There haven't been any updates since 2021 or '22.
A while ago, when I was doing a calibration and searched around (Giant acquired it and things seem to have progressed a bit), new firmware came out in April this year. It's said that the content includes improvements related to wake-up, and usability and stability have been improved.
For now, I'm using it satisfactorily.
* When updating, be sure to replace it with a new battery and proceed. The warranty period is probably long over, and if it bricks in the middle, repairs may be difficult.
