No. 029 · 11 September 2026 · 3 min← No. 028 · No. 030 →

Correction

This issue published late on 11 Sep: the morning run did not write the file, and the recovery desk filed it after 06:00 UTC against the same masthead window.

SIGNALNOTABLE|SHIPPED 2|SKIPPED 5

The one thing

Claude Code 2.1.268 fixes third-party endpoint 400s since 2.1.265; ADK Python 2.9.0 breaks workflow resume and GCS paths; MAI-Code-1-Flash is off Copilot.

Claude Code v2.1.268 (20:30 UTC 10 Sep): every turn was failing with HTTP 400 on third-party Anthropic-compatible endpoints (ANTHROPIC_BASE_URL) since 2.1.265 — a regex in the Artifact tool schema those endpoints reject. Also: WebFetch 300s deadline; gateway pricing sync for /cost; high-CPU idle fix; Bedrock/Vertex/Foundry system-prompt and tool-list stability matching first-party. npm latest/next 2.1.268, stable still 2.1.236.¹²

google/adk-python v2.9.0 (21:22 UTC 10 Sep): model failover, LiveKit voice runner, MCP SDK 2.x opt-in, YAML graph configs. Breaking: a failed workflow node re-runs on resume (side effects fire again); GCS tools only touch paths under local_file_root and refuse local files when it is unset.³

GitHub changelog confirms MAI-Code-1-Flash deprecated across Copilot as of 10 Sep; suggested alternative MAI-Code-1.1-Flash (Enterprise may need model policy on).⁴

VERDICT · USE IT — Claude Code: pin ≥2.1.268, especially on ANTHROPIC_BASE_URL / third-party gateways. ADK operators: read 2.9.0 before upgrade — make node bodies idempotent and set local_file_root. Expect MAI-Code-1-Flash gone from Copilot.

Shipped

Use it

Claude Code 2.1.268 · third-party endpoint 400 fix + gateway pricing

Fixes HTTP 400 on every turn against third-party Anthropic-compatible endpoints since 2.1.265. WebFetch 300s deadline; gateway pricing: rates into managed settings; idle CPU and Bedrock/Vertex/Foundry cache/tool-list fixes. latest/next 2.1.268; stable 2.1.236.¹²

MATTERS TO · Anyone on Claude Code latest/next — mandatory if ANTHROPIC_BASE_URL or a third-party compatible endpoint is in the path

nofeed.dev/issues/2026-09-11/claude-code-2-1-268/

Breaking

ADK Python 2.9.0 · failover + LiveKit; resume and GCS paths break

Automatic model failover, LiveKit runner, MCP 2.x compatibility (1.x still default), YAML graphs. Failed nodes re-run on resume; GCS local I/O locked to local_file_root.³

MATTERS TO · Teams on google/adk-python with workflows, GCS tools, or MCP servers

nofeed.dev/issues/2026-09-11/adk-python-2-9-0/

Promised, not shipped
Claude Code weekly — permanent 125% of old standard from 14 Sept 2026 (promo 150% until then) · Copilot Business/Enterprise card/PayPal seat charge upfront — 1 Oct 2026 · Copilot model cutover (Gemini 3.5/3.6 Flash, Kimi K2.7 Code, Opus 4.7) — 2 Oct 2026 · GitHub Actions retention covers checks/runs/statuses — 1 Oct 2026 · Cursor OpenAI bundled end — proposed 12 Nov 2026 · GPT-5.6 Sol promo ≥21 Nov 2026; Copilot Fable 5.1 enterprise ZDR through year-end

The conversation

The claim — including ours

The pin is Claude Code 2.1.268. MAI is confirmed off; ADK 2.9.0 is the other decision.⁵⁶

From the floor

X digests 10 SepBackground · collected 05:30 UTC 10 Sep (~24.5h at masthead; no 11 Sep file)
Keyword X JSON present for 10 Sep; accounts layer thin. No 11 Sep collection — X is background only.⁵
RedditLayer thin
No 11 Sep digest; live pulse returned zero posts in-window. Declared empty, not quiet.⁶
Vendor statusPrimary
Anthropic Claude API elevated latency US Midwest ~1.7h minor resolved. OpenAI ChatGPT Work errors ~1.7h minor; support delays ~1.9h none. Cursor Review/Cloud Agents blip 0.4h minor. Europe ChatGPT errors opened after the window.⁷

Our take

Ship Claude Code 2.1.268. Treat ADK 2.9.0 as a deliberate upgrade with resume/GCS checklist. MAI-Code-1-Flash is gone.

Releases: 28 repos, complete, authenticated, 8 non-prerelease in-window (Cline desktop-v0.0.26 published 07:46 UTC — after 06:00 cut). Vendor feeds: 12 sources, complete, 17 in-window. X digests stop at 10 Sep 05:30 (~24.5h — background; no 11 Sep file). Reddit: no 11 Sep digest; live pulse 0 posts. HN not swept. arXiv not swept. npm tags via jsDelivr.

Skip this

openai-python 3.12.0 Live API + 3.13.0 Agents API; Codex Python SDK 0.154.0 Real SDK ships (Live/Agents APIs; max/ultra effort, ExternalMessage). Secondary to the Claude Code pin and ADK break.

anthropic-sdk-python 1.5.0 Managed Agents auto permissions; platform notes 10 Sep Pairs with Managed Agents auto mode on the API docs. SDK consumers only — not the day pin.

Vercel AI SDK harness adds GitHub Copilot adapter; Sandbox 64 GB storage Harness multi-agent surface; useful if you already run @ai-sdk/harness. Not a default install decision.

GitHub PR page refresh; AI Scan PR APIs; Actions cache-mode; Xcode 27 on macOS 27 Admin/preview surface. Real changelog, wrong altitude for the lede.

Cline desktop-v0.0.26; litellm v1.100.1; langchain-anthropic 1.7.2 Cline published 07:46 UTC — outside the masthead window. LiteLLM/langchain are patch noise.

Everything we saw

36 candidates scanned · 7 used in this issue — the rest, with the reason each one was left out

The receipt. Ranking is only trustworthy if the discarded pile is visible, so here it is: everything the collectors surfaced in the window, with its signal and what we did with it.

Item	Source	Signal	Call
Claude Code v2.1.268	github releases	20:30 UTC 10 Sep	led the issue
jsDelivr @anthropic-ai/claude-code tags	jsDelivr	stable 2.1.236 / latest 2.1.268	one thing
google/adk-python v2.9.0	github releases	21:22 UTC 10 Sep	shipped
MAI-Code-1-Flash deprecated	github changelog	16:54 UTC 10 Sep	one thing
openai-python v3.12.0 + v3.13.0	github releases	in-window	skipped secondary SDK
Codex Python SDK 0.154.0	github releases	19:51 UTC 10 Sep	skipped secondary
anthropic-sdk-python v1.5.0	github releases	17:45 UTC 10 Sep	skipped secondary
Vercel — GitHub Copilot AI SDK harness	vercel changelog	17:39 UTC 10 Sep	skipped harness
Keyword X digest 10 Sep	digests	~24.5h at masthead; no 11 Sep	conversation background
Anthropic status — Claude API latency Midwest	anthropic status	minor 1.7h resolved	conversation
Watchlist releases 24h to 06:00 UTC 11 Sep	github releases	8 non-pre in-window / 28 repos	sweep base
Cline desktop-v0.0.26	github releases	07:46 UTC 11 Sep — after cut	out of window

EOF

End of feed. That is everything from the window worth your time.
Explore more news, analysis and practical guides on NO FEED.

Still developingCC weekly 150%→125% 14 Sept. Copilot card/PayPal + model cutover + Actions retention 1–2 Oct. Cursor OpenAI bundled end 12 Nov. Sol promo ≥21 Nov. Fable 5.1 enterprise ZDR through year-end. CC stable lag (2.1.236 vs latest 2.1.268). Fri 5 Sep issue still unpublished (gap after #024).

Sources — each with the date it was read01 github — claude-code v2.1.268 (2026-09-11) · 02 jsDelivr — @anthropic-ai/claude-code tags (2026-09-11) · 03 github — google/adk-python v2.9.0 (2026-09-11) · 04 GitHub changelog — MAI-Code-1-Flash deprecated (2026-09-11) · 05 Keyword X digest 10 Sep (2026-09-11) · 06 Reddit live pulse 11 Sep (empty) (2026-09-11) · 07 Anthropic status — Claude API latency (minor 1.7h) (2026-09-11)