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Sweep 27 Oct 2026 · 19:04Z Build v2.1.312 531 read Stable v2.1.308 Latest v2.1.312 Next v2.1.312 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.312 ·

Remote sessions turn off connection compression when it causes trouble

The connection to a remote worker now switches off compression after failures that suggest compression is breaking it

Under the hood Internal Changes
JSON All of v2.1.312
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
SessionsArea: what it touches
Internal ChangesKind: in v2.1.312,
Internal ChangesSection of the release
What

The live connection Claude Code keeps to a remote worker (a machine running a session elsewhere) now tracks whether data compression was offered on it. Compression is switched off after any of these:

  • The connection closes with code 1009, meaning a message was too big.
  • The connection ends several times in a row without being accepted.
  • A compressed connection never served anything.

A new way for a connection to end, deflate_keeps_context, is also handled.

Why

Some network proxies break compressed connections. Falling back to an uncompressed connection makes remote sessions more reliable behind them.

See this entry in the whole of v2.1.312 →

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