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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.308 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.299 ·

Cloud sessions now record memory and CPU use around each turn

Claude Code now records memory use and between-turn CPU and wall time in its turn timing data for remote sessions on Linux

Under the hood Internal Changes
JSON All of v2.1.299
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
Internal ChangesKind: in v2.1.299,
Internal ChangesSection of the release
What

A turn is one round of you sending a message and Claude answering. Claude Code keeps a timing record for each turn. In remote sessions, meaning sessions that run on a machine in the cloud rather than on your own computer, that record now holds more:

  • Memory figures read from Linux at the start of a turn and again when the turn's output is consumed
  • CPU time and wall-clock time spent between turns

Before, only resource figures from the start of a turn were captured. This applies only on Linux, and only when CLAUDE_CODE_REMOTE_ENVIRONMENT_TYPE is not set to self_hosted. Nothing you see on screen changes.

Why

This is usage data only. It shows that memory and CPU use in cloud sessions are now being measured.

See this entry in the whole of v2.1.299 →

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