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Anthropic news,
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Every Anthropic launch, price change, limit change and retirement, summarized with what you need to do about it.

Anthropic· Infrastructure

Claude Models on Google Cloud (Anthropic managed) is now generally available

Anthropic says Claude Models on Google Cloud (Anthropic managed) is now generally available. According to Anthropic, it brings the full set of Claude Platform features to Google Cloud, with Google Cloud IAM credentials, billing and commitment retirement.Anthropic· Products

Claude web, desktop and mobile sessions will default to auto mode next week

Anthropic's Claude account announced on X that, starting next week, sessions in the Claude web, desktop and mobile apps will run in auto mode by default on Pro, Max and Team plans. Instead of asking the user to approve each step, an automated check blocks risky actions. Users can switch back to manual approval at any time.Anthropic· Coding· 1 discussions

Anthropic advises folding subagents into the main agent loop, with a migration kit

In an article dated October 22, 2026, Anthropic's Applied AI team says that in several enterprise deployments on Claude Platform, a single agent using skills and tool search frequently beat both a one-prompt design and a subagent design on quality, often at lower cost and latency. It says one customer saw roughly 2x faster runtime moving from a multi-agent harness to a single loop. These are Anthropic's own observations, not published measurements.Anthropic· Models· 2 discussions

Anthropic says Claude wrote formal proofs that 123 open-source libraries cannot crash

In a collaboration with Theorem, Anthropic says it used Claude to prove security properties at the assembly level (RISC-V) in over 100 real-world open-source libraries, which it calls the first large-scale use of AI to formally verify production software at that level.Anthropic· Coding· 1 discussions

Anthropic donates the Agent Skills standard to the Agentic AI Foundation

Anthropic announced on October 22 that it is donating Agent Skills to the Agentic AI Foundation (AAIF), the foundation it earlier donated MCP to. Anthropic says the standard has been integrated by more than 70 agent platforms since December 2025, including ChatGPT, Cursor, GitHub Copilot and VS Code.Anthropic· Coding

Anthropic releases Claude API version 2026-10-21, with breaking changes

Anthropic's ClaudeDevs account announced API version 2026-10-21, which it calls the first official Claude API version release since 2023. Anthropic says it plans to release versions more often, so developers can handle breaking changes before a new model requires them. The older version, 2023-06-01, is not deprecated.Anthropic· Models· 5 discussions

Anthropic opens a research preview of Claude Duet, a proactive agent app

Anthropic has announced a research preview of Claude Duet, a new app where Claude works as a proactive agent. According to Anthropic, it brings you what needs your attention, completes tasks you ask of it, keeps working when you step away, and checks with you before it acts on your behalf.Anthropic· Products

Claude for Google Workspace opens in public beta on all paid plans

Anthropic released Claude for Google Workspace, an add-on that opens Claude in a sidebar in Google Docs, Sheets and Slides. It is in public beta on all paid Claude plans. Anthropic also released Google Docs, Sheets and Slides connectors (beta) so that Claude can create and edit Google files from a chat.Anthropic· Coding

Claude Security now scans continuously and tracks fixes

Anthropic announced on October 21 that Claude Security, in public beta on Claude Enterprise, now keeps its findings current as code changes. After repositories are connected once, Claude runs a deep first scan and then re-scans as changes land.Anthropic· Coding

Claude Code 2.1.305 fixes a 2.1.304 tool-search regression and adds a Linux sandbox setting

Claude Code v2.1.305, released October 20, 2026, per its release notes:Anthropic· Coding· 1 discussions

Anthropic's Frontier Red Team: Claude found 493 attack-surface issues across 25 open-source projects

Anthropic published "Using Claude to reduce the attack surface of code" on Oct 20, 2026. Everything below is Anthropic's own account.Anthropic· Models· 2 discussions

Anthropic: an internal Claude model designed protein binders against scorpion neurotoxins

Anthropic published a research post on October 20, 2026. Everything below is Anthropic's own account.Anthropic· Coding

Claude Code 2.1.304 adds auto-mode setup, usage warnings and Code Review levels

Claude Code v2.1.304, released October 19, 2026, per its release notes:Anthropic· Coding

Anthropic describes Scion, the in-house version control system it moved to from git

In an engineering post dated October 19, 2026, Anthropic says merges to its monorepo grew from about 2,500 to more than 30,000 a day, making source control the biggest development bottleneck. It says its team built Scion, an in-house version control system designed for always-online agents, and migrated off git in five months.Anthropic· Models

Anthropic says Claude designed quantum circuits better than the best published ones

Anthropic published "Designing more efficient quantum circuits with Claude" on Oct 16, 2026. Per its summary, it gave Claude plain-language specifications for eight quantum circuits, plus an automated evaluator to check and score the designs. Anthropic says Claude, working largely on its own, improved on the best published circuits, in some cases by an order of magnitude or more. The results are Anthropic's own claim and have not been independently checked.Anthropic· Models

Anthropic says Claude explained the decades-old mystery of where a popular ECDSA curve came from

Anthropic published "Claude reveals ECDSA curve origins" on Oct 16, 2026. Its summary says the decades-old mystery of the origins of one of the most popular cryptographic standards has been explained. This is Anthropic's claim and has not been independently checked.Anthropic· Models

Anthropic gives METR employee-like access to evaluate its systems and talks with other evaluators

In a post dated Oct 15, 2026, "An update on independent evaluators", Anthropic says it is giving a team from METR, a nonprofit that evaluates frontier AI models, employee-like access to assess the safety of its systems. It says it is in early discussions with several other organizations, including Hugging Face. This is Anthropic's own account.Anthropic· Models

Anthropic: small AI models may be months from self-replicating on IoT devices

Anthropic published "AI models may be capable of self-replicating without access to a datacenter" on Oct 12, 2026. Its summary says its experiments suggest small AI models may be only months away from being capable enough to self-replicate on commercial IoT devices such as Android TVs and smart ovens. The timeline is Anthropic's own projection.Anthropic· Models

Anthropic says it has cut illicit distillation of Claude by more than 90%

Anthropic published "Strengthening our defenses against distillation attacks" on Oct 12, 2026, on its news and research pages. Anthropic says illicit distillation lets model developers copy frontier capabilities without building proportionally robust safeguards, and that the measures it describes have reduced the rate of distillation by more than 90%. The figure is Anthropic's own claim.Anthropic· Models

Anthropic publishes a report on unintended model actions seen in evaluations and internal use of Claude

On Oct 9, 2026 Anthropic published "Investigating unintended model actions in our evaluations and internal use". Its summary says the report describes examples of unintended actions it has observed during evaluations and internal use of Claude. This is Anthropic's own account.
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