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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 ·

Startup timing is now broken down into more steps

Claude Code records timings for four more early startup steps, alongside the startup timings it already kept

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

Claude Code now records how long four more early startup steps take: pre_action_mdm_keychain_ms, pre_action_init_ms, pre_action_migrations_ms and pre_action_managed_settings_ms. These sit beside the two timings it already recorded.

Why

A slow startup can now be traced to the step that caused it.

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 doubtIt is not clear where these timings are sent.

See this entry in the whole of v2.1.284 →

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