I’ve been running Home Assistant for about a year now and always installed every update as soon as it’s released and never had any issues at all.
Yesterday some time in either the zwave js 15.6.0 or core 2025.6.0 update (I am too complacent and did them both in quick succession without testing anything) I lost my Zooz 800 zwave controller. Reloading HA didn’t bring it back. I had unplug and replug the Zooz USB stick and then reload again.
Not a big deal, just sharing FYI.
Are you sure this wasn’t an OS issue? Do you use the USB device id (by-id) to access it, because serial port assignments can change.
It seemed to be a hardware issue - the blue light on the controller was out until I removed and replaced it. It’s too much of a coincidence for me though that I just happened to have this hardware issue at the time when the software that uses that hardware was being updated.
I use Vendor/Product ID to access it:
# lsusb Bus 002 Device 005: ID 10c4:ea60 Silicon Labs CP210x UART Bridge Bus 002 Device 004: ID 051d:0002 American Power Conversion Uninterruptible Power Supply Bus 002 Device 006: ID 1a86:55d4 QinHeng Electronics 800 Z-Wave Stick ... <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x1a86'/> <product id='0x55d4'/> </source> <address type='usb' bus='0' port='1'/> </hostdev>