Sweep 19 Sep 2026 · 02:36Z Build v2.1.278 500 read Stable v2.1.267 Latest v2.1.278 Next v2.1.278 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.275 ·

Compaction summaries now report kept REPL bindings

Compaction summaries now say when your REPL/notebook variable state was kept, replacing the old cleared-state flag

TierNothing to try yethow much it should matter to you
Useful3my rating, 1 to 5
Signal3worth watching, 1 to 5
AreaREPLwhat it touches
KindIn Developmentin v2.1.275,
Group of 2 Nothing to try yet No documentation found

Compaction summaries now say when your REPL/notebook variable state was kept, replacing the old cleared-state flag

What

Compaction summaries (the notes shown when Claude Code condenses conversation history) can now include a note that your REPL (read-eval-print loop, i.e. notebook/code execution) variable bindings were preserved across compaction, saying "Your REPL VM state was kept across this compaction." This is powered by a new replBindingsKept field, computed from tool state, which replaces the previous replStateCleared boolean. This behavior is currently gated and not yet generally visible.

Why

This gives a clearer, positive signal about what was retained after compaction rather than only reporting that state was cleared, though it isn't yet enabled for all users.

Read from
Names in the bundlereplBindingsKept
How sure we are
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubtThe finding describes this as currently dark; whether or how it is enabled for any accounts is not stated.

See this entry in the whole of v2.1.275 →