9 releases from to
Everything OpenCode shipped in September 2026, collected from official OpenCode sources. Each entry is dated and links to the page it came from.
OpenCode released multiple versions in September 2026, including v1.18.28, v1.18.29, v1.18.30, and v1.18.34. Key updates involved session ID tracking, GPT version filtering, Astra system prompts, and macOS binary signing. Other changes focused on model compatibility, error handling, and security improvements.
Summary generated from the releases listed below.
September 2026 was OpenCode's 4th busiest month of the 8 we had tracked by then: 9 releases, about 1.5× its monthly average of 6. That was 2 releases fewer than August 2026. Every release this month was Product.
Releases
9
-2 vs August 2026
Rank of 8 months
4th
Average 5.9 a month
Most shipped
Product
9 releases
Core Send namespaced session and parent-session identity headers with model requests. Re-sign locally compiled macOS binaries so they run reliably on macOS 27+ (@ ryangamerdev ) Sign macOS CLI release binaries with a Developer ID.
Source: OpenCode ChangelogCore Cloudflare AI Gateway models now honor provider response and stream timeouts. (@ danlapid ) MCP browser launch failures are now reported when the launcher exits immediately. Debug configuration output now redacts credentials and sensitive headers. Gemini thinking defaults a…
Source: OpenCode ChangelogCore Fixed Bedrock image attachments so they are only hoisted for Claude, Nova, and Llama 4 models. Fixed Together AI streaming usage reporting.
Source: OpenCode ChangelogNewest first. Each entry links to the official page it came from.
Core Send namespaced session and parent-session identity headers with model requests. Re-sign locally compiled macOS binaries so they run reliably on macOS 27+ (@ ryangamerdev ) Sign macOS CLI release binaries with a Developer ID.
Core Cloudflare AI Gateway models now honor provider response and stream timeouts. (@ danlapid ) MCP browser launch failures are now reported when the launcher exits immediately. Debug configuration output now redacts credentials and sensitive headers. Gemini thinking defaults a…
Core Fixed Bedrock image attachments so they are only hoisted for Claude, Nova, and Llama 4 models. Fixed Together AI streaming usage reporting.
Core Restored ACP session model, effort, mode, and reasoning chunk boundaries when loading, resuming, or forking sessions. (@ JacobNWolf ) TUI Show remote config authentication errors during startup and exit with a failure status. Extensions Request summarized adaptive thinking…
Core Added the Astra system prompt for GPT-6 models. Preserved Bedrock DeepSeek model IDs, including ARN-based IDs, so they resolve correctly. (@ YeEmrick ) Updated the Azure provider SDK to pick up compatibility fixes. Updated the OpenAI provider SDK to pick up compatibility fi…
Core Allow Codex OAuth model filtering to recognize integer GPT versions like `gpt-6` Fixes issue of gpt-6-astra not showing up for openai subscription users
Core Send the session ID as GitHub Copilot's interaction header to improve request tracking across a session. Desktop Use the desktop client ID during OpenCode account device authentication. Increase the open-in app icon size for better visibility.
OpenCode releases per month, for September 2026 and the 7 months before it. A taller bar means more releases that month; the dated entries for each month are on its own page.
26 of the companies we track shipped in September 2026; OpenCode ranks 7th by number of releases.
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