v0.34.1 — installable again on Windows/macOS and from a clone
This is the release note as published, not a rewrite of it. Release notes are published in the language they were written in.
Patch release. Since 2026-07-12, pip install chimera-agent failed on Windows and macOS, and building from a clone failed everywhere. Both are fixed here. No feature changes — everything else on main waits for the next scheduled minor.
Fixed
pip install chimera-agent works again on Windows and macOS. litellm 1.92 (2026-07-12) moved to a compiled Rust core and publishes wheels only for manylinux — no Windows, no macOS, no pure-Python fallback. With no upper bound on our side, pip resolved to 1.93.0 on every platform, found no usable wheel off Linux, fell back to the sdist and demanded a Rust toolchain + maturin. Pinned to litellm>=1.40,<1.92; 1.91.4 is the last release shipping a py3-none-any wheel, so it installs anywhere. The ceiling comes off as soon as upstream ships Windows/macOS wheels again.
Note this means Python 3.11–3.13 in practice (litellm 1.91.4 requires <3.14).
Building from a clone works again — pip install -e ., pip install ., uv sync and docker build. The wheel config force-included apps/desktop/dist, a gitignored build artifact absent from every fresh checkout, and Hatchling aborts with Forced include not found when a forced include is missing, so the build backend died before anything else ran. It stayed invisible because a dev machine has that directory built and PyPI wheels are produced after the SPA is built. It is now declared in a build hook that applies only when the SPA actually exists; a wheel without it degrades as designed (the CLI falls back to a source-checkout dist, then to API-only).
Changed
uv.lock is now committed. Chimera is an application, so a pinned resolution is what makes a CI run reproducible; without it every job re-resolved from PyPI and silently picked up litellm 1.92 the day it landed, turning the whole matrix red with no change of ours.
Verification
Full CI green on this tag, including clean pip install on ubuntu, windows and macos × Python 3.11 and 3.13 — the job that proves a plain pip install works on the platforms that were broken.
Full changelog: https://github.com/brcampidelli/chimera-agent/blob/main/CHANGELOG.md