CMX releases are published as stable builds and nightly builds. Stable builds are recommended for regular use. Every release is published with SHA256 checksums for verification.
v0.1.38
Stable · September 15, 2026
This release restores effective compression for upgraded installations and repairs databases affected by incomplete historical audit migrations.
- Compression starts at 1,000 estimated tokens with a 1,000-token recent tail, five rounds, no cooldown, and a 512-token summary limit.
- Existing compression settings migrate once with an owner-only rollback copy; provider routing, protected tools, and later user changes remain intact.
- Startup repairs missing compression request identifiers without deleting usage, session, or compression history.
- Responses JSON/SSE summaries, incomplete terminal events, bounded retries, and internal usage accounting are handled consistently.
- Nudges retain the real compression result, and decision diagnostics remain content-free.
- Cache reads remain separate from estimated compressor savings and net totals.
Full Release History
Every CMX release — including stable builds and nightlies — is listed on the GitHub releases page. Stable builds are also available from the downloads page.
Stable vs. Nightly
CMX is published to npm under two dist-tags:
latest tracks stable releases and is what you get with a standard npm install --global @compressius/cmx.nightly tracks prerelease builds for users who want early access to new features.
Each package downloads its matching binary for your platform and verifies the SHA-256 checksum before exposing the cmx command. You can confirm the version you are running at any time:
Check release notes before upgrading. Run cmx upgrade to see if an update is available without installing it.