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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 v2.1.284 ·

Non-interactive mode measures more of its startup time

When run without the interactive screen, Claude Code now times its early startup and how long setting up the sandbox takes

Under the hood Internal Changes
JSON All of v2.1.284
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
StartupArea: what it touches
Internal ChangesKind: in v2.1.284,
Internal ChangesSection of the release
What

When Claude Code runs without its interactive screen, for example with -p or from a script, it now records two more timings: how long its early startup takes before loading the conversation, and how long the sandbox (the protected area commands run in) takes to set up. Nothing you see changes.

Why

This is usage data only. It shows startup speed in this mode is being measured.

See this entry in the whole of v2.1.284 →

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