What has changed

2.4.4

Released September 2026

Autoterm Air 4D heaters are now supported. The panel detects whether it is connected to an Air 2D or an Air 4D automatically - no setting needed.

A wireless module that goes away no longer slows down every other module. When a paired module stops responding - because it has been unplugged, taken out of range, or switched off - the panel now waits progressively longer between reconnect attempts rather than trying every few seconds all day. After three missed attempts it waits 30 seconds, then a minute, then two, then four, and after that checks roughly once every five minutes. The moment the panel hears the module advertising again it reconnects straight away.

The available wireless devices list fills live. On the Wireless Options page (in Installer Settings), the Available Wireless Devices box now shows modules as they come within range - without needing to tap Scan.

Battery history on the SavvyShunt is more reliable. History is now optimised for quicker displays. Existing history carries across automatically on the first start after updating. The day view now shows a rolling 24-hour window rather than the current calendar day.

Fixes

• A module believed to be connected after a wireless adapter reset now drops the stale link and reconnects within 30 seconds, instead of staying shown as connected until the panel restarted.
• A module that dropped out shortly after connecting because of a weak signal no longer causes other devices to stall.
• The Reset History button on Battery Settings (shunt view) now matches the same button on the direct-battery view. Previously it was labelled Clear Graph.
• On 24V Autoterm installations, the heater’s supply voltage now reads correctly. Previously it decoded incorrectly, causing false low-voltage faults on 24V systems.

2.4.0

Released September 2026

Electric-only Propex heaters are now supported. If your van has a Propex heater running on electricity rather than gas, you can now choose Propex (electric only) in Heater Settings and control it from the panel.

Batteries with a PIN are now unlocked directly on the panel. If your Sky Energi, Titan or Fogstar battery is locked with a passcode, the panel asks for it the first time you pair the battery and remembers it afterwards. You no longer need to remove the password from the battery before pairing.

WiFi on mesh networks is much more reliable. Moving between access points on a multi-router site no longer drops the panel’s network address. The handoff now completes in under a second rather than losing connectivity for four to five seconds at a time.

Fixes

• Light presets now save to storage immediately. Previously they were held in memory and could be lost on a reboot if nothing else happened to trigger a save in between.
• Recalling a preset and then adjusting any light no longer overwrites the stored preset values.
• The main screen now redraws correctly when you navigate back to it after removing a wireless device from the device list.
• The SavvyShunt now follows the same wireless reconnect back-off as every other wireless device. Previously it had its own retry loop with no back-off, hammering every 17-30 seconds if the shunt was switched off or out of range.

2.3.14 and 2.3.15

Released July 2026

Starlink integration. The panel now talks to a connected Starlink router, with a page showing signal status and data usage - so you can keep an eye on your internet without leaving the unit.

Update from the notification. When an update is available, the notification now carries an Update Now button. No digging through settings.

Better remote support. More useful information reaches us when you report a problem, so we can pinpoint issues faster and confirm when a fix has already gone out.

A page for the mobile app. Reachable from a link in the top bar, which changes colour so you can see the state at a glance - grey for offline, orange for connected, green when your phone is paired. The pairing QR code lives permanently on this page, and you can reset the pairing or switch the phone connection off entirely if you would rather save the power. The app is still in testing, so this page is only there for people on the beta programme.

Notifications have moved into the settings menu on the top left, which gives the top right of the screen a bit more room.

Faster online/offline status, so what is on screen matches reality sooner.

Performance

• Boots faster and feels more responsive throughout.
• Background improvements to memory handling and internal communication.

Fixes

• Tidied how the heater appears on the tile home page.
• Corrected buttons keeping their old colours after a theme change.
• Fixed a display issue so tank status always reads correctly.
• Addressed several causes of unexpected restarts and unresponsiveness.
• Wireless devices now disconnect reliably when you ask them to.
• Corrected gas solenoid toggling, including on bespoke installations.
• Lighting presets now load every light correctly.
• Tidied the WiFi page so confirmation pop-ups display cleanly.
• Custom icons sharing a name with a built-in icon now behave.
• Clean boot splash screen, free of stray graphics.
• Battery readings display correctly on the battery page again.

2.3.13

No update - we were too superstitious.

2.3.11 and 2.3.12

Released May 2026

• New keyboard.
• Gradient buttons, and an improved gradient top bar.
• Date and time settings moved into Display & Sound.
• You can now set the screen timeout yourself.
• New WiFi connection page with proper feedback, the ability to reset the WiFi adapter and settings, a search function, and signal strength shown while scanning.
• Search added to the wireless device list.
• Propex temperature dial renders quickly.
• Improved screen wake.
• Reduced background logging traffic.
• Update notification when a new version is available, and update attempts blocked while offline.
• Communication channel reconnects after a network drop, and wireless copes better with poor connections.
• SavvyLights preset optimisation, with light controls running in the background for a snappier interface.
• Fixed Roamer trickle-charge reporting contradictory values.
• Keyboard optimisations.
• Improved upgrade path, to prevent upgrade failures.
• Improved initial tank setup.
• Fixed duplicate LPG tanks.
• App connectivity improvements for beta testing.

2.3.10

Released April 2026

• Improved handling of wireless disconnect events.
• Optimised lights page.
• Fixed serial management.
• Fixed the Batmon charge-time calculation.
• iPhone hotspot reliability improvements.
• Numerous test-suite improvements.

2.3.8

Released March 2026

• Correct fan icon on the Propex page.
• Gas heater improvements, and tightened heater settings handling.
• Improved momentary-switch behaviour.
• Update check improvements.
• Fixed the wireless menu displaying incorrectly within user settings.
• Battery shunt capacity and offset improvements.
• Friendly handling of image errors.
• Tanks page reloads with the correct device state.

2.3.5 to 2.3.7

Released February 2026

• Improved heater messaging.
• Switch states forwarded over the device bus.
• Additional battery fields, and improved battery error handling.
• Responds to the companion app’s health monitor.
• Roamer message optimisation.
• Settings page load failures handled gracefully.
• Default preset count applied, with presets affirmed and retried.
• Logs endpoint updated.
• Wireless relay disabled when unused, and repeated wireless errors optimised.
• Improved LED scenes.
• Continued Propex page work - responsiveness, memory and graphics.
• Voltage presentation updated.
• Tank levels rounded for cleaner display.
• Additional iconography.
• Lights remove-button error handled gracefully.
• Background task scheduler hardened against duplicate jobs.
• Propex settings update the device configuration in real time, and schedule entries are added automatically.
• Toggle text overflow prevented.
• Reduced logging.
• The page task manager handles multiple devices connecting at once.

2.3.3 and 2.3.4

Released January 2026

• Configuration save improvements.
• Faster update downloads.
• Updated logger.
• Wireless relay disabled when not in use.
• Water heater controls optimised.
• File reorganisation.
• CBE PC100 supported (trade only), and onboard senders moved to the internal device bus.

2.3.2

Released December 2025

• Improved handling of a disconnected Batmon, and graceful handling of a disconnected Tanks V2.
• QR code generator updated; mobile pairing QR toggle set; companion app QR moved to the additional settings page, and the correct companion app URL set at start-up.
• Wireless service extracted from the device bus, with improved logging.
• Request and response type encoding hardened.
• Fixed a crash in some scenarios.
• Reduced Roamer chirping.

2.3.1

Released November 2025

• Settings page no longer loses state during a save.
• Light indicators sync with light statuses at start-up.

2.3.0

Released November 2025

• Rewritten wireless stack for Propex V2, BMS devices and Roamer.
• New lights page with toggle, off/value/on, and presets.
• Battery improvements: shunt online indicator, watts as a whole number, secondary battery support, JBD and Batmon battery graphs, and recovery from history corruption.
• Settings page now unloads cleanly.
• Replay service handles empty objects.
• Top bar icons update and function correctly.
• Light adjuster correctly shows off when a preset sets it to 0%.
• Roamer refreshes every 30 seconds.
• Rewritten temperature sensors - centred, with the water heater displayed.
• Wireless manager scheduling fix, improved performance and a simplified connection reset.
• Fogstar pattern-matching update, MQTT update, and a tank-reading swap fix.
• New log-sending mechanism, and a health-check service.
• Propex page no longer rebuilds the tank widget on refresh, no longer shows the tank offline after a single failed read, and handles null characteristic responses.