Lyrical Luth Release Timeline

For progress on the development of Lyrical Luth, see this project board. For the broad process followed by Lyrical Luth, see the process description page.

As soon as possible - Migrate ROS Rolling to ROS Lyrical’s target platforms

  • RHEL 10 + Ubuntu 26.04: Migrate as soon as core packages successfully build on both platforms.

  • Windows 11: Migrate as soon as we have a green build

Mon. April 13, 2026 - Alpha + RMW freeze (Delayed; was originally April 6th)

  • Preliminary testing of ROS Base packages

  • API and feature freeze for RMW provider packages.

Mon. April 20, 2026 - Freeze (Delayed; was originally April 13th)

  • API and feature freeze for ROS Base packages in Rolling Ridley.

  • Only bug fix releases should be made after this point.

  • New packages can be released.

Mon. April 21, 2026 - Branch (Delayed; was originally April 20th)

  • Branch from Rolling Ridley

  • rosdistro is reopened for Rolling PRs for ROS Base packages.

  • Lyrical development shifts from ros-rolling-* packages to ros-lyrical-* packages.

Mon. April 27, 2026 - Beta

  • Updated releases of ROS Desktop packages available.

  • Call for general testing.

Thu, April 30, 2026 - Kick off Tutorial Party

  • Open up tutorials for community testing.

Mon. May 11, 2026 - Release Candidate

  • Build release candidate packages up to ROS Desktop

Mon. May 18, 2026 - Distro Freeze

  • Freeze all Lyrical branches on all ROS desktop packages

  • No pull requests for any Lyrical branch or targeting lyrical/distribution.yaml in rosdistro repo will be merged.

Friday May 22nd, 2026 - General Availability

  • Release announcement.

  • ROS desktop packages source freeze is lifted and rosdistro is reopened for Lyrical pull requests.

May, 2031 - End-of-life

  • ROS Lyrical will stop receiving updates - including security updates