Antigravity CLI v1.2.8
Antigravity CLI v1.2.8 was released on .
Summary
Antigravity CLI 1.2.8 now handles long conversations without cutting off important context, and fixes critical issues with PDF uploads on custom models and voice dictation sessions. We've also resolved crashes and improved terminal editor integration for smoother workflows. Ch...
Release Context
- This was the 51st Antigravity CLI release of 2026 tracked by Havoptic.
- It shipped 3 days after Antigravity CLI v1.2.7 (September 19, 2026).
Shipped around the same time
Within 3 days of this release, other AI coding tools also shipped:
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- Lovable 2026.09.25 (September 25, 2026)
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Release Notes
- Improved context compaction to spread its user-request budget across all captured prompts, so a long initial instruction is no longer truncated to a small fixed slice when the other prompts in the conversation are short
- Improved context compaction to size summary and truncation budgets from the model's full context window instead of the compaction trigger threshold, so compacted summaries and background-task lists are no longer prematurely cut short
- Fixed PDF and audio tool outputs and attachments failing with unsupported mime type errors on custom models configured in settings.json; custom models now accept PDFs by default and honor the modelFeatures media flags for images, video, PDF, and audio
- Fixed pressing Ctrl+G to edit the prompt in a full-screen terminal editor such as vim hanging with Vim: Warning: Output is not to a terminal; external editors now run against a real terminal stdout
- Fixed voice dictation sessions longer than 4 minutes failing with a deadline error and erasing the drafted transcription; recordings now automatically stop and finalize at 3 minutes 30 seconds
- Fixed a stack-overflow crash when loading or compacting conversations containing background-task, subagent-management, messaging, or scheduling steps
- Fixed forked conversations inheriting step output data from steps after the fork point, which could collide with new steps produced in the fork
- Fixed a background poller and timer leaking for every conversation session, slowly accumulating memory over long-running sessions
- Fixed canceled conversation and workspace creation requests continuing to provision resources in the background; aborted requests now stop immediately
- Fixed quitting the CLI taking around 5 extra seconds before the process exited; shutdown now cancels open streaming connections immediately instead of waiting for a forced timeout
Other Recent Antigravity CLI Releases
- v1.5.9 (November 14, 2026)
- v1.5.8 (November 13, 2026)
- v1.5.7 (November 12, 2026)
- v1.5.6 (November 11, 2026)
- v1.5.5 (November 10, 2026)
Upgrading from v1.2.8? See all 39 releases since.
All Antigravity CLI releases · All AI coding tool releases on Havoptic