Claude Code Daily Briefing - 2026-10-25

Release Summary

No new release as of 2026-10-25 — the latest version is still v2.1.310 (2026-10-23). The major new features and security fixes in v2.1.310 were already covered in yesterday’s (10/24) briefing, so today rounds up the remaining details we hadn’t gotten to yet, split between workflow tips and minor changes.

Full release notes

Developer Workflow Tips

Rendering Images from mods inside tmux now requires allow-passthrough and focus-events (v2.1.310)

Mods’ Image rendering now supports full-screen output on kitty, Ghostty, and iTerm2 3.5+, but inside tmux the actual image only renders if allow-passthrough and focus-events are turned on — otherwise you just get the alt text.

# ~/.tmux.conf
set -g allow-passthrough on
set -g focus-events on

If a mod that’s supposed to show an image inside tmux is only showing text, turning on these two options and restarting tmux may be all it takes to fix it. Full release notes

When an MCP server’s elicitation request times out in a non-interactive session, Claude Code no longer repeats the same call (v2.1.310)

In non-interactive sessions — -p or the Agent SDK — if an MCP tool call times out because the server’s elicitation (user-confirmation) request never gets answered, Claude Code now surfaces both the fact that no response came back and an explicit note not to retry the same call. Previously, Claude would sometimes repeat the call and hit the same timeout all over again.

If you’re running an MCP server that requires elicitation in a non-interactive or Agent SDK session where there’s no one around to respond, it’s safer to disable or work around that server’s elicitation settings ahead of time. Full release notes

Claude Code now automatically retries when a custom gateway rejects a beta header (v2.1.310)

A bug where requests would fail behind some gateways or compatibility servers that reject the effort-2025-11-24 beta value or mid-conversation system messages has been fixed — Claude Code now automatically retries without those values. Previously, requests behind these gateways could simply fail outright.

If you’re routing through your own gateway or a compatible server via ANTHROPIC_BASE_URL and have run into request failures caused by a rejected beta header, upgrading to v2.1.310 will likely fix it without any manual workaround. Full release notes

Security & Limitations

Claude service status — all three 10/24 incidents resolved, everything operational as of 10/25

Checking status.claude.com directly: the Fable 5.1, Sonnet 5.5, Haiku 5.5, and Opus 5.5 fast-mode errors covered in yesterday’s briefing were marked resolved at 09:11 KST on 10/24, followed by a separate Opus 5.5-only incident from 09:23–09:37 KST and a Fable 5/Fable 5.1 incident from 14:00–14:53 KST that same day — both of which have also been resolved. As of 10/25, no new incidents have been reported, and claude.ai, the Claude API, Claude Code, Claude Cowork, and Claude for Government are all showing Operational status.

If you ran into errors on Fable, Sonnet, Haiku, or Opus requests up through yesterday, all three incidents are now resolved and there are no new issues today, so it should be safe to retry. Claude Status

HTTP2Shell — the Brotli remote-code-execution flaw that started as Node2Shell has now spread to Python, Bun, Envoy, and Istio (10/25)

The Brotli decompression vulnerability (CVE-2026-111497), first identified in Node.js as Node2Shell, turns out to share the same underlying flaw across a range of other HTTP libraries and applications, including Python packages, Bun, Envoy, and Istio. Processing maliciously crafted compressed data can lead to memory leaks, process crashes, and remote code execution — and the risk isn’t limited to requests a server receives directly; it can also hit code paths that process responses fetched from external sources.

If you’re using Claude Code to work on Node.js or Python-based services, or running a service mesh like Envoy or Istio, this is another “2Shell”-style vulnerability following PHP2Shell — start by checking whether a Brotli decompression library shows up anywhere in your dependency tree. GeekNews

Community News

• Dessa — Block’s real-time conversational AI, trained from scratch purely on human voice conversations (10/24): Block has released Dessa, a real-time conversational model trained entirely on human voice-conversation data, with no text or pretrained language model involved. It runs full-duplex — speaking and listening at the same time — so it can handle interruptions, backchanneling, laughter, and natural speech timing. GeekNews
• A developer who reverse-engineered and shared findings about a Samsung TV got his OpenAI account suspended (10/24): After posting screenshots of his analysis of code in a Samsung TV’s ACR (automatic content recognition) feature — which distinguishes things like dog barks and baby cries, logs how often each occurs, and even collects location and network data — the developer says he was promptly notified that his OpenAI account had been suspended. GeekNews
• The same AI request emits 8.5x more CO2 in Texas than in Sweden (10/25): Applying regional grid average emissions intensity, the same Kimi K3 request run on identical hardware was estimated to emit about 0.4g of CO2 in Sweden versus 3.2g in Texas. Berget AI has open-sourced the per-request carbon-emissions methodology it developed together with SEI, WattTime, and Klimatkollen. GeekNews

Recommended Reads

• Software isn’t slow because of slow languages — it’s slow because of bad design (10/24): The argument here is that improving a program’s design often yields bigger performance wins than having AI rewrite it in C or Rust. If half your request latency is spent waiting on a database query, no amount of speeding up the rest of the code will meaningfully move the needle — worth remembering before reaching for an AI coding tool to “just rewrite this in a faster language.” GeekNews
• Outside the tech industry, AI’s investment payoff still isn’t showing up (10/25): Analysis from Apollo, the large US investment firm, finds no evidence yet of revenue or margin improvement outside tech, despite massive AI investment and high expectations. Revenue and margins per employee are climbing at the Magnificent 7 mega-cap tech names, but the other 493 companies in the S&P 500 are essentially flat — a useful contrast for gauging AI adoption’s real-world impact. GeekNews
• If utopia is right around the corner, you don’t need to plan for retirement (10/24): Daniel Ellsberg’s memoir of his time at RAND is shot through with a sense of mission to save the world and an insider’s awareness of dangers no one else grasps — rhetoric that this piece argues closely resembles how AI companies like Anthropic talk about themselves today. Ellsberg likened the bond among his RAND colleagues to a religious community, recalling how the shared belief that they were working together toward a transcendent cause is what held the group together. GeekNews

Interesting Projects & Tools

• Rakazo — a self-hosted, open-source alternative to Grok Bot (10/24): An open-source project for building and running your own role-based AI assistants locally — things like inbox cleanup, sales research, or expense processing. Each bot keeps its own conversation history, memory, and task record, so you don’t have to re-explain context every time, and it can drive the browser, terminal, files, and even the desktop screen. GeekNews
• GPU-unlock — a Linux module that removes the AI compute throttling on RTX 30-series GPUs (10/25): A Linux kernel module that lifts the instruction-issue-rate limits Nvidia imposes on FP16/BF16 compute for the RTX 30 series, unlocking throughput closer to what the professional-grade cards deliver. It patches things before the Nvidia driver initializes the GPU, so there’s no need to modify the driver itself or re-patch it after every update. GeekNews