Updates and versions
Updating Line, what changed in 0.9.0-beta, old versions and the Line Code retirement.
- Can I go back to an older version of Line CLI?You can try installing a specific version with LINE_VERSION, but older versions may be unavailable and can lack fixes. Latest is recommended.How-to
- Do I need to restart Line CLI after updating?Yes. After line update or /update, quit Line and start it again so the new version runs. Your session is saved and can be continued.FAQ
- How do I check which version of Line CLI I have?Run line --version, or line status for version, build target, account and model. Inside Line, /status shows the same.How-to
- How do I find out when a new Line CLI version is released?Line doesn't notify you inside the app. Run line update to check, or watch the changelog on developers.clatterlabs.com.FAQ
- How do I update Line CLI?Run line update (or /update inside Line). It downloads the latest release, verifies its checksum and replaces the binary. Then restart line.How-to
- Line CLI release historyA summary of every public Line CLI beta release, from 0.3.0-beta to 0.9.0-beta, with the main change in each.Reference
- Line Code was retired. What does that mean for Line CLI?Line Code, Clatter Labs' earlier coding model, was retired on Nov 1, 2026. Line CLI now runs on SuperCosmos 1.1, and nothing breaks.Explainer
- line update failed. How do I fix it?Fixes for line update errors: no connection, checksum mismatch, and no permission to write next to the line binary.Troubleshooting
- My script prints "Line Code was retired" on stderr. Do I need to change it?Scripts that pass -m line-code still run, on SuperCosmos, with a one-line notice. Change them to -m supercosmos -e flash|max|heavy.Troubleshooting
- What changed in Line CLI 0.9.0-beta?Line CLI 0.9.0-beta (Nov 2, 2026) runs on SuperCosmos 1.1 only. Line Code is gone, and saved Line Code settings move to SuperCosmos.Reference
- What does "beta" mean for Line CLI?Line CLI is in beta: it's usable for real work but still changing quickly. Versions are marked -beta and features may change between releases.FAQ
- What happened to SuperCosmos 1.0 in Line CLI?SuperCosmos 1.1 replaced 1.0 on Nov 2, 2026. The same names and efforts now run 1.1, at the same prices. Nothing to change in Line.FAQ
- What happens if I keep using an older version of Line CLI?Older Line versions may still connect, but miss fixes and may refer to retired features. Update with line update to get 0.9.0-beta.FAQ
- Where did /delegate and /conversations go?Cosmos delegation (/delegate, /conversations, /tasks, /link) was removed in Line CLI 0.7.0-beta. Sub-agents now run the work locally.FAQ
- Which SuperCosmos effort replaces my Line Code setting?Line Code Fast becomes SuperCosmos Flash, Ultra becomes Max and Ultra Fast becomes Heavy. No effort or auto becomes Flash.Reference
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