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3456
• Speed-up Docker image building by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3470
• Fix running a subset of tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3479
• Add a workaround for Docker build failures by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3480
• Add stubs for Collection.Compact by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3485
• Process collection name param using collection tag by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3476
• Revive logic of lower cased key for collection name by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3494
• Add RecordID to types.Document by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3495
• Extract ReservedPrefix constant by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3497
• Fix stress tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3502
• Fix concurrent Docker builds by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3503
• Store indexes metadata by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3434
• Tweak tests timeouts by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3514
• Bump Go version by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3510
• Disallow importing handlers code from backends by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3512
• Disable auto_vacuum for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3496
• Fix index name generation by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3511
• Fix unit tests for indexes by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3531
• Make new PostgreSQL backend tests pass by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3522

New Contributors

• @Mihai22125 made their first contribution in https://github.com/FerretDB/FerretDB/pull/3430
• @Akhaled19 made their first contribution in https://github.com/FerretDB/FerretDB/pull/3450
• @rohitkbc made their first contribution in https://github.com/FerretDB/FerretDB/pull/3472
• @princejha95 made their first contribution in https://github.com/FerretDB/FerretDB/pull/3491
• @jrmanes made their first contribution in https://github.com/FerretDB/FerretDB/pull/3507

All closed issues and pull requests.
All commits.

Fixed Bugs 🐛

• Fix collStats to return correct count of documents for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3363
• Fix metadata updates for dropIndexes by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3358

Enhancements 🛠

• Return statistics of indexes for collStats and dbStats for SQLite backend by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3361

Documentation 📄

• Improve blog format by @Fashander in https://github.com/FerretDB/FerretDB/pull/3359
• Add a blog post for v1.10 by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3346
• Add docs for migrating to MongoDB from FerretDB by @Fashander in https://github.com/FerretDB/FerretDB/pull/3374
• Mention SQLite in docs by @ptrfarkas in https://github.com/FerretDB/FerretDB/pull/3408

Other Changes 🤖

• Add test for inserting different data types by @noisersup in https://github.com/FerretDB/FerretDB/pull/3345
• Recreate test directory by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3364
• Use consistent spelling by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3365
• Use filter and insert more documents in BenchmarkReplaceSettingsDocument by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3343
• Replace deprecated Jaeger exporter by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3368
• Remove the need to close conninfo by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3376
• Add small tweaks by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3377
• Add CI configuration for SQLite without pushdown by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3381
• Enforce valid types usage by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3384
• Reorder codebase in SQLite registry by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3382
• Store PostgreSQL metadata by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3356
• Add TODOs by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3412
• Run new PostgreSQL backend tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3407
• Implement Query in new PostgreSQL backend by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3411

All closed issues and pull requests.
All commits.

What's Changed

With this release, the SQLite backend support is officially out of beta, on par with our PostgreSQL backend, and fully supported!

New Features 🎉

• Implement aggregate for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3256
• Implement collStats for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3295
• Implement createIndexes for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3304
• Implement dbStats for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3270
• Implement distinct for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3265
• Implement dropIndexes for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3329
• Implement explain command for SQLite by @noisersup in https://github.com/FerretDB/FerretDB/pull/3264
• Implement findAndModify for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3302
• Implement getLog for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3279
• Implement listDatabases for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3269
• Implement listIndexes for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3301
• Implement renameCollection for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3321
• Implement serverStatus and dataSize commands for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3316
• Support _id implicit filter for ObjectID in SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3330
• Support $bit bitwise update operator by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3266
• Support ordered inserts for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3223

Enhancements 🛠

• Make deletes atomic for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3291
• Make updates atomic for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3296
• Do not change search_path parameter by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3299

Documentation 📄

• Cleanup $bit update operator by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3315
• Document how to test for compatibility by @b1ron in https://github.com/FerretDB/FerretDB/pull/3268
• Update blog writing guide documentation by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3209
• Update category links in writing guide by @Fashander in https://github.com/FerretDB/FerretDB/pull/3323
• Update deb.md - minor grammar correction by @athkishore in https://github.com/FerretDB/FerretDB/pull/3289
• Update the writing guide by @Fashander in https://github.com/FerretDB/FerretDB/pull/3311

Other Changes 🤖

• Add ability to freeze *types.Document and *types.Array by @KrishnaSindhur in https://github.com/FerretDB/FerretDB/pull/3253
• Add backend decorators and OpLog stub by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3303
• Add backend interface for collStats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3294
• Add backend interface for dbStats by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3267
• Add more tests by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3336
• Add new PostgreSQL backend stub by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3319
• Add tests for accessing aggregation variable $$ROOT field by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3254
• Add tests for validation bug by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3286
• Add transactions to fsql by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3278
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3284
• Clean-up *types.Timestamp a bit by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3305
• Do not ConsumeValues in the $group aggregation stage by @adetunjii in https://github.com/FerretDB/FerretDB/pull/3344
• Expand architecture docs, add comments by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3288
• Fix params handling for dropIndexes implementation for SQLite by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3350
• Make registry return full collection info by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3292
• Remove Database.Close by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3327
• Remove duplicated $expr tests by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3255
• Return correct response if unique index violation happened on SQLite backend by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3353
• Simplify and deprecate commonerrors.WriteErrors by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3258
• Skip tests for enable setFreeMonitoring for MongoDB by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3318
• Tweak MongoDB initialization process by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3307
• Update TODO comments by @noisersup in https://github.com/FerretDB/FerretDB/pull/3262
• Use pkgsite instead of godoc by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3326
• Use Go 1.21 by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3324

New Contributors

• @athkishore made their first contribution in https://github.com/FerretDB/FerretDB/pull/3289

All closed issues and pull requests.
All commits.

Enhancements 🛠

• Add more metrics for *sql.DB by @slavabobik in https://github.com/FerretDB/FerretDB/pull/3230

Documentation 📄

• Fix typos in documentation by @pratikmota in https://github.com/FerretDB/FerretDB/pull/3217
• Make the writing guide accessible but unlisted by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3221
• Add blog posts by @Fashander in https://github.com/FerretDB/FerretDB/pull/3198, https://github.com/FerretDB/FerretDB/pull/3153, https://github.com/FerretDB/FerretDB/pull/3210, and https://github.com/FerretDB/FerretDB/pull/3201

Other Changes 🤖

• Publish Docker images on quay.io by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3250
• Add linter for issue comments by @KrishnaSindhur in https://github.com/FerretDB/FerretDB/pull/3154
• Improve building with test coverage information by @durgakiran in https://github.com/FerretDB/FerretDB/pull/3059
• Update go-hdb to v1.4.1 by @aenkya in https://github.com/FerretDB/FerretDB/pull/3213
• Configure repo settings with files by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3208
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3215 and https://github.com/FerretDB/FerretDB/pull/3248
• Add another stress test for SQLite by @noisersup in https://github.com/FerretDB/FerretDB/pull/3195
• Fix concurrent SQLite tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3222
• Refactor aggregation operators by @noisersup in https://github.com/FerretDB/FerretDB/pull/3188
• Add stubs for renameCollection by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3233
• Update issue links by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3234
• Add stubs for explain by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3236
• Simplify commonerrors package by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3227
• Refactor aggregation accumulators by @noisersup in https://github.com/FerretDB/FerretDB/pull/3203
• Add new PostgreSQL backend stub by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3251
• Cleanup SQLite tests by @noisersup in https://github.com/FerretDB/FerretDB/pull/3246

New Contributors

• @aenkya made their first contribution in https://github.com/FerretDB/FerretDB/pull/3213
• @pratikmota made their first contribution in https://github.com/FerretDB/FerretDB/pull/3217
• @durgakiran made their first contribution in https://github.com/FerretDB/FerretDB/pull/3059
• @slavabobik made their first contribution in https://github.com/FerretDB/FerretDB/pull/3230

All closed issues and pull requests.
All commits.

New Features 🎉

• Implement $group stage _id expression by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3138
• Implement $expr evaluation query operator by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3163

Fixed Bugs 🐛

• Do not return immutable _id error from findAndModify for upserting same _id by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3171

Enhancements 🛠

• Cache SQLite tables metadata by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3124
• Use lock for SQLite metadata by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3146

Other Changes 🤖

• Make SQLite integration tests pass by @noisersup in https://github.com/FerretDB/FerretDB/pull/3150, https://github.com/FerretDB/FerretDB/pull/3151, https://github.com/FerretDB/FerretDB/pull/3152, https://github.com/FerretDB/FerretDB/pull/3159, https://github.com/FerretDB/FerretDB/pull/3173, https://github.com/FerretDB/FerretDB/pull/3174, https://github.com/FerretDB/FerretDB/pull/3182, https://github.com/FerretDB/FerretDB/pull/3184, https://github.com/FerretDB/FerretDB/pull/3185
• Expect some aggregate and insert tests to fail for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3147
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3142
• Improve MongoDB/FerretDB error checking in tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3143
• Bump deps, including Go by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3160
• Simplify tests a bit by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3149
• Use one implementation for finding path values by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3087
• Add tests for $$ROOT aggregation expression variable by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3180
• Add tests for $$ROOT by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3187

All closed issues and pull requests.
All commits.

New Features 🎉

• Implement $sum aggregation standard operator by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3063

Fixed Bugs 🐛

• Fix PLAIN auth with C# driver by @b1ron in https://github.com/FerretDB/FerretDB/pull/3012

Enhancements 🛠

• Add validating max nested document/array depth by @kropidlowsky in https://github.com/FerretDB/FerretDB/pull/2882
• Validate database and collection names for SQLite handler by @noisersup in https://github.com/FerretDB/FerretDB/pull/2868
• Add basic metrics, logging and tracing for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3123
• Tweak and document SQLite URI parameters by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3128

Documentation 📄

• Add blog post for FerretDB v1.6.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3058
• Update changelog by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3072
• Update blog post for FerretDB v1.6.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/3073
• Tweak documentation and blog by @Fashander in https://github.com/FerretDB/FerretDB/pull/2992
• Add blog post on "Community matters: fireside chat with Artem Ervits, CockroachDB" by @Fashander in https://github.com/FerretDB/FerretDB/pull/3066
• Update Blog Post by @Fashander in https://github.com/FerretDB/FerretDB/pull/3086
• Update tags formatting in writing guide by @Fashander in https://github.com/FerretDB/FerretDB/pull/3097
• Add blog post on "Using Mingo with FerretDB" by @Fashander in https://github.com/FerretDB/FerretDB/pull/3074
• Simplify checkdocs linter by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3104
• Update MongoDB comparision blog post by @ptrfarkas in https://github.com/FerretDB/FerretDB/pull/3117
• Update MongoDB comparision blog post by @ptrfarkas in https://github.com/FerretDB/FerretDB/pull/3119
• Add blog post on Grafana Monitoring for FerretDB by @Fashander in https://github.com/FerretDB/FerretDB/pull/3106

Other Changes 🤖

• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3064
• Mark some tests as failing for SQLite by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3051
• Improve sjson package fuzzing by @quasilyte in https://github.com/FerretDB/FerretDB/pull/3071
• Merges fuzztool into envtool by @Aditya1404Sal in https://github.com/FerretDB/FerretDB/pull/2645
• Do not import commonerrors in tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3081
• Remove dead code by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3093
• Allow to change SQLite URI in tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3092
• Replace test doubles with constants by @noisersup in https://github.com/FerretDB/FerretDB/pull/3024
• Improve checkdocs linter by @KrishnaSindhur in https://github.com/FerretDB/FerretDB/pull/3095
• Add daily progress principle to PROCESS.md by @rumyantseva in https://github.com/FerretDB/FerretDB/pull/3098
• Support _id aggregation operators for $group stage by @noisersup in https://github.com/FerretDB/FerretDB/pull/3096
• Bump the tools group in /tools with 1 update by @dependabot in https://github.com/FerretDB/FerretDB/pull/3109
• Backport v1.6.1 fixes by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3107
• Support recursive operator calls for $sum aggregation accumulator by @noisersup in https://github.com/FerretDB/FerretDB/pull/3116

New Contributors

• @Aditya1404Sal made their first contribution in https://github.com/FerretDB/FerretDB/pull/2645
• @KrishnaSindhur made their first contribution in https://github.com/FerretDB/FerretDB/pull/3095
• @ptrfarkas made their first contribution in https://github.com/FerretDB/FerretDB/pull/3117

All closed issues and pull requests.
All commits.

Fixed Bugs 🐛

• Fix pushdown for find with filter and limit by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3114

All closed issues and pull requests.
All commits.

New Features 🎉

• Implement killCursors command by @AlekSi in https://github.com/FerretDB/FerretDB/pull/2939
• Implement ping command for SQLite by @noisersup in https://github.com/FerretDB/FerretDB/pull/2965
• Implement getParameter method for SQLite by @chilagrow in https://github.com/FerretDB/FerretDB/pull/2985

Fixed Bugs 🐛

• Ignore lsid field in all commands by @b1ron in https://github.com/FerretDB/FerretDB/pull/3010
• Allow $set operator to update _id by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3009
• Apply pushdown for limit by @chilagrow in https://github.com/FerretDB/FerretDB/pull/2993
• Fix update with query operator for upsert option by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3028

Enhancements 🛠

• Add integration tests for maxTimeMS in find, aggregate and getMore by @chilagrow in https://github.com/FerretDB/FerretDB/pull/2953
• Remove double decoding in unmarshalSingleValue by @quasilyte in https://github.com/FerretDB/FerretDB/pull/3018
• Ignore count.fields argument by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3048

Documentation 📄

• Add blog post on FerretDB release v1.5.0 by @Fashander in https://github.com/FerretDB/FerretDB/pull/2958
• Mention SQLite in README.md by @AlekSi in https://github.com/FerretDB/FerretDB/pull/2968
• Add blog post about using NoSQLBooster with FerretDB by @Fashander in https://github.com/FerretDB/FerretDB/pull/2962
• Update blog post image by @Fashander in https://github.com/FerretDB/FerretDB/pull/3029
• Add a note about setting the stable API version by @b1ron in https://github.com/FerretDB/FerretDB/pull/3035
• Add blog post on "How to run FerretDB on top of StackGres" by @Fashander in https://github.com/FerretDB/FerretDB/pull/2869
• Fix blog post formatting by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3047
• Update database naming restrictions by @b1ron in https://github.com/FerretDB/FerretDB/pull/3042

Other Changes 🤖

• Move find and aggregation cursor integration tests to getMore by @chilagrow in https://github.com/FerretDB/FerretDB/pull/2952
• Make a copy of the testing.TB interface by @AlekSi in https://github.com/FerretDB/FerretDB/pull/2987
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/2998
• Remove Tigris from documentation and builds by @AlekSi in https://github.com/FerretDB/FerretDB/pull/2999
• Remove Tigris code by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3001
• Remove Tigris from tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3002
• Crush PNG files to make them smaller by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3020
• Update issue URL by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3021
• Move testutil.TB to testtb.TB by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3022
• Move logout to commoncommands by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3019
• Make task all run only unit tests by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3023
• Update closed issue links by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3027
• Unskip findAndModify $set integration test for _id by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3025
• Expect renameCollection tests failures by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3007
• Fix killCursors edge case by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3030
• Fix error checking in backend contracts by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3031
• Bump deps by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3034
• Remove Type() interface from aggregation stage by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3045
• Remove fixed issue link and clean up integration test provider setup by @chilagrow in https://github.com/FerretDB/FerretDB/pull/3052
• Prepare v1.6.0 release by @AlekSi in https://github.com/FerretDB/FerretDB/pull/3056

New Contributors

• @quasilyte made their first contribution in https://github.com/FerretDB/FerretDB/pull/3018

All closed issues and pull requests.
All commits.