Matrix 1.17

[turt2live]

Date: Thursday, December 18, 2025
Previous release: #2208

Preflight checklist (release steps):

• Pin this issue to the repo.
• Ensure the social media account holders are available for the release day.
• Blog post written.
• Check for release blockers that may have been missed.
• Review/fix the changelog.

Release checklist (release steps):

• Branch stuffs.
• Github release artifact.
• Published to spec.matrix.org.
• All links work.
• Publish blog post.
• Announce in #matrix-spec, client developers, HS developers, SCT office, and other rooms as warranted.
• Post to Twitter/Mastodon.
• Close this issue.
• Unpin this issue from the repo.

Known release blockers:

• MSC4190: Device management for application services matrix-spec-proposals#4190