Release v1.18.31 · 14 Sep 2026
Download OpenCode v1.18.31
Desktop and CLI assets below match the v1.18.31 GitHub release published 14 Sep 2026. Each button names the platform, the version, and the file size.
opencode-desktop-win-x64.exe · 120 MB · sha256 7e6e4bca1b243609172fa580520e72ed240627fc9c36a80763a6f29bd64b698f
Desktop builds
Official download page order: macOS Apple Silicon, macOS Intel, Windows x64, Linux .deb, Linux .rpm. Homebrew cask: brew install --cask opencode-desktop.
Download macOS Apple Silicon desktop v1.18.31
144 MB · dmg
Download macOS Intel desktop v1.18.31
149 MB · dmg
Download Linux amd64 desktop v1.18.31
117 MB · deb
Download Linux x86_64 desktop v1.18.31
102 MB · rpm
Terminal installers
Copied from the official download and intro pages. These are commands, not outbound buttons. On Windows the docs also list Chocolatey, Scoop, npm, Mise, and Docker.
curl -fsSL https://opencode.ai/install | bash npm i -g opencode-ai bun add -g opencode-ai brew install anomalyco/tap/opencode paru -S opencode choco install opencode scoop install opencode
CLI zip sizes on the same release: Windows x64 57.9 MB, macOS Apple Silicon 44.1 MB. Homebrew's official opencode formula lags the anomalyco tap.
System requirements
Pulled from the intro, Windows (WSL), and troubleshooting docs. There is no published RAM minimum. The hard dependencies are a terminal or WebView2, and a model.
- Terminal
- A modern emulator. The intro names WezTerm, Alacritty, Ghostty (Linux and macOS), and Kitty (Linux and macOS).
- Windows 10 and 11
- Desktop ships as opencode-desktop-win-x64.exe and win-arm64.exe. The docs recommend WSL for the better file-system and terminal path. Desktop still needs Microsoft Edge WebView2.
- macOS and Linux
- Apple Silicon and Intel desktop builds. Linux desktop is .deb, .rpm, and AppImage. Wayland users may need OC_ALLOW_WAYLAND=1. Clipboard on Linux needs xclip, xsel, or wl-clipboard.
- A model
- Free included models, an OpenCode Zen key, or API keys / subscriptions for the providers you want.
Version history
Entries are shortened from the official changelog. Dates are the ones published there.
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v1.18.31
14 Sep 2026Restored ACP session model, effort, mode, and reasoning chunk boundaries when loading, resuming, or forking. Remote config auth errors now fail startup. Copilot models request summarized adaptive thinking.
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v1.18.30
9 Sep 2026Astra system prompt for GPT-6. Bedrock DeepSeek IDs, including ARNs, resolve again. Azure and OpenAI provider SDKs updated. Reasoning-effort variants for supported GitLab GPT and Claude models.
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v1.18.29
4 Sep 2026Codex OAuth filtering recognizes integer GPT versions such as gpt-6. gpt-6-astra shows up for OpenAI subscription users.
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v1.18.28
4 Sep 2026Session ID sent as GitHub Copilot interaction header. Desktop uses the desktop client ID during OpenCode account device auth. Open-in icon size increased.
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v1.18.27
2 Sep 2026Provider header and streamed chunk timeouts default to five minutes. Anthropic thinking.blockBinding can be opted out and is limited to Claude 5.1+.
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v1.18.26
1 Sep 2026Claude 5 sessions tolerate stale thinking blocks. Bedrock GPT-5.6 accepts none reasoning effort. Desktop session renames save from the title editor and tab menu.
Hashes and signatures
The Windows x64 desktop installer on v1.18.31 is opencode-desktop-win-x64.exe at 120 MB. SHA256:
7e6e4bca1b243609172fa580520e72ed240627fc9c36a80763a6f29bd64b698f
The same release publishes a release attestation JSON. Maintainers stated that CLI and desktop have full code signing from v1.3.4. Compare the hash after you attach the real file URL to the button above.
Antivirus false positives
OpenCode unpacks native bits (including OpenTUI) into a temp folder on first start. Heuristic engines have labeled that as Trojan:Win32/Wacatac.H!ml or Kaspersky PDM:Trojan.Win32.Generic. Smart App Control Event 3077 can block unsigned DLLs even when Defender exclusions exist.
Do not turn Smart App Control off. Prefer a signed v1.18.31 desktop build, verify the hash, and follow the step-by-step antivirus note.