ROS PMC Minutes for January 20, 2026

[mjcarroll]

The ROS PMC meeting for this week was on Tuesday. The notes from the meeting are available at ROS PMC weekly meeting agenda

ROS PMC Business

• Accelerated Memory Transport Working Group Charter
  • @mjcarroll to send out vote after this meeting (really this time)

Regular Business

Buildfarm update

• PTAL Buildfarm Issues Triage Sheet
• Issues
  • launch_testing_ros freezing some builds without log output
• Priorities
  • RQT Issues in Rolling
    • Don’t worry about fixing the rqt/rolling/noble combo, as shiboken6 isn’t available (but is available on resolute).
  • rosbag2_transport test_recorder_event_notifier expected size mismatch in Jazzy/Kilted/Rolling nightly connext
    • Mjcarroll to ping rti people about it

TestBroadcasterAndListener.test_static_broadcaster_and_listener failing in CI repeated jobs (not assigned)

Waffle note-taker

Waffle is a weekly meeting where maintainers triage incoming issues and pull requests that haven’t been otherwise acted upon. One person per week is assigned to be the “waffle note-taker” to both take notes in the meeting to keep the meeting as efficient as possible.

• January 22 + January 29 - @Katherine_Scott

Rosdistro assignments

Rosdistro is a weekly assignment to monitor incoming issues and pull requests in GitHub - ros/rosdistro: This repo maintains a lists of repositories for each ROS distribution. Two people per week are assigned to be the rosdistro maintainers.

• January 13 - January 20 - @christophebedard + @skye.galaxy
• Outgoing rosdistro
  • None

Release Management

• Audrow (Humble)
  • No updates.
• Yadu (Rolling)
  • Preparing for Rolling Sync 2026-01-16 - Packaging and Release Management - Open Robotics Discourse
• Marco (Jazzy)
  • Preparing for Jazzy sync and patch release 2026-01-22
• Scott (Kilted)
  • Sync this week

Working Group Updates

• Client Library Working Group
• Accelerated Memory Transport Working Group (unofficial)
  • Meet on last Friday to discuss rcl::Buffer.
  • 9am PST this Friday to followup.
• ROSGraph Working Group

Agenda

• [Clara] Resolute 26.04 standup updates
• [Clara] Windows 11 standup updates
  • MSVC2022 support
    • Kimberly has made progress in shutting down the compiler errors from cyclonedds
      • Windows 11 support · Issue #832 · ros2/ci · GitHub
    • Add arg for dynamic pixi.toml on ci.ros2.org.
      • Add a pixi toml url to the build parameter arguments by knmcguire · Pull Request #839 · ros2/ci · GitHub
  • rviz_default_plugins is making jobs on windows 2025 fail.
    • Verifying infrastructure differences between our current Windows Server 2022 and Windows Server 2025.
  • Do we have a decision on what to do for Windows 10 supported distros?
    • Action @sloretz to write a pseudo-REP on what we do with EOL operation systems
• [mjcarroll] C++20 and beyond?
  • Action @mjcarroll to post on disourse to ask for input
• [@InvincibleRMC] Python Static Typing RFC https://github.com/ros2/rosidl_python/pull/2440

[oysstu]

@mjcarroll did you post anywhere regarding C++20? I think this conversation is worth having now since lyrical is an LTS release. One one hand, an LTS release should be stable, on the other hand not moving to C++20 for that release means that backports to the LTS will be more difficult.

[mjcarroll]

Thanks for the reminder: ROS 2 Lyrical C++ Version