CATCH #1453
DETECTED SEP 18, 2026 18:24 UTC
THE CATCHscore 5/10
EXHIBIT 1453
Sep 18, 2026 18:24 UTC
github_releases+pages
https://raw.githubusercontent.com/anthropics/claude-code/main/CHANGELOG.md
Claude Code (v2.1.277) now supports `AGENTS.md` for project instructions and includes various fixes for hanging sessions, error reporting, and UI crashes.
READY TO POST:
claude code v2.1.277 just dropped! big news for agent developers: you can now use `agents.md` instead of `claude.md` for project instructions. pretty neat for organizing your agent projects.
new claude code update fixes a bunch of annoying bugs, from hanging sessions to unexpected logouts. also, some new proxy config options for gateway upstreams. smooth sailing for claude code users!
EVIDENCE — the receipts
[MERGED across 2 sources: github_releases, pages]
shared signal: claude-code
--- github_releases :: anthropics/claude-code ---
anthropics/claude-code release: v2.1.277
name: v2.1.277
published: 2026-09-18T18:06:32Z
url: https://github.com/anthropics/claude-code/releases/tag/v2.1.277
## What's changed
- Added AGENTS.md support: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead; change it under "Project instructions" in `/config` (not yet on Bedrock, Vertex or Foundry)
- Added `CLAUDE_GATEWAY_PROXY_IS_EGRESS_BOUNDARY=1` for Claude apps gateways whose only egress is a forward proxy: every outbound request hands the proxy the hostname instead of resolving it locally
- Added an optional `headers:` map on Claude apps gateway upstreams, to send static headers to a proxy you run in front of a provider
- Added a line saying a background task's update is waiting when it finishes while a panel such as `/tasks` is open
- Fixed `claude -p` and Agent SDK sessions that could hang with no result after an internal error; they now report the error and exit with code 1
- Fixed conversations failing every request with "text content blocks must be non-empty" when an earlier assistant turn held an empty text block beside other content, including after `--resume`
- Fixed being unexpectedly logged out when an older Claude Code build (for example an IDE extension's bundled CLI) runs on the same machine as the current one
- Fixed interactive start-up hanging or showing an error for `ANTHROPIC_API_KEY` users when `~/.claude.json` holds a malformed `customApiKeyResponses` value
- Fixed update checks erroring every 30 minutes, and `claude update` hanging when a minimum or maximum version is set, if a proxy returns an invalid version; a malformed `minimumVersion` is now ignored
- Fixed `claude update` on winget- or apk-managed installs reporting "up to date" when the version lookup failed
- Fixed `claude plugin install` sometimes failing and breaking the installed copy when
caught by the 20-minute sweep ·
the live wire · all receipts