🐛 Bug Fix

• Prevent inlining of async functions in last stage of the compiler when the functions are not exported (not in interface file or shadowed) https://github.com/rescript-lang/rescript-compiler/pull/5790

🚀 New Feature

• Support format check with rescript format -check. https://github.com/rescript-lang/rescript-compiler/pull/5760

🐛 Bug Fix

• Fix issue where the last line of rescript format --help usage was being swallowed https://github.com/rescript-lang/rescript-compiler/pull/5760
• Specialize the printing of the rhs of a record field assignment for optional values {x: ? e} https://github.com/rescript-lang/syntax/issues/714

🚀 New Feature

• Support the use of spread anywhere in list creation (e.g. list{...x, 1, ...y, ...z}). https://github.com/rescript-lang/syntax/pull/692
• Add support for the argument of @react.component to set a props type from the outside. https://github.com/rescript-lang/syntax/pull/699

🐛 Bug Fix

• Fix issue where the JSX key type is not an optional string https://github.com/rescript-lang/syntax/pull/693
• Prevent inlining of async functions https://github.com/rescript-lang/rescript-compiler/issues/5754
• Fix build error for JSX fragment without children https://github.com/rescript-lang/syntax/pull/704
• Fix issue where async as an id cannot be used with application and labelled arguments https://github.com/rescript-lang/syntax/issues/707
• Fix 5557: the exhaustive checking for char is incorrect during the unicode migration https://github.com/rescript-lang/rescript-compiler/pull/5749
• Fix 5753: the comment for unicode char is inaccurate https://github.com/rescript-lang/syntax/pull/709
• Treat await as almost-unary operator weaker than pipe so await foo->bar means await (foo->bar) https://github.com/rescript-lang/syntax/pull/711

💅 Polish

• Change payload of Pconst_char from char to int https://github.com/rescript-lang/syntax/pull/709

🐛 Bug Fix

• Fix issue with changes not being applied with React Native's Metro bundler for files with warnings https://github.com/rescript-lang/rescript-compiler/pull/5738
• Fix emitting unary minus for floats in case of negative constants https://github.com/rescript-lang/rescript-compiler/pull/5737
• Fix issue where a spread ...x in non-last position would not be reported as syntax error https://github.com/rescript-lang/syntax/pull/673/
• Fix issue where the formatter would delete async in a function with labelled arguments.
• Fix several printing issues with async including an infinite loop https://github.com/rescript-lang/syntax/pull/680
• Fix issue where certain JSX expressions would be formatted differenctly in compiler 10.1.0-rc.1 https://github.com/rescript-lang/syntax/issues/675
• Fix issue where printing nested pipe discards await https://github.com/rescript-lang/syntax/issues/687

💥 Breaking Change

• Deprecate DOM element attributes in JsxDOM.domProps: begin_, end_, to_
  • Use begin, end, to instead.
• Emit an error when a @string or @int attribute is used in a V4 component https://github.com/rescript-lang/rescript-compiler/issues/5724

🚀 New Feature

• Add extra variants for output filename suffixes in bsconfig.json: .bs.mjs and .bs.cjs are allowed https://github.com/rescript-lang/rescript-compiler/pull/5631
• Safe promises: t-first Js.Promise2 bindings, and remove warning for nested promises https://github.com/rescript-lang/rescript-compiler/pull/5709

🐛 Bug Fix

• Fix issue where uncurried async functions were emitted without async https://github.com/rescript-lang/rescript-compiler/pull/5718
• Fix location issue in error messages with JSX V4 where the multiple props types are defined https://github.com/rescript-lang/syntax/pull/655
• Fix location issue in make function in JSX V4 that breaks dead code elimination https://github.com/rescript-lang/syntax/pull/660
• Fix parsing (hence pretty printing) of expressions with underscore _ and comments.
• Fix printing of comments inside JSX tag https://github.com/rescript-lang/syntax/pull/664
• Fix issue where formatter erases tail comments inside JSX tag https://github.com/rescript-lang/syntax/issues/663
• Fix issue where the JSX prop has type annotation of the first class module https://github.com/rescript-lang/syntax/pull/666
• Fix issue where an empty record literal {} expected to have a non-record type would type check https://github.com/rescript-lang/rescript-compiler/pull/5729

👓 Spec Compliance

• Functions with consecutive dots now print as multiple arrow functions like in JavaScript.

💅 Polish

• Add loading, aria-* DOM element attributes in JsxDOM.domProps: ariaCurrent, ariaInvalid, ariaAutocomplete, etc.
• Change the internal representation of props for the lowercase components to record. https://github.com/rescript-lang/syntax/pull/665

🚀 New Feature

• Fix pretty printer where it would print doc comments on the same line as other attributes https://github.com/rescript-lang/syntax/pull/642
• Propagte "jsx" configuration to dependencies https://github.com/rescript-lang/rescript-compiler/pull/5661
• Add support for empty record literal {} for records where all fields are optional https://github.com/rescript-lang/rescript-compiler/pull/5658
• Add support for empty record type (e.g. type empty = {}) https://github.com/rescript-lang/rescript-compiler/pull/5658

🐛 Bug Fix

• Fix issue in formatting JSX spread props https://github.com/rescript-lang/syntax/pull/644
• Fix location issue in error messages with JSX V4 where the body of the component is an application https://github.com/rescript-lang/syntax/pull/633
• Fix printing of type declarations in error message where they would be considered recursive by default
• Fix issue where the printer would omit attributes for -> and |> https://github.com/rescript-lang/syntax/pull/629
• Fix printing of optional fields in records https://github.com/rescript-lang/rescript-compiler/issues/5654

💅 Polish

• Improvements and fixes for JSX V4. See guide https://github.com/rescript-lang/syntax/blob/master/cli/JSXV4.md
• Mention all missing fields in error message for records, not just one https://github.com/rescript-lang/rescript-compiler/pull/5657

💥 Breaking Change

• Vendor genType, which does not need to be installed separately anymore. Only TypeScript back-end supported.
• Pipe -> does not support a code block on the right-hand side e.g. x->{ open A; get("test") }

🚀 New Feature

• Experimental support for for async/await https://github.com/rescript-lang/rescript-compiler/pull/5537

• Make promise a built-in type https://github.com/rescript-lang/rescript-compiler/pull/5650

• Initial support for JSX V4 including genType, still work in progress.

  • 💥 when V4 is activated, at most one component is allowed for each module.

• Add placeholder types for ES6 collections: Set, Map, WeakSet, and WeakMap https://github.com/rescript-lang/rescript-compiler/pull/5630

🐛 Bug Fix

• Fix issue with arrays and creation of recursive values https://github.com/rescript-lang/rescript-compiler/pull/5640
• Fix issue where characters such as newlines would be escaped in a template string expression https://github.com/rescript-lang/rescript-compiler/issues/5638
• Fix issue where pipe -> processing eats up attributes https://github.com/rescript-lang/rescript-compiler/pull/5581
• Fix issue where cancelling rescript build would leave the .bsb.lock file behind and block future builds

💅 Polish

• Print patterns in warnings using rescript printer https://github.com/rescript-lang/rescript-compiler/pull/5492

🐛 Bug Fix

• Fix issue where watch mode would give an error on Windows https://github.com/rescript-lang/rescript-compiler/pull/5621

Compiler

💥 Breaking Change

• bsconfig.json does not support // line comments anymore.
  • Example: "suffix": ".bs.js" // determine the suffix
  • Fix: remove the comment and use standard json.
• Changed return type of Js.String.match_ as it was wrong. #5070
  • Example: any use of Js.String.match_ and Js.String2.match_
  • Fix: follow the type errors

🚀 New Feature

• New records with optional fields e.g. type opt = {x: int, y?: string} were added as an experimental feature #5423 #5452 New Syntax
• Add support for @new @variadic (see https://github.com/rescript-lang/rescript-compiler/pull/5364)

🐛 Bug Fix

• Classify bigint correctly #5351
• Fixed crash in rescript build on Windows #5516
• Fixed rescript init command not working #5526
• Fix issue with compiler log not terminated that causes problems with editor extension not clearing issues when fixed #5545

💅 Polish

• Changed Linux build to depend on GLIBC 2.28 again for compatibility with Debian 10.
• Proper M1 support (CI now supports M1 native builds)

Syntax

💥 Breaking Change

• @bs.send.pipe is now removed. Earlier it was deprecated.
• Missing labels in function application is now an error (https://forum.rescript-lang.org/t/ann-more-strict-checks-in-missed-labels/2117).
  • Example: let f = (x, ~z) => x + z; f(1, 2)
  • Fix: do let f = (x, ~z) => x + z; f(1, ~z=2) instead
• Externals without @val annotations do not work anymore, and externals with = "" give an error.
  • Example: external setTimeout: (unit => unit, int) => float = "setTimeout" is not supported anymore.
  • Fix: use @val external setTimeout: (unit => unit, int) => float = "setTimeout" instead.
  • Example2: @val external setTimeout: (unit => unit, int) => float = "" is not supported anymore.
  • Fix2: use @val external setTimeout: (unit => unit, int) => float = "setTimeout" instead.
• Strings processed at compile-time don't need escaping anymore.
  • Example: let blockCommentsRe = %re("/\\/\\*([^*]|[\\r\\n]|(\\*+([^*/]|[\\r\\n])))*\\*+\\//g").
  • Fix: use let blockCommentsRe = %re("/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g") instead.
• Remove parsing of "import" and "export" which was never officially supported https://github.com/rescript-lang/syntax/pull/597 https://github.com/rescript-lang/syntax/pull/599
  • Example: export type t = int
  • Fix: @genType type t = int
  • Example2: import realValue: complexNumber => float from "./MyMath"
  • Fix2: @genType.import("./MyMath") external realValue: complexNumber => float = "realValue"

🚀 New Feature

• Unicode is now supported in regular strings and chars (when the symbol fits). This is now going to work: let str = "Σ". And, you'll be able to pattern match on unicode chars: switch c { | 'Σ' => "what a fine unicode char" | _ => "unicode is fun" }
• Doc comments /** ... */ are now supported. Inernally, they are attributes, so are only valid at positions where @foo is allowed, or a syntax error is given. Similarly for module-level /*** comments */ that can go where @@attributes go.

🐛 Bug Fix

• Fix printing for inline nullary functor types #477
• Fix stripping of quotes for empty poly variants #474
• Implement syntax for arity zero vs arity one in uncurried application in #139
• Fix parsing of first class module exprs as part of binary/ternary expr in #256
• Fix formatter hanging on deeply nested function calls #261

Libraries

💥 Breaking Change

• "Attributes not allowed here". If you see this error chances are you're using a ppx that needs updating to a new version.
  See an exampe of how to update a ppx
  • Example: for rescript-relay 0.23.0 is not supported.
  • Fix: use rescript-relay@beta or the new version when released.
• Removed printing modules (Printf, Format etc) and related functions. Details of files added/removed: https://github.com/rescript-lang/rescript-compiler/commit/0fd8bb0e77c4b0e96a9647ac8af614305057003f.

🐛 Bug Fix

• Fix library issue with missing bytes_to_string https://github.com/rescript-lang/rescript-compiler/issues/5573 https://github.com/rescript-lang/rescript-compiler/pull/5589

💅 Polish

• Several Belt / Js libraries are now converted to ReScript syntax, with corresponding comments in Markdown format suitable for hovering. See #5361.

Playground

🏠 Internal

• Added jsoo_playground_main.ml as the rescript-lang.org playground bundle entrypoint

💥 Breaking Change

• Removed Reason syntax support for the playground experience. See https://github.com/rescript-lang/rescript-compiler/pull/5375

Release Candidate 1

10.0.0-rc.1

🐛 Bug Fix

• Fix library issue with missing bytes_to_string https://github.com/rescript-lang/rescript-compiler/issues/5573

10.0.0-beta.3

Compiler

💥 Breaking Change

• bsconfig.json does not support // line comments anymore.
  • Example: "suffix": ".bs.js" // determine the suffix
  • Fix: remove the comment and use standard json.
• Changed return type of Js.String.match_ as it was wrong. #5070
  • Example: any use of Js.String.match_ and Js.String2.match_
  • Fix: follow the type errors

🚀 New Feature

• New records with @optional fields e.g. type opt = {x: int, ?y: string} were added as an experimental feature #5423 #5452 New Syntax
• Add support for @new @variadic (see https://github.com/rescript-lang/rescript-compiler/pull/5364)

🐛 Bug Fix

• Classify bigint correctly #5351
• Fixed crash in rescript build on Windows #5516
• Fixed rescript init command not working #5526
• Fix issue with compiler log not terminated that causes problems with editor extension not clearing issues when fixed #5545

💅 Polish

• Changed Linux build to depend on GLIBC 2.28 again for compatibility with Debian 10.

• Proper M1 support (CI now supports M1 native builds)

Syntax

💥 Breaking Change

• @bs.send.pipe is now removed. Earlier it was deprecated.
• Missing labels in function application is now an error (https://forum.rescript-lang.org/t/ann-more-strict-checks-in-missed-labels/2117).
  • Example: let f = (x, ~z) => x + z; f(1, 2)
  • Fix: do let f = (x, ~z) => x + z; f(1, ~z=2) instead
• Externals without @val annotations do not work anymore, and externals with = "" give an error.
  • Example: external setTimeout: (unit => unit, int) => float = "setTimeout" is not supported anymore.
  • Fix: use @val external setTimeout: (unit => unit, int) => float = "setTimeout" instead.
  • Example2: @val external setTimeout: (unit => unit, int) => float = "" is not supported anymore.
  • Fix2: use @val external setTimeout: (unit => unit, int) => float = "setTimeout" instead.
• Strings processed at compile-time don't need escaping anymore.
  • Example: let blockCommentsRe = %re("/\\/\\*([^*]|[\\r\\n]|(\\*+([^*/]|[\\r\\n])))*\\*+\\//g").
  • Fix: use let blockCommentsRe = %re("/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g") instead.
• Remove parsing of "import" and "export" which was never officially supported https://github.com/rescript-lang/syntax/pull/597 https://github.com/rescript-lang/syntax/pull/599
  • Example: export type t = int
  • Fix: @genType type t = int
  • Example2: import realValue: complexNumber => float from "./MyMath"
  • Fix2: @genType.import("./MyMath") external realValue: complexNumber => float = "realValue"

🚀 New Feature

• Doc comments /** ... */ are now supported. Inernally, they are attributes, so are only valid at positions where @foo is allowed, or a syntax error is given. Similarly for module-level /*** comments */ that can go where @@attributes go.

🐛 Bug Fix

• Fix printing for inline nullary functor types #477
• Fix stripping of quotes for empty poly variants #474
• Implement syntax for arity zero vs arity one in uncurried application in #139
• Fix parsing of first class module exprs as part of binary/ternary expr in #256
• Fix formatter hanging on deeply nested function calls #261

Libraries

💥 Breaking Change

• "Attributes not allowed here". If you see this error chances are you're using a ppx that needs updating to a new version.
  See an exampe of how to update a ppx
  • Example: for rescript-relay 0.23.0 is not supported.
  • Fix: use rescript-relay@beta or the new version when released.
• Removed printing modules (Printf, Format etc) and related functions. Details of files added/removed: https://github.com/rescript-lang/rescript-compiler/commit/0fd8bb0e77c4b0e96a9647ac8af614305057003f.

💅 Polish

• Several Belt / Js libraries are now converted to ReScript syntax, with corresponding comments in Markdown format suitable for hovering. See #5361.

Playground

🏠 Internal

• Added jsoo_playground_main.ml as the rescript-lang.org playground bundle entrypoint

💥 Breaking Change

• Removed Reason syntax support for the playground experience. See https://github.com/rescript-lang/rescript-compiler/pull/5375

Beta 3

🐛 Bug Fix

• Fix issue with compiler log not terminated that causes problems with editor extension not clearing issues when fixed #5545

Beta 2

💅 Polish

• Changed Linux build to depend on GLIBC 2.28 again for compatibility with Debian 10.

Beta 1

🐛 Bug Fix

• Fixed crash in rescript build on Windows #5516
• Fixed rescript init command not working #5526

💥 Breaking Change

• bsconfig.json does not support // line comments anymore
• Externals without @val annotations do not work anymore, and externals with = "" give an error.
• Regular expressions don't need escaping. E.g. let blockCommentsRe = %re("/\\/\\*([^*]|[\\r\\n]|(\\*+([^*/]|[\\r\\n])))*\\*+\\//g") is now let blockCommentsRe = %re("/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g").

Alpha 1

Compiler

🚀 New Feature

• Add support for @new @variadic (see https://github.com/rescript-lang/rescript-compiler/pull/5364)
• New records with @optional fields #5423 #5452

🐛 Bug Fix

• Classify bigint correctly #5351

💥 Breaking Change

• @bs.send.pipe is now removed. Earlier it was deprecated.
• Missing labels in function application is now an error (https://forum.rescript-lang.org/t/ann-more-strict-checks-in-missed-labels/2117).
• Fix Js.String.match_ return type #5070

🏠 [Internal]

• Proper M1 support (CI now supports M1 native builds)

Syntax

🚀 New Feature

• Doc comments /** ... */ are now supported. Inernally, they are attributes, so are only valid at positions where @foo is allowed, or a syntax error is given. Similarly for module-level /*** comments */ that can go where @@attributes go.

🐛 Bug Fix

• Fix printing for inline nullary functor types #477
• Fix stripping of quotes for empty poly variants #474
• Implement syntax for arity zero vs arity one in uncurried application in #139
• Fix parsing of first class module exprs as part of binary/ternary expr in #256
• Fix formatter hanging on deeply nested function calls #261

💥 Breaking Change

• Remove parsing of "import" and "export" which was never officially supported.

Libraries

💥 Breaking Change

• Removed printing modules (Printf, Format etc) and related functions. Details of files added/removed: https://github.com/rescript-lang/rescript-compiler/commit/0fd8bb0e77c4b0e96a9647ac8af614305057003f.
• There could be issues with rescript-relay. See https://github.com/rescript-lang/rescript-compiler/issues/5493.

💅 Polish

• Several Belt / Js libraries are now converted to ReScript syntax, with corresponding comments in Markdown format suitable for hovering. See #5361.

Playground

🏠 Internal

• Added jsoo_playground_main.ml as the rescript-lang.org playground bundle entrypoint

💥 Breaking Change

• * Removed Reason syntax support for the playground experience. See https://github.com/rescript-lang/rescript-compiler/pull/5375

* means potential breaking changes

New since beta.1:

• Changed Linux build to depend on GLIBC 2.28 again for compatibility with Debian 10.

New since alpha.1:

• Fixed crash in rescript build on Windows #5516
• Fixed rescript init command not working #5526
• * bsconfig.json does not support // line comments anymore
• * Externals without @val annotations do not work anymore, and externals with = "" give an error.
• * Regular expressions don't need escaping. E.g. let blockCommentsRe = %re("/\\/\\*([^*]|[\\r\\n]|(\\*+([^*/]|[\\r\\n])))*\\*+\\//g") is now let blockCommentsRe = %re("/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g").

Compiler

• Add support for @new @variadic (see https://github.com/rescript-lang/rescript-compiler/pull/5364)
• New records with @optional fields #5423 #5452
• Classify bigint correctly #5351
• * @bs.send.pipe is now removed. Earlier it was deprecated.
• * Missing labels in function application is now an error (https://forum.rescript-lang.org/t/ann-more-strict-checks-in-missed-labels/2117).
• * Fix Js.String.match_ return type #5070
• Proper M1 support (CI now supports M1 native builds)

Syntax

• Doc comments /** ... */ are now supported. Inernally, they are attributes, so are only valid at positions where @foo is allowed, or a syntax error is given. Similarly for module-level /*** comments */ that can go where @@attributes go.
• Fix printing for inline nullary functor types #477
• Fix stripping of quotes for empty poly variants #474
• Implement syntax for arity zero vs arity one in uncurried application in #139
• Fix parsing of first class module exprs as part of binary/ternary expr in #256
• Fix formatter hanging on deeply nested function calls #261
• Remove parsing of "import" and "export" which was never officially supported.

Libraries

• * Removed printing modules (Printf, Format etc) and related functions. Details of files added/removed: https://github.com/rescript-lang/rescript-compiler/commit/0fd8bb0e77c4b0e96a9647ac8af614305057003f.
• * There could be issues with rescript-relay. See https://github.com/rescript-lang/rescript-compiler/issues/5493.
• Several Belt / Js libraries are now converted to ReScript syntax, with corresponding comments in Markdown format suitable for hovering. See #5361.

Playground

• Added jsoo_playground_main.ml as the rescript-lang.org playground bundle entrypoint
• * Removed Reason syntax support for the playground experience. See https://github.com/rescript-lang/rescript-compiler/pull/5375

* means potential breaking changes

New since alpha.1:

• Fixed crash in rescript build on Windows #5516
• Fixed rescript init command not working #5526
• * bsconfig.json does not support // line comments anymore
• * Externals without @val annotations do not work anymore, and externals with = "" give an error.
• * Regular expressions don't need escaping. E.g. let blockCommentsRe = %re("/\\/\\*([^*]|[\\r\\n]|(\\*+([^*/]|[\\r\\n])))*\\*+\\//g") is now let blockCommentsRe = %re("/\/\*([^*]|[\r\n]|(\*+([^*/]|[\r\n])))*\*+\//g").

Compiler

• Add support for @new @variadic (see https://github.com/rescript-lang/rescript-compiler/pull/5364)
• New records with @optional fields #5423 #5452
• Classify bigint correctly #5351
• * @bs.send.pipe is now removed. Earlier it was deprecated.
• * Missing labels in function application is now an error (https://forum.rescript-lang.org/t/ann-more-strict-checks-in-missed-labels/2117).
• * Fix Js.String.match_ return type #5070
• Proper M1 support (CI now supports M1 native builds)

Syntax

• Doc comments /** ... */ are now supported. Inernally, they are attributes, so are only valid at positions where @foo is allowed, or a syntax error is given. Similarly for module-level /*** comments */ that can go where @@attributes go.
• Fix printing for inline nullary functor types #477
• Fix stripping of quotes for empty poly variants #474
• Implement syntax for arity zero vs arity one in uncurried application in #139
• Fix parsing of first class module exprs as part of binary/ternary expr in #256
• Fix formatter hanging on deeply nested function calls #261
• Remove parsing of "import" and "export" which was never officially supported.

Libraries

• * Removed printing modules (Printf, Format etc) and related functions. Details of files added/removed: https://github.com/rescript-lang/rescript-compiler/commit/0fd8bb0e77c4b0e96a9647ac8af614305057003f.
• * There could be issues with rescript-relay. See https://github.com/rescript-lang/rescript-compiler/issues/5493.
• Several Belt / Js libraries are now converted to ReScript syntax, with corresponding comments in Markdown format suitable for hovering. See #5361.

Playground

• Added jsoo_playground_main.ml as the rescript-lang.org playground bundle entrypoint
• * Removed Reason syntax support for the playground experience. See https://github.com/rescript-lang/rescript-compiler/pull/5375

* means potential breaking changes

Compiler

• Add support for @new @variadic (see https://github.com/rescript-lang/rescript-compiler/pull/5364)
• New records with @optional fields #5423 #5452
• Classify bigint correctly #5351
• * @bs.send.pipe is now removed. Earlier it was deprecated.
• * Missing labels in function application is now an error (https://forum.rescript-lang.org/t/ann-more-strict-checks-in-missed-labels/2117).
• * Fix Js.String.match_ return type #5070
• Proper M1 support (CI now supports M1 native builds)

Syntax

• Doc comments /** ... */ are now supported. Inernally, they are attributes, so are only valid at positions where @foo is allowed, or a syntax error is given. Similarly for module-level /*** comments */ that can go where @@attributes go.
• Fix printing for inline nullary functor types #477
• Fix stripping of quotes for empty poly variants #474
• Implement syntax for arity zero vs arity one in uncurried application in #139
• Fix parsing of first class module exprs as part of binary/ternary expr in #256
• Fix formatter hanging on deeply nested function calls #261
• Remove parsing of "import" and "export" which was never officially supported.

Libraries

• * Removed printing modules (Printf, Format etc) and related functions. Details of files added/removed: https://github.com/rescript-lang/rescript-compiler/commit/0fd8bb0e77c4b0e96a9647ac8af614305057003f.
• * There could be issues with rescript-relay. See https://github.com/rescript-lang/rescript-compiler/issues/5493.
• Several Belt / Js libraries are now converted to ReScript syntax, with corresponding comments in Markdown format suitable for hovering. See #5361.

Playground

• Added jsoo_playground_main.ml as the rescript-lang.org playground bundle entrypoint
• * Removed Reason syntax support for the playground experience. See https://github.com/rescript-lang/rescript-compiler/pull/5375

Bug fix release for 9.1

The bugs fixed are listed below:

Build system
#5154 when toplevel package-specs get changed, its dependencies should be rebuilt
#5152 Rebuild not triggered when deletion with nested modules
#5153 when Different compiler version triggered,
it should clean the whole dependencies instead of just the repo itself
#5080 Add back -ws option for the build

Frontend parser/printing (issues are pinned to @rescript-lang/syntax)
#425 fix CRLF handling for windows
#414 Fix printing of underscore Pexp_fun sugar in context of Array.get
#408 Don’t parse Int token with suffices as hash ident for poly variants
#410 Fix parsing of arrow type with objects in constructor declaration args
#404 fix printing of Osig_module in outcome printer
#402 Implement printing of Otyp_module in outcome printe

Bug fix release, changes: https://github.com/rescript-lang/rescript-compiler/blob/master/Changes.md#902

A bug fix release coming after 9.0.
More details: https://rescript-lang.org/blog/release-9-0

Changes are available: https://github.com/rescript-lang/rescript-compiler/blob/master/Changes.md#90