What changed in October 2026

29 changes across 15 tools in October 2026. The busiest were Codex (4), Copilot (4) and Claude Code (3); most changes were model and release updates.

Friday, October 30, 2026

Claude CodemodelFast mode for Opus 4.8 is deprecated and ends November 30Fast mode on Claude Opus 4.8 stops working on November 30, 2026; requests will error rather than fall back.DevinlimitsDevin adds enterprise budgets with delegated spend limitsEnterprises can now arrange user and organisation spend into a budget hierarchy.

Thursday, October 29, 2026

CodexlimitsPro plans get double the Codex allowance, and the Pro 200 cut is cancelledPro 100 and Pro 500 now include twice their previous Work and Codex usage, and OpenAI dropped a planned reduction for Pro 200.FactoryreleaseFactory's Droid CLI and desktop app reach 1.0Factory moved the CLI and desktop app to a shared 1.0 version.

Wednesday, October 28, 2026

CopilotreleaseCopilot Fusion is generally available: automatic model routingCopilot Fusion, now on every Copilot plan, picks and combines models for each task, with 30% off model costs for a limited time.CopilotpricingGitHub Enterprise now includes Copilot, metered against an enterprise budgetEnterprises buying through a GitHub or Microsoft account team can give Copilot to every licensed GitHub Enterprise user, with all AI usage metered.

Tuesday, October 27, 2026

Gemini CLImodelGemini CLI now warns it isn't optimized for Gemini 4Gemini CLI 0.66.0 adds a banner saying it isn't tuned for the Gemini 4 models, and the project points Gemini 4 users to Antigravity CLI.OpenCodereleaseOpenCode 2.2 adds desktop plugins, with a breaking SDK changeVersion 2.2.0 adds experimental desktop plugins and a redesigned desktop app.

Monday, October 26, 2026

ClinemodelCline 4.1.26 changes default models and adds a model setting for cloud tasksWith no model chosen, the Cline provider goes back to Claude Sonnet 5.5, ClinePass now defaults to Kimi K3.1 Pro, and most other providers get new defaults.CodexmodelGPT-6.1 Terra arrives in Codex on paid ChatGPT plansA faster, more efficient model, GPT-6.1 Terra, is now available in Codex on Plus, Pro, Business, Enterprise and Edu.

Friday, October 23, 2026

DevinreleaseDevin Desktop (formerly Windsurf) redesigns its Agent WindowDevin Desktop 3.11.212 rebuilt the Agent Window to match the Devin web app and shipped October security updates.Replit AgentlimitsReplit apps keep running when credits hit zeroEligible customers’ published apps now keep running past zero credits, up to an overage limit.

Wednesday, October 21, 2026

JetBrains JuniereleaseJunie adds an ECO mode and shows remaining quotaJunie release 26.10.20 adds a cheaper ECO mode and a default-model setting, and shows quota and licence in /account.ZedsecurityZed 1.25.2 fixes secrets showing in the process list for remote agentsEnvironment variables and secrets for remote external agents and MCP servers could appear in the local process list.

Tuesday, October 20, 2026

CursorreleaseCursor's Agent SDK is generally available for building and deploying botsTeams can define agents as code, test them with evals and deploy them on Cursor's infrastructure.

Monday, October 19, 2026

CopilotmodelCopilot retires GPT-5.5, GPT-5.4, GPT-5 mini, Grok 4.5 and Gemini 3.7 FlashSix models were removed from most Copilot experiences on October 19, 2026, as announced in September.

Friday, October 16, 2026

ClinereleaseCline 4.1.25 starts rolling out cloud sessionsCline can now run tasks in a hosted sandbox on a chosen GitHub repository and branch.

Wednesday, October 14, 2026

CodexmodelGPT-5.5 retired from Codex for ChatGPT sign-inCodex users signed in with ChatGPT can no longer select GPT-5.5, so saved configs that name it need updating.KiromodelClaude Sonnet 4 reaches end of life in KiroKiro retired Claude Sonnet 4 on October 14, 2026.

Tuesday, October 13, 2026

Antigravity CLImodelGemini 4 Argon arrives in Antigravity and Antigravity CLIGoogle made Gemini 4 Argon available in the Antigravity app and CLI for Google AI Pro/Ultra and eligible Enterprise users.

Monday, October 12, 2026

CursorpricingCursor's new plans run from $8 to $200, with third-party models billed extraCursor now sells Free, Plus, Premium, Super and Ultra plans built around Grok, and Claude, GPT and other third-party models cost extra at API list price.

Saturday, October 10, 2026

AmppricingAmp lets anyone run threads on their Claude subscription for freeA new Claude Code mode runs Amp threads on your linked Claude subscription at no extra charge.

Friday, October 9, 2026

DevinlimitsDevin cuts its session resume window from 30 days to 14Devin cloud sessions can now be resumed for 14 days instead of 30.Gemini CLIpricingGemini Code Assist stops new Standard and Enterprise subscriptionsGoogle no longer sells new Gemini Code Assist Standard or Enterprise subscriptions, the paid plans that still include Gemini CLI.

Thursday, October 8, 2026

CodexpricingGPT-6.1 Sol Ultrafast arrives in Codex, at 8x included usageA much faster mode for GPT-6.1 Sol is available on Pro $500 and eligible Enterprise and Edu plans, and it uses allowance at a steep multiplier.CopilotpricingOrganisations can now pay for Copilot code reviews instead of membersA new setting lets an organisation bill code reviews to itself, and another restricts reviews to authorised users.

Wednesday, October 7, 2026

Claude CodemodelClaude Haiku 5.5 becomes Claude Code's default Haiku modelClaude Code 2.1.293 switches its default Haiku model to Haiku 5.5 on the Anthropic API.

Tuesday, October 6, 2026

Claude CodesecurityClaude Code 2.1.292 fixes a permission bypass for file reads from network pathsHook approvals and auto mode could let file reads from network shares skip the permission prompt.

Friday, October 2, 2026

JetBrains JuniepricingJunie Lite: a free model tier for every JetBrains accountJetBrains added a no-cost model option to Junie in the IDE and the CLI.