hasPrompt signal added to headless/SDK turn processingExtensionsWant the reasoning? Read walks every section of this release, each entry opening to what changed and why.
Read this release → Every row →Smaller changes and internals, grouped as the pipeline found them. Nothing is dropped, it is only further down.
hasPrompt signal added to headless/SDK turn processing#Resuming a turn with no new prompt now skips an unnecessary model call in headless and SDK use.
Empty placeholder messages used to unblock permissions no longer get sent to the API as wire history.
Published verbatim by Anthropic for v2.1.258. Text is unmodified from the upstream changelog. Everything else on this page came out of the bundle instead, which is why the two lists don't match.
Of these 2 bullets, 0 name something an entry on this page also names, 1 name something no entry here does, and 1 name nothing specific enough to line up either way. The pairings are made on names both sides wrote down, a flag or a setting or a slash command, so read one as probably the same thing rather than as a fact, and read the middle number as candidates rather than as a miss count.
No change to the system prompt since v2.1.257.
Claude Code, interactive mode
462 documentation changes were recorded within 24 hours either side of this release, nearest first. The closest 12 are below. They're here because they happened near this release in time. That's not a claim that this release caused the edit, or that the page documents anything in it.
Every time above is when this site's poller recorded the change, which is up to half an hour after the edit on an ordinary read and up to a day after it on a full sweep. Upstream's own edit time is used instead wherever a capture carries one. None of these do.
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