Gazebo PMC Meeting Minutes 2026-07-27

Gazebo Gazebo PMC
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Hi Gazebo Community!

This week’s meeting was held on 2026-07-27T18:00:00Z and the following is a summary:

PMC Business

New agenda items

  • ROSCon Planning:
    • Birds of a Feather (BoF) Session: Planning for the BoF session on 2026-09-22T00:00:00Z (Discourse thread). Ideas include community testimonials, progress updates, next-gen Gazebo overview, and domain-specific check-ins (e.g. maritime, aerial).
    • PMC Meeting Schedule: Discussed adjusting the in-person PMC meeting time at ROSCon (e.g. 2026-09-21T00:00:00Z evening) to better accommodate travel schedules. No decision made yet.
  • Upcoming Community Meeting: Reminder for the Community Meeting on Simulating Spray Painting in Gazebo taking place this Wednesday.
  • C++20 Migration: Discussed migrating the main development branch (Rotary) to C++20. An issue will be opened to detail the rollout plan and track progress.
  • MuJoCo Packaging Dependencies: Resolving package naming conflicts between custom packages and upstream Ubuntu debs by upgrading to a newer upstream MuJoCo version (e.g., 3.10) to support Ubuntu Noble alongside Resolute (debbuilder job).

Updates

Infrastructure & Buildfarm

  • Flaky Tests:
    • Reopened investigation for flaky test PeerTracker.PeerTrackerStale (gz-sim#760).
    • Diagnosed UNIT_Server flakiness (gz-sim#3829) and created a simpler, backportable fix in gz-sim#3855.
  • Nvidia Driver Mismatches: Investigating Docker OCI image issues (buildfarm-tools#268) resulting from unattended driver/kernel updates on buildfarm hosts.
  • Ubuntu 26.04 Packaging: Started building initial Ubuntu 26.04 packages for Gazebo Jetty (gz-cmake, gz-utils, gz-tools2).

Physics & Simulation

  • Detachable Joint Contact Generation: Disabled contact generation between bodies connected by detachable joints in MuJoCo(gz-physics#1028).
  • Static Model Pose Updates: Added support for SetFreeGroupWorldPose on static models in MuJoCo (gz-physics#1026).

Core Libraries & Tools

  • COLLADA Loader Improvements: Merged Part 1 of COLLADA loader updates across multiple branches (Rotary, Jetty, Ionic, Harmonic, Fortress).
  • Message Factory Thread Safety & Laziness: Made MessageFactory thread-safe (gz-msgs#610) and updated the dynamic message factory to construct lazily (gz-msgs#611).

As always, the meeting notes are available at :classical_building: Gazebo PMC meeting weekly agenda - Google Docs.

The next Gazebo PMC meeting will be on 2026-08-03T18:00:00Z
(See Open Source Robotics Foundation official events)

ROS News for the Week of July 27th, 2026
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^October^September :smiley:

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Thanks @vmb. I’ve updated the post.

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