Connected Workspaces synchronize channel membership

[cwarnermm]

@claude - Let's update the Mattermost Product Documentation to reflect the admin's connected workspaces (formally known as shared channels) product experience from Mattermost server v10.10 onward in mattermost/mattermost#30976.

Starting from the master branch, ensure the docs PR is added to the v10.10-documentation branch. The doc should focus only on the fact that shared channels now synchronize channel membership from Mattermost v10.10.

[claude]

Claude finished @cwarnermm's task —— View job • claude/issue-8078-20250618_180518 • Create PR ➔

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Connected Workspaces Documentation Update

I've successfully updated the Mattermost Product Documentation to include the new connected workspaces channel membership synchronization feature from v10.10 onward.

Todo List

• Read repository setup instructions (CLAUDE.md) - No repo-specific instructions found
• Research the referenced Mattermost server PR for feature details
• Locate existing connected workspaces documentation
• Update documentation to include channel membership synchronization details for v10.10+
• Commit changes and provide PR link targeting v10.10-documentation branch

Changes Made

Updated /source/onboard/connected-workspaces.rst to include new documentation about channel membership synchronization:

Starting from Mattermost v10.10, channel membership is automatically synchronized between connected workspaces. When a user is added to or removed from a shared channel on one workspace, that membership change is automatically applied to the corresponding shared channel on all connected workspaces. This ensures consistent channel membership across all participating Mattermost instances.

The documentation was added to the existing FAQ section "What information is synchronized between connected workspaces?" to provide clear information about this new functionality alongside the existing synchronization features.

Next Steps

The PR should be merged into the v10.10-documentation branch as requested. The changes focus specifically on the channel membership synchronization functionality without adding unnecessary details about other features.

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