No, the firmware on the IKEA remote itself - there are major changes to fix battery life, Zigbee routers, and to improve the button actions.
The links already posted have details…
# Manual config to enable Zigbee firmware updates
# https://www.home-assistant.io/integrations/zha
zha:
zigpy_config:
ota:
ikea_provider: true # Auto update Trådfri devices
ledvance_provider: true # Auto update LEDVANCE/OSRAM devices
salus_provider: true # Auto update SALUS/Computime devices
#otau_directory: /path/to/your/ota/folder # Utilize .ota files to update everything else
# https://github.com/zigpy/zha-device-handlers/discussions/693#discussioncomment-857274
#custom_quirks_path: /config/custom_zha_quirks/