[ ] Asked team if this is a good time for a release
[ ] There are no changes to be ported from the previous major version
[ ] No PRs targeted at this major version are close to getting in
[ ] Bumped minor for new features, patch for bug fixes
[ ] Updated changelog
[ ] Updated migration guide (as needed)
[ ] Link to PR updating dependency versions in appropriate repository in gazebo-release (as needed):
Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining Signed-off-by messages.
🎈 Release
Preparation for 9.0.0pre1 release.
Comparison to 8.6.0: https://github.com/gazebosim/gz-sim/compare/gz-sim8_8.6.0...readme_changelog_9.0.0pre1
Checklist
Note to maintainers: Remember to use Squash-Merge and edit the commit message to match the pull request summary while retaining
Signed-off-bymessages.