Preparing for Jazzy Sync 2026-09-09

We’re planning a Jazzy Jalisco sync next Wednesday 2026-09-08T16:00:00Z. There are currently 882 packages ready to sync and one regression that we hope to fix.

If you find any other regression when testing, please report it upstream and leave a comment here so we can track it leading up to the sync.

Starting today 2026-09-06T16:00:00Z we’ll hold all rosdistro PRs unless they fix reported regressions.

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The sync is out!

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@marcogg Thanks for the sync.

What’s the plan for the next sync?
The issue Lost wakeup: check_and_attach_condition() clears wait_set_data->triggered without holding condition_mutex (regression from #1005) · Issue #1032 · ros2/rmw_zenoh · GitHub broke some of Zenoh usecases.
Looks like rmw_zenoh_cpp 0.2.11, which includes the fix, is already released and made into rosdistro rmw_zenoh: 0.2.11-1 in 'jazzy/distribution.yaml' [bloom] by Yadunund · Pull Request #53921 · ros/rosdistro · GitHub but jazzy 9-11 sync included 0.2.10, which seems to break the usecase of the team I’m working with.


UPDATE: Seems noted in PMC ROS PMC Minutes for September 15, 2026

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Yes, this zenoh bug is very real. It basically makes it impossible to use bag record (stops recording after random amount of time and says no error or warning). I’d say any release with the affected version is broken.

We’ll make one happen next monday.

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