OpenSquilla 0.5.0 Preview 2

OpenSquilla 0.5.0 Preview 2

Overview

OpenSquilla 0.5.0 Preview 2 is a preview maintenance release for the 0.5
routing and desktop/runtime line. It keeps the default path on the
single-model squilla_router, while the front-end ensemble toggle still
defaults enabled ensemble sessions to the packaged static_openrouter_b5
profile. This preview focuses on provider/router recovery, Web UI upload
refresh, desktop and session stability, and CI contract repair before the next
0.5 release candidate.

Existing gateway configuration and session data stay in place. Users upgrading
from 0.4.1 or 0.5.0 Preview 1 should close any running desktop app or gateway
process, install the 0.5.0 Preview 2 package, and restart OpenSquilla.

✨ What's Improved

Model Ensemble and provider routing

Provider and router settings are easier to recover and inspect across the Web
UI, desktop onboarding, config provenance RPCs, and the provider catalog. Fresh
installs continue to use the direct single-model router path by default. Users
who explicitly enable ensemble mode get the static OpenRouter B5 profile as the
default ensemble selection, with doctor and timeout checks scoped to that
opt-in path.

Managed execution and sandbox alignment

Cancelled turns, sandbox denial resume recovery, approval grant behavior, and
bounded code-task verification have tighter rollback and recovery behavior.
The code-task build scaffold now stays non-interactive by using the scaffold
package's supported skip flag.

Desktop and Control UI polish

The desktop app and Control UI improve local HTML artifact opening, desktop
reopen behavior, session deletion, attachment isolation, composer draft
persistence, refreshed-session recovery, empty states, voice readiness, and
ensemble progress trace display.

Web UI uploads and runtime contracts

Expired or near-expired staged uploads refresh their file UUIDs before send
when the original local file is still available. The Preview 2 branch also
repairs main CI contract drift around onboarding status fields, router mode
classification, migration/provider persistence, and static-B5 doctor coverage.

Non-user-initiated network observability can be disabled before startup with
OPENSQUILLA_PRIVACY_DISABLE_NETWORK_OBSERVABILITY=true or:

[privacy]
disable_network_observability = true

That unified switch covers automatic install telemetry, passive update checks,
and desktop startup auto-update checks. The legacy compatibility environment
variables OPENSQUILLA_TELEMETRY_DISABLED=true and
OPENSQUILLA_UPDATE_CHECK_DISABLED=true remain honored; manual user-initiated
release, download, or update checks may still contact GitHub after user intent.

Downloads

Recommended desktop downloads:

• macOS desktop installer: OpenSquilla-0.5.0-rc2-mac-arm64.dmg
• macOS desktop zip: OpenSquilla-0.5.0-rc2-mac-arm64.zip
• Windows desktop installer: OpenSquilla-0.5.0-rc2-win-x64.exe

Code signing policy: docs/code-signing-policy.md.

Terminal and automation downloads:

• Python wheel: opensquilla-0.5.0rc2-py3-none-any.whl
• Checksums: SHA256SUMS

No Windows portable assets are published for 0.5.0 preview releases. Existing
0.4.x portable downloads remain available on their original release pages for
legacy scripts and portable-folder workflows. New Windows users should use the
Electron installer or the terminal wheel install path. Do not expect a new
0.5.0rc2 portable zip or /releases/latest/download/ portable alias.

Privacy and third-party attribution are documented in
PRIVACY.md and
THIRD_PARTY_NOTICES.md.

Updater metadata:

• latest-mac.yml
• latest.yml
• *.blockmap

Upgrading from 0.4.1

If OpenSquilla was installed with uv tool install, reinstall 0.5.0 Preview 2
over the existing tool environment:

uv tool install --python 3.12 --force --reinstall-package opensquilla \
  "opensquilla[recommended] @ https://github.com/opensquilla/opensquilla/releases/download/v0.5.0rc2/opensquilla-0.5.0rc2-py3-none-any.whl"

The release installers use the same forced reinstall path. Close any running
OpenSquilla gateway or desktop app before upgrading, then restart it after the
install. Existing ~/.opensquilla/config.toml and session data are reused.

Desktop users should quit the running desktop app before replacing it. macOS
users install the .dmg by dragging OpenSquilla into Applications, ejecting
the mounted DMG, and opening the Applications copy. If the Dock icon keeps
bouncing or startup reports a busy/translocated app, force quit any old
OpenSquilla process, eject the DMG, and reopen OpenSquilla. Windows users run
the .exe installer.

Legacy Windows portable users should switch to the Windows Electron installer
or terminal wheel install path for 0.5.0 previews. Do not expect a new
0.5.0rc2 portable zip or /releases/latest/download/ portable alias.

Acknowledgements

Thanks to the contributor whose work is newly present in the 0.5.0 Preview 2
release surface:

• @HuaXiawithMoon for keeping code-task
  build scaffolding non-interactive.

See CONTRIBUTORS.md
for the full attribution ledger and PR/commit evidence.