As noted by ComTexeStarter there has recently been a new firmware release of v3.02
Consulting the release notes shows no major changes other than a carbon monoxide sensor is now supported, plus some unspecified changes to resolve COM port malfunctions.
All sounds good… but hopefully v4 won’t be far off. I’m not quite sure whether to go to the effort of upgrading but probably will in due course.
More details on the Texecom site here: