Unverified50% confidenceFactExact time
v2.1.281 fixes multiple session-restoration bugs, including earlier turns being re-sent in altered form upon session resumption causing the API to discard reasoning chains, restored oversized sessions only recovering the last few messages, and broken prompt caching.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/23/2026
First Seen
Valid until: 12/22/2026
Sources
Related Entities
Related Claims
UnverifiedThis update fixes multiple crash issues related to --resume, --continue, and session restoration, including crashes when resuming conversations containing malformed message entries.79% similarUnverifiedThis update fixes a series of issues that caused prompt cache invalidation, including tool list and system prompt prefix changes during sub-agent resumption breaking cache reuse.73% similarUnverifiedv2.1.258 fixed the issue in remote sessions and scheduled sessions where failed re-sending of permission approvals threw a 'user messages must have non-empty content' error, causing session failures.73% similarUnverifiedv2.1.269 fixes an issue where the prompt cache was partially invalidated when a response was truncated upon hitting the output token limit and then automatically continued.70% similarUnverifiedThis update fixed issues where multiple concurrent sessions silently overwrote each other's modifications to ~/.claude.json, causing workspace trust states to be reset and MCP and project states to be lost.69% similar
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