u/HandyAlexander

This release focuses on firmware update reliability, charging and battery behavior, and general stability. Most of the changes are things you notice when something goes wrong — updates that recover instead of failing, and charging that behaves sensibly with less-than-ideal chargers.

Firmware updates

• Firmware updates are faster and more reliable, so an update is less likely to stall or fail partway through.
• Devices that lose power or get interrupted during an update now recover on their own instead of being left in a broken state.
• Update failures now report a clearer reason, which makes it much easier for support to tell what actually went wrong if you ever need help.

Charging and battery

• Charger detection and handling were improved, particularly with slow chargers and chargers that aren't recommended for the device. The device is better at deciding what it can safely draw.
• The device now reports when it is charging slowly, so you can tell the difference between a bad charger and an actual charging problem.
• Fixed a bug where charging could get stuck repeatedly starting and stopping when using a non-recommended charger.
• Battery level reading and power handling were improved, so the reported charge level is more accurate and jumps around less.
• Fixed the battery status LEDs sometimes staying on too long when turning the device off.

Device behavior

• LED behavior was improved, including a fix where temporary LED indications did not always return the LEDs to their normal state afterwards.
• Fixed handling of motor and leadscrew settings used by the maintenance routines, so those functions behave correctly on all units.
• Device status reporting to the app was expanded, giving the app a more complete picture of what the device is doing.

Stability

• The device does less unnecessary background work after starting up, which frees up resources for normal operation.
• Device configuration data is now stored and recovered more robustly, reducing the risk of settings being lost.
• Internal groundwork for future products.

File Change Summary

• 164 files changed. 27,876 insertions. 4,619 deletions

Rollout

Available now as opt-in for devices on the staging environment, rolling out to staging devices over the next few days. Production usually follows a few days later — the release then becomes available as opt-in for everyone and is gradually rolled out to all users over the next 3–4 weeks.

This post was generated with AI assistance.

Connectivity fixes

• Fixed a bug that could cause Legacy Bluetooth to crash when switching away from Legacy BT online mode.
• Fixed a Bluetooth crash affecting some devices.
• Increased the Legacy Bluetooth stack size to reduce stack overflows and improve stability.
• Updated underlying Espressif platform components for improved compatibility and maintenance.

Script and timing improvements

• Made small adjustments to HSP behavior.
• Fixed an issue where the device could stop while adjusting time.
• Fixed a clock resync issue that could cause scripts to drift further out of sync after resynchronization.

Hardware and sensor updates

• Added support for V02 hardware.
• Added support for newer Oh PCB variants.
• Improved the driver used on Oh devices.
• Fixed legacy temperature handling.
• Fixed the legacy temperature driver.

Input and actuator stability

• Reverted debounce settings to restore the previous button timing behavior.
• Fixed a rare LRA pattern activation issue that could cause the actuator control path to block.

General reliability

• Removed unused and obsolete code paths as part of a broader cleanup.
• Addressed several low-level stability issues found during review, including memory-allocation handling and task-startup edge cases.

File changes

• 138 files changed, 5515 insertions(+), 7871 deletions(-)

Availability

Firmware 4.2.2 is available for opt-in today and will be gradually rolled out to all users over the next 3 weeks.

This release summary was generated with AI assistance and reviewed for clarity.