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
One change · claude-code

Quickstart changed

agent-sdk/quickstart

Nearest release: v2.1.280, published an hour after upstream edited the page. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Upstream edited this page at 22 Sep 2026 14:15 UTC, give or take a minute or two: the time comes from Anthropic’s own sitemap rather than from a commit. This site recorded the change at 22 Sep 2026 14:37 UTC.

Upstream edited
Recorded here
Lines+1added
Lines−1removed
From line 221 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits5to this page, all time

The whole hunk

from line 221, old and new numbered
/
lines
from line 221
221221The message handling inside the loop filters for human-readable output. Without filtering, you'd see raw message objects including system initialization and internal state, which is useful for debugging but noisy otherwise.
222222 
223223<Note>
224 This example uses streaming to show progress in real-time. If you don't need live output (e.g., for background jobs or CI pipelines), you can collect all messages at once. See [Streaming vs. single-turn mode](/docs/en/agent-sdk/streaming-vs-single-mode) for details.
224 This example uses streaming to show progress in real-time. If you don't need live output (for example, for background jobs or CI pipelines), you can collect all messages at once. See [Streaming vs. single-turn mode](/docs/en/agent-sdk/streaming-vs-single-mode) for details.
225225</Note>
226226 
227227### Run your agent