iMicknl/ha-nest-protect v0.5.0

on GitHub

What's changed

This is the first stable release since v0.4.3, and it rolls up the v0.4.4 and v0.5.0b1 pre-releases. Most of the work makes authentication and updates more reliable. It fixes the most common reasons the integration stopped updating, or asked you to re-authenticate even though your credentials were still valid. It also adds a guided setup with a browser extension, Nest x Yale lock support and several new sensors.

Thanks to everyone who tested the betas and sent logs.

Getting credentials that last

Use the Nest Auth Helper extension attached to this release. It works in Chrome, Edge and Firefox 121+. Google can revoke a captured session within hours if the browser you captured it from keeps using the same Google sign-in. So capture it in a separate browser profile used only for this (Firefox works well), then close that profile right after copying the code, without signing out.

If you keep being asked to re-authenticate, use Reconfigure on the integration to enter new credentials. Please attach debug logs and diagnostics when you report it.

🐛 Bug Fixes

Authentication and session handling

• Persist Nest sessions across Home Assistant restarts and updates (#486)
• Keep background updates alive when authentication recovery fails (#586)
• Recover background updates from unexpected Google auth errors (#635, fixes #620)
• Count only authentication failures toward the re-authentication threshold (#638, #502 @marcusds, fixes #624)
• Serialize Nest session refreshes with a lock (#637, fixes #625)
• Persist rotated Google cookies as soon as they are received, even when a later step fails (#641, #555 @snfx-johaver, fixes #622)
• Keep re-authenticated cookies from being overwritten by the old session (#682)
• Pause Google token refreshes while Google throttles them, and only apply cookie deletions after a successful refresh (#634, thanks @dan-simms1 and @assafshafran)
• Treat transient Google/Nest server errors as temporary instead of bad credentials (#488, #643, fixes #628)
• Retry switch, select and lock commands once with a refreshed session (#645, fixes #626)
• Reject a different Google account on re-authentication, and add a reconfigure step (#647, fixes #627)
• Escalate backoff on repeated failures, prefer cookies over a leftover legacy token, and start re-authentication when a command's refresh is rejected (#665)
• Log the error and mark entities unavailable when re-authentication starts (#685)

Connection handling

• Back off when the subscriber fails fast on connection errors, so a network outage no longer floods DNS (#619, fixes #651)
• Fail fast on subscribe connect timeouts and follow transport URL changes (#644, fixes #630)
• Give short Google and Nest requests a 30-second timeout, instead of aiohttp's 5-minute default (#669)
• Space out re-subscribes if Nest keeps answering instantly, and stop re-opening an idle lock stream every 5 minutes (#665, thanks @ljmerza)
• Mark entities unavailable when Nest updates stop arriving (#646, fixes #621)

Devices and data

• Pick up new devices automatically and clean up removed ones (#648, #672, fixes #629)
• Build diagnostics from held data without disturbing the live session (#649, fixes #623)
• Preserve unknown sensor values and tolerate missing power metadata (#587)
• Fix a KeyError crash in generate_device_info() for Topaz devices with incomplete API data (#534) @bveldhuis
• Use the current Home Assistant units for battery levels and CO peak (#668, fixes #667, #676)

🚀 Features

• Guided setup with the Nest Auth Helper browser extension (#487, thanks @cscashby)
• Firefox support and debug logs in the Nest Auth Helper extension (#496) @carsso
• Add Nest x Yale lock support via gRPC-web (#511) @ljmerza
• Add Smoke and CO alarm state sensors: OK, testing, warning, emergency (#585) @lowlydba
• Report Protect connectivity, the same "offline" status the Nest app shows (#636)
• Add home safety summary sensors (#639)
• Expose the alarm hush state (#631), CO previous peak (#633), battery voltage (#640), and ambient light / temperature self-test results (#632)
• Report self-test sensors as timezone-aware timestamps (#642)
• Entity translations, including Dutch (#490)
• Show the integration's brand images locally, even while the internet is down (#674)
• Google token refresh statistics in diagnostics (#634)

📘 Documentation

• Recommend a dedicated browser profile for capturing credentials (#666)
• Update auth instructions (#492, #618)
• Migrate legacy translations to the current format (#491)

🧰 Maintenance

• Store state in runtime_data, run the subscriber as a config entry background task, set PARALLEL_UPDATES, fix the v2 → v3 config entry migration, and add more Nest DHCP prefixes (#650)
• Adopt recent Home Assistant changes: manifest categories (#673), centrally translated abort strings (#677), in-place entity ID renames (#675) and the DeviceInfo import (#679). Requires Home Assistant 2026.10 (#680)
• Dependency updates, including Home Assistant 2026.10.2

Contributors to this release

@assafshafran, @bveldhuis, @carsso, @cscashby, @dan-simms1, @iMicknl, @ljmerza, @lowlydba, @marcusds, @snfx-johaver