Source Intelligence
Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 0/5 agents 427 findings $12.75 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Checkpointing

checkpointing

first seen The page's own history The capture it came from

Nearest release: v2.1.239, published 5 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

checkpointing Changed · +1 / -1 lines

from line 15
 * Every user prompt creates a new checkpoint
 * Claude Code keeps file snapshots for the 100 most recent checkpoints in a session. Discarding an older checkpoint deletes the snapshot files that no remaining checkpoint references, except each file's first snapshot, which the VS Code extension uses as the baseline for its session diffs.
 * Claude Code saves checkpoints with the conversation, so you can still run `/rewind` after you resume a session
-* Claude Code deletes checkpoints along with sessions after 30 days, following the [retention sweep rules](/docs/en/claude-directory#cleaned-up-automatically); change the period with [`cleanupPeriodDays`](/docs/en/settings#available-settings)
+* Claude Code deletes checkpoints along with sessions after 30 days, following the [retention sweep rules](/docs/en/claude-directory#cleaned-up-automatically); change the period with [`cleanupPeriodDays`](/docs/en/settings-reference#cleanupperioddays)
 
 ### Rewind and summarize