Nothing was actually released in this.

Changes

🐛 Bug Fixes

• Fix threading (#585) @timja

Changes

🚀 Features

• Adding ability to set icon_emoji and username on bot messages (#578) @EricBartusch
• Adding ability to unfurl links (#577) @EricBartusch

🐛 Bug Fixes

• Fix false success on test connection with bot user (#581) @timja

🚦 Tests

• Add missing configuration as code test (#582) @timja

Fix SECURITY-976, See https://jenkins.io/security/advisory/2019-03-25/
All users should upgrade

New features

• Folder credential support PR #541
• Simplify and Groovyfy attachment handling PR #536

New features

• Clarify the messaging around the failure notification options PR #519
• Add additional logging for notification conditions PR #516

Internal

• Introduce maven-checkstyle-plugin to validate no star imports PR #521

Bug fixes:

• Fix migration - credentials weren't being saved PR #513
• Use correct scope for migrated credential PR #515
• Remove 1.8 migration code and SlackJobProperty PR #514

Bug fixes:

• java.lang.NumberFormatException: When using parametrized scheduler PR #510

Removed functionality

• Integration token text removed from global configuration, it will be automatically migrated into a credential for you. There's upcoming changes for jobs and pipelines in this area as well PR #493

Bug fixes

• Add null check to extractReplaceLinks PR #497

New features

• Log response string to assist user PR #486
• Add class name to failed test notification PR #474

Internal

• Remove overriding plugin pom config PR #492
• Remove deprecated code PR #491
• Bump baseline and parent pom PR #485
• IntelliJ automatic code cleanup PR #484
• Remove token botUser hack PR #483

New features:

• Allow broadcasting thread messages to the channel PR #473

Bug fixes:

• Fix UI fields PR #471

Bug fixes:

• Fixed constructor of SlackJobProperty PR #468
• Adding null check on custom message PR #466
• Always runAfterFinalized PR #462

Docs updates:

• Added note for Global Slack Notifications PR #470