66 bullets across 4 releases, issue #3334. Every no-op below was verified against the tree with a command, not read off the changelog. Floor stays 2.1.220; latest_known advances 2.1.222 to 2.1.226.
CC 2.1.223 made /review an alias of /code-review, reversing the 2.1.202 split. review-pr/SKILL.md routed readers to a distinction CC no longer draws. Second time this paragraph has needed correcting.
CC 2.1.224 removed the 200-subagent-per-session cap, so the immunity argument recorded in cc-support.json on 2026-07-18 no longer holds. Spawn depth is now the only structural limit, which raises the value of #3324.
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