3.0.0a0

What's Changed

🛠 Breaking Changes

• commands: remove --show-json/--show-md/--show-csv flags by @skshetry in #9475
• lockfile: drop 1.0 lockfile support by @skshetry in #9476
• exp: Drop init. by @daavoo in #9269
• exp show: Drop --pcp. by @daavoo in #9270
• remove data ls and support for --meta/--desc/--label/--type cli flags by @skshetry in #9481
• remove dvc.main.main alias by @skshetry in #9488
• drop Repo.stages by @skshetry in #9489
• drop top-level plots definition as mapping support by @skshetry in #9486
• exp: Drop gc. by @daavoo in #9273
• exp run / repro: Drop --metrics. by @daavoo in #9458

🚀 New Features and Enhancements

• stage add: introduce --run option by @skshetry in #9480

🐛 Bug Fixes

• exp: Fix --rev args for ls pull and remove. by @daavoo in #9483
• get_random_exp_name: Use custom random generator. by @daavoo in #9490

Other Changes

• set destination branch to PR title on backport by @skshetry in #9492

Full Changelog: 2.57.2...3.0.0a0