Claude Code 2.1.299-2.1.301 change hooks behavior in seven ways
10/16/2026 — 10/16, 14:19·1 sources (all)·1 reports (all)
Key takeaways
- A DEV Community author reviewed Claude Code versions 2.1.299, 2.1.300 and 2.1.301, released on October 14 and 15, flagging seven Changed ent…
Background & analysis
A DEV Community write-up published on October 16, 2026 looks at how three recent Claude Code releases changed the behavior of existing hooks. According to the author, Claude Code shipped versions 2.1.299, 2.1.300 and 2.1.301 across October 14 and 15, 2026. Across those releases, seven Changed entries in the changelog altered how hooks that users already had in place behave.
One example the author gives is the UserPromptSubmit hook. Since Claude Code 2.1.299, that hook runs before a skill expands, so a hook that blocks the prompt now also stops the skill's shell lines. The author notes that no one had to touch their hooks file for this to happen: the new behavior takes effect automatically once a user upgrades to the newer versions.
The write-up flags seven items as needing review, though the material provided does not detail what the remaining entries cover. The account is based on the author's own reading of the changelog rather than an official Anthropic statement, and no further cause, impact or evaluation is given in the source material.
AI-generated from 1 reports · updated 7 hours ago
Latest turnA DEV Community author walks through three Claude Code releases shipped on October 14 and 15: 2.1.299, 2.1.300 and 2.1.301. Seven entries in the changelogs changed how existing hooks behave, including a UserPromptSubmit hook that now runs before a skill expands, so blocking the prompt also stops the skill's shell lines. None of the changes require editing your hooks file; they take effect as soon as you upgrade.
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A DEV Community author walks through three Claude Code releases shipped on October 14 and 15: 2.1.299, 2.1.300 and 2.1.301. Seven entries in the changelogs changed how existing hooks behave, including a UserPromptSubmit hook that now runs before a skill expands, so blocking the prompt also stops the skill's shell lines. None of the changes require editing your hooks file; they take effect as soon as you upgrade.
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