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Sweep 25 Sep 2026 · 19:33Z Build v2.1.283 504 read Stable v2.1.274 Latest v2.1.283 Next v2.1.283 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.281 ·

Keepalive-after-stop flag check refactored to take the flag name

The keepalive-after-stop check was restructured to take its flag name as a parameter, with no change in behaviour

Under the hood Internal Changes
JSON All of v2.1.281
Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Cloud SessionsArea: what it touches
Internal ChangesKind: in v2.1.281,
Internal ChangesSection of the release
What

The code that picks the keepalive-after-stop mode (off, on or cold) now receives its flag name as an input. The only name passed in is tengu_ccr_keepalive_after_stop_enabled, and its fallback is still false. Behaviour is unchanged.

At the most recent reading, which was not taken under this release, the flag server returned on for tengu_ccr_keepalive_after_stop_enabled for this site's account and for the anonymous baseline. It had switched on since the reading before. That flag was first seen on 2026-09-21.

Why

The restructuring itself changes nothing you will notice. The flag reading shows the server now answers on for this gate, even though the code's own fallback is false.

Read from
Feature flag
tengu_ccr_keepalive_after_stop_enabled On for this account, and not off by default

The flag server returned on for the one account this site reads, and nothing in this release compiles it off by default. The compiled default is shown below, and says which it is when we cannot read one: a fifth of gates compile in a string or a number rather than on or off, and most published releases have no gate table behind them at all. No client can see what the server returns for your account.

This account: on · anonymous baseline: on · compiled default in v2.1.281: not a boolean we can read

These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.

Read once, for one account on one subscription tier, against v2.1.281. It isn't a statement about your account. What a flag value here can and cannot tell you

See this entry in the whole of v2.1.281 →

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