Follow Discord
Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
Claude Code v2.1.261 ·

Cloud/attach session flag support expanded

Cloud/attach sessions now recognize two more CLI flags for compatibility.

TierUnder the hoodhow much it should matter to you
Useful2my rating, 1 to 5
Signal1worth watching, 1 to 5
AreaElsewherewhat it touches
KindInternal Changesin v2.1.261,
Under the hood No documentation found

Cloud/attach sessions now recognize two more CLI flags for compatibility.

The cloud-session flag-compatibility table gains entries for awaitInitialize and appendSubagentSystemPromptFile, so these flags are now recognized and handled for attach/cloud sessions.

Read from
Names in the bundleawaitInitializeappendSubagentSystemPromptFile

See this entry in the whole of v2.1.261 →

Feedback