Release 3.9

Late winter release

More refinements of the updater & upgrades, major distribution update by migrating to the latest stable version of Debian for the underlying OS.

Notable server side changes

• API now returns trigger severity as intended
• API had it's logging overhauled, together with other lint and CI fixes
• Submit now correctly discards data older than ARCHIVE_DAYS rather than causing errors for the devices trying to catch up with very old data.
• Submit had it's logging rewritten
• The first part of a major refactoring of the submit code has landed, more to come
• Submit now automatically syncs with Afase for device configuration

New Hardware support

• Changes for Regin Corrigo Heating, adding new groups
• Support for WTR10 E meters

On device changes

• New OS release
• Improvement around ipv6+ipv4 configurations around errors (Happy Eyeballs)
• Partial rewrite of the software updater
• Support for multi-homed network devices. Having multiple networks & routes on the devices