Lyrical Luth Release Timeline

Area: framework | Content type: reference | Level: intermediate, expert

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