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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.122 ·

Entry
JSON All of v2.1.122
EntryKind: in v2.1.122,
Bug FixesSection of the release
  • Fixed an issue where exit/quit typed in bash reply mode would incorrectly trigger the session exit handler. The check now only applies when in prompt mode, not bash mode. (search for "bash" && !v && f38.includes)
  • Fixed phantom parent UUID handling during transcript persistence — when a sourceToolAssistantUUID references a UUID not present in the current write set, it's now detected and logged via tengu_phantom_parent_write telemetry rather than silently creating a dangling reference. (search for "tengu_phantom_parent_write")
  • Fixed the /branch (fork) operation to respect the actual message ordering from the current session, ensuring forked sessions preserve the correct conversation flow. (search for GQ7 which now takes messages as a parameter)
  • Fixed RSA signature verification to enforce minimum PKCS#1 v1.5 padding length (8 bytes), preventing potential signature forgery attacks. Added _skipPaddingChecks option for backward compatibility. (search for "_skipPaddingChecks")
  • Fixed ed25519 signature verification to check scalar values are within the valid range, rejecting signatures with out-of-range S values. (search for "Jg1" in the ed25519 verification path)
  • Fixed BigInteger modInverse to handle zero input correctly, returning ZERO instead of potentially entering an infinite loop. (search for "this.signum() == 0" in the sp_ function)
  • Fixed semver prerelease identifier parsing to check numeric identifiers before non-numeric, matching the correct semver specification order. (search for "PRERELEASEIDENTIFIER" in the structural change)
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeFixed /branch producing forks that fail with "tool_use ids were found without tool_result blocks" when the source session contained entries…

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