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Sweep 28 Aug 2026 ยท 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.250 Feeds RSS JSON llms.txt

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Push events into a running session with channels

channels

first seen The page's own history The capture it came from

Nearest release: v2.1.239, published 2 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

channels Changed · +1 / -1 lines

from line 329
 
 If you set an empty array, you block all channel plugins from the allowlist, but `--dangerously-load-development-channels` can still bypass that block for local testing. To block channels entirely including the development flag, leave `channelsEnabled` unset instead.
 
-This setting requires `channelsEnabled: true`. If a user passes a plugin to `--channels` that isn't on your list, Claude Code starts normally but the channel doesn't register, and the startup notice explains that the plugin isn't on the organization's approved list.
+This setting requires `channelsEnabled: true`. If a user passes a plugin to `--channels` that isn't on your list, Claude Code starts normally but the channel doesn't register, and the startup notice explains that the plugin isn't on the organization's approved list. If you set `MCP_PROTOCOL_NEGOTIATION` to `auto` on the v2 MCP client runtime, a channel can also fail to register because Claude Code [doesn't register a channel server that negotiates protocol revision 2026-07-28](/docs/en/mcp#push-messages-with-channels).
 
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