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Sweep 28 Sep 2026 · 18:16Z Build v2.1.284 505 read Stable v2.1.277 Latest v2.1.284 Next v2.1.284 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.280 ·

Git-sync snapshot/bundle logic adds 'hollow bases' and chained-bundle tracking, plus tamper detection reporting

Working-tree sync gains tamper detection and chained-bundle tracking for remote/background checkouts

Under the hood Internal Changes
JSON All of v2.1.280
Under the hoodTier: how much it should matter to you
3Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Git SyncArea: what it touches
Internal ChangesKind: in v2.1.280,
Internal ChangesSection of the release
What

The system that syncs a working tree (used for things like remote or background-agent checkouts) using git bundles has several additions:

  • hollowBases, a count tracked through push/pull results
  • a chained bundle flag, with chainBroken, previousLink, and lastLink handling for bundles that build on each other
  • tamperedNames counts, surfaced when the tool checks a tree's contents and finds unexpected object data

New telemetry fields include hollow_bases, tampered_names, sent_prerequisites, index_lock_throughout, head_moved_accepted, and head_moved_accepted_early.

Why

This lets Claude Code detect and report when a synced working tree's contents have been unexpectedly altered, and track the health of chained bundle transfers used to keep a working tree in sync.

See this entry in the whole of v2.1.280 →

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