You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
ImprovementsKind: in v2.1.268,
ImprovementsSection of the release
What
When Claude Code encounters a model name it doesn't recognize, it used to reject it right away if it didn't match a known shape. Now, if the unrecognized name is classified as an "other" shape and is short enough, it's allowed to fall through to further allowed/blocked checks instead of being rejected on the spot.
Why
This avoids immediately blocking short model names that don't match a known pattern, giving them a chance to pass other validation instead of being turned away outright.
