feat: Move expandable message composer out of feature preview

[MartinSchoeler]

Proposed changes (including videos or screenshots)

Moves the expandable message composer out of feature preview

Issue(s)

CORE-1526

Steps to test or reproduce

Further comments

Summary by CodeRabbit

• New Features
  • Expandable message composer is now available by default to all users.

[dionisio-bot]

Looks like this PR is ready to merge! 🎉
If you have any trouble, please check the PR guidelines

[changeset-bot]

🦋 Changeset detected

Latest commit: a8b10e2

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 42 packages

Name	Type
@rocket.chat/meteor	Minor
@rocket.chat/i18n	Minor
@rocket.chat/ui-client	Major
@rocket.chat/mock-providers	Patch
@rocket.chat/ui-contexts	Major
@rocket.chat/web-ui-registration	Major
@rocket.chat/omnichannel-transcript	Patch
@rocket.chat/omnichannel-services	Patch
@rocket.chat/gazzodown	Major
@rocket.chat/ui-voip	Major
@rocket.chat/fuselage-ui-kit	Major
@rocket.chat/uikit-playground	Patch
@rocket.chat/livechat	Patch
@rocket.chat/ui-avatar	Major
@rocket.chat/ui-video-conf	Major
@rocket.chat/queue-worker	Patch
@rocket.chat/core-typings	Minor
@rocket.chat/rest-typings	Minor
@rocket.chat/api-client	Patch
@rocket.chat/apps	Patch
@rocket.chat/core-services	Patch
@rocket.chat/cron	Patch
@rocket.chat/ddp-client	Patch
@rocket.chat/freeswitch	Patch
@rocket.chat/http-router	Patch
@rocket.chat/model-typings	Patch
@rocket.chat/account-service	Patch
@rocket.chat/authorization-service	Patch
@rocket.chat/ddp-streamer	Patch
@rocket.chat/presence-service	Patch
@rocket.chat/stream-hub-service	Patch
@rocket.chat/federation-matrix	Patch
@rocket.chat/license	Patch
@rocket.chat/media-calls	Patch
@rocket.chat/pdf-worker	Patch
@rocket.chat/presence	Patch
rocketchat-services	Patch
@rocket.chat/models	Patch
@rocket.chat/network-broker	Patch
@rocket.chat/omni-core-ee	Patch
@rocket.chat/instance-status	Patch
@rocket.chat/omni-core	Patch

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR

[coderabbitai]

Walkthrough

This PR graduates the expandable message composer feature from experimental preview to stable production status. The feature flag wrapper is removed from the component, feature preview references are eliminated from the codebase, and associated i18n keys are deleted. A changeset documents the version bumps for affected packages.

Changes

Cohort / File(s)	Summary
Changeset Entry .changeset/few-mirrors-smoke.md	Documents minor version bumps and notes the removal of expandable message composer from feature preview.
Message Box Component apps/meteor/client/views/room/composer/messageBox/MessageBox.tsx	Replaces conditional FeaturePreview-wrapped MessageComposerInput with unconditional MessageComposerInputExpandable; removes FeaturePreview imports.
Internationalization packages/i18n/src/locales/en.i18n.json, packages/i18n/src/locales/nb.i18n.json	Removes Expandable_message_composer and Expandable_message_composer_description translation keys.
Feature Preview Hook packages/ui-client/src/hooks/useFeaturePreviewList.ts	Removes 'expandableMessageComposer' from FeaturesAvailable union type and deletes its entry from defaultFeaturesPreview array.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

• Changes follow a consistent pattern: removal of feature flag references across multiple files
• No complex logic modifications; primarily housekeeping and cleanup
• Changes are homogeneous (all tied to graduating one feature), reducing cognitive load
• Worth verifying: confirm all references to the feature are removed and that component behavior remains correct after unwrapping the feature preview conditional

Possibly related PRs

• feat: Move Timestamp parser out of Feature Preview #36976: Follows the same pattern of removing a feature from the feature preview system and updating useFeaturePreviewList.ts
• feat: Resizable contextualbars out of feature preview #37022: Related stabilization PR removing contextualbarResizable from preview; modifies the same hook and applies equivalent cleanup patterns
• feat: Expandable Message Composer #36920: Originally introduced the expandable message composer behind a FeaturePreview; this PR completes its graduation to stable

Suggested labels

stat: ready to merge, stat: QA assured

Suggested reviewers

• dougfabris
• yash-rajpal

Poem

🐰 From preview's nest, the composer takes flight,
No longer behind a preview wall so tight,
Expandable, stable, now ready for all,
The feature preview list heard graduation's call! ✨

Pre-merge checks and finishing touches

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: moving the expandable message composer from feature preview status to stable production code.
Linked Issues check	✅ Passed	The changes align with CORE-1347 objectives by stabilizing the expandable message composer feature and removing it from feature preview status for release.
Out of Scope Changes check	✅ Passed	All changes are directly related to the stated objective of moving the expandable message composer out of feature preview, with no extraneous modifications detected.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch chore/expandable-composer-feat-previ

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 68.98%. Comparing base (0691514) to head (e14f0ce).
⚠️ Report is 11 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop   #37524      +/-   ##
===========================================
+ Coverage    68.97%   68.98%   +0.01%     
===========================================
  Files         3358     3358              
  Lines       114240   114226      -14     
  Branches     20537    20535       -2     
===========================================
+ Hits         78792    78796       +4     
+ Misses       33359    33339      -20     
- Partials      2089     2091       +2     

Flag	Coverage Δ
e2e	57.46% <100.00%> (+0.02%)	⬆️
e2e-api	42.85% <ø> (+0.03%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

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[github-actions]

📦 Docker Image Size Report

📈 Changes

Service	Current	Baseline	Change	Percent
sum of all images	1.2GiB	1.2GiB	+12MiB
rocketchat	367MiB	355MiB	+12MiB
omnichannel-transcript-service	141MiB	141MiB	+2.0KiB
queue-worker-service	141MiB	141MiB	-368B
ddp-streamer-service	127MiB	127MiB	+514B
account-service	114MiB	114MiB	+613B
stream-hub-service	111MiB	111MiB	-1.4KiB
authorization-service	111MiB	111MiB	-281B
presence-service	111MiB	111MiB	-2.0KiB

📊 Historical Trend

---
config:
  theme: "dark"
  xyChart:
    width: 900
    height: 400
---
xychart
  title "Image Size Evolution by Service (Last 30 Days + This PR)"
  x-axis ["11/15 22:28", "11/16 01:28", "11/17 19:04", "11/17 20:16 (PR)"]
  y-axis "Size (GB)" 0 --> 0.5
  line "account-service" [0.11, 0.11, 0.11, 0.11]
  line "authorization-service" [0.11, 0.11, 0.11, 0.11]
  line "ddp-streamer-service" [0.12, 0.12, 0.12, 0.12]
  line "omnichannel-transcript-service" [0.14, 0.14, 0.14, 0.14]
  line "presence-service" [0.11, 0.11, 0.11, 0.11]
  line "queue-worker-service" [0.14, 0.14, 0.14, 0.14]
  line "rocketchat" [0.36, 0.36, 0.35, 0.36]
  line "stream-hub-service" [0.11, 0.11, 0.11, 0.11]

Loading

Statistics (last 3 days):

• 📊 Average: 1.4GiB
• ⬇️ Minimum: 1.2GiB
• ⬆️ Maximum: 1.6GiB
• 🎯 Current PR: 1.2GiB

ℹ️ About this report

This report compares Docker image sizes from this build against the develop baseline.

• Tag: pr-37524
• Baseline: develop
• Timestamp: 2025-11-17 20:16:16 UTC
• Historical data points: 3

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Updated: Mon, 17 Nov 2025 20:16:16 GMT