AI Coding change log

Junie Eco mode hands implementation to a lower-cost model

Eco mode uses the selected model to plan and a cheaper model to implement and test; JetBrains reports about half the model cost per task in internal benchmarks. It is generally available in Junie CLI 26.10.20 and later. Date is the post's publication date from the page metadata.

OpenCode 2.2 adds Desktop plugins and a refreshed desktop app

OpenCode 2.2.0 lets users create, install and share experimental Desktop plugins, refreshes the desktop app, and removes the OpenCode GitHub Action.

GPT-6.1 Terra becomes available in Codex

GPT-6.1 Terra, a fast model with image understanding and computer use, becomes available in Codex and ChatGPT Work on Plus, Pro, Business, Enterprise and Edu plans.

GPT-6.1 Sol Ultrafast arrives in Codex for Pro $500 and eligible Enterprise and Edu

An Ultrafast mode speeds up GPT-6.1 Sol token generation in Codex, limited to the Pro $500 plan and eligible Enterprise and Edu plans (off by default for Enterprise).

Claude Code adds Claude Haiku 5.5 as its default Haiku model

Claude Code 2.1.293 adds Claude Haiku 5.5, which becomes the default Haiku model on the Anthropic API, with a 1M-token context window.

Codex CLI 0.160 adds opt-in Guardian review context and task history browsing

Browse older tasks in the agent command center, start sessions outside a project with workspace defaults, and opt in to Guardian review capabilities that include context from agent handoffs.

OpenCode 1.18.34 signs macOS CLI binaries with a Developer ID

Sends namespaced session identity headers with model requests and signs macOS CLI release binaries so they run reliably on newer macOS versions.

Codex CLI 0.159 lets new input steer Codex mid-response

Opt-in instant_interrupt lets new input steer Codex during model responses or long-running code-mode calls; new sessions get a compact welcome screen.

Claude Sonnet 5.5 added as the default Sonnet model (v2.1.284)

Release v2.1.284 adds Claude Sonnet 5.5, now the default Sonnet model on the Anthropic API.

Gemini CLI v0.61 hardens against indirect prompt injection

Core security hardening prevents indirect prompt injection via build file modifications and untrusted flags, and hardens filesystem boundaries.

Junie CLI adds Claude Opus 5.5, GPT-6 Sol and Luna, and Grok 4.7

Junie CLI release 26.9.22 (3419.7) adds support for Grok 4.7, Claude Opus 5.5, and GPT-6 Sol and GPT-6 Luna.

Claude Opus 5.5 added as the default Opus model (v2.1.280)

Release v2.1.280 adds Claude Opus 5.5, now the default Opus model.

AGENTS.md support: read when a project has no CLAUDE.md (v2.1.277)

Release v2.1.277: in a project with no CLAUDE.md, Claude Code reads AGENTS.md instead.

Warp adds native shell completions and fzf and atuin hand-off

Trigger fzf (ctrl-r or ctrl-t) and atuin from Warp, and get native shell completions alongside Warp's built-in completion specs.

claude plugin eval runs a plugin's eval suite with scored results (v2.1.269)

Release v2.1.269 adds `claude plugin eval` for reproducible, scored plugin evaluations.

Warp adds first-class support for Grok Build sessions

Warp detects Grok Build sessions, adds branded chrome in the footer, and enables rich input mode.

Claude Fable 5.1 added as the default Fable model (v2.1.257)

Release v2.1.257 adds Claude Fable 5.1, now the default Fable model.

JetBrains launches free on-device Junie Local for Mac

Junie Local runs a tuned local model entirely on the user's Mac with no credits or quota and no code leaving the machine.

OpenAI launches the Codex desktop app for macOS

The Codex app is a macOS desktop interface for running parallel agent threads with worktrees, Git tooling, skills and automations.

OpenCode 1.0 ships with rewritten TUI

OpenCode 1.0 replaced its Go/Bubbletea terminal UI with an in-house OpenTUI framework written in Zig and SolidJS.

Claude Code on the web launches as research preview

Anthropic introduced Claude Code on the web, letting users delegate coding tasks from the browser to sessions on Anthropic-managed cloud infrastructure.

Google launches open-source Gemini CLI with free tier

Google released Gemini CLI as an open-source terminal agent, free with a personal account at 60 requests/minute and 1,000/day during preview.

Warp 2.0 launches as an Agentic Development Environment

Warp releases Warp 2.0, repositioning the product as an Agentic Development Environment built around agent workflows. The same release raises AI usage limits on Pro and Turbo and adds pay-as-you-go overages.

Claude Code becomes generally available alongside Claude 4

Anthropic made Claude Code generally available with the Claude 4 launch, adding beta VS Code and JetBrains extensions and a Claude Code SDK.

OpenAI launches Codex cloud agent research preview

OpenAI introduced Codex, a cloud software engineering agent powered by codex-1, initially for ChatGPT Pro, Business and Enterprise users.