As new versions of firmware are released, the release notes will be updated below.

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v1.41

• Fixed low voltage behaviour for older devices

v1.40

• Added an AutoAPN entry.

v1.39

• Improved low battery voltage behaviour

v1.38

• Completed third party server support
• Added geofence functionality

v1.37

• Updates to gsm

v1.36

• Added SMS support for resetting the external server (#*,DSERVER)

v1.35

• External server support
• Encryption support
• High-G event support
• More flexible tamper detect settings (can now disable to save power)

v1.34

•  Fix for EMU_110 errata, which caused occasional reboots during wake up on a very small number of devices.

v1.33

• When GSM debugging set to INFO, and MultiAPN specified, log network MCC MNC in RSSI message.
• When Control debugging set to INFO, log time to successful network registration.
• If GPS wander suppression is active, and device has not moved, previous fix is logged with an updated time.
• Expose recovery mode parameters.

v1.32

• To aid production testing, version info is sent out the debug serial port on startup: Product ID, Hardware Revision, Firmware Major and Firmware Minor

v1.31

• Parameterised upload timeouts/retry limits: time to network registration; complete session time; retry limit.
• Updated device stats message log reason.
• New AutoAPN entries.
• Recovery mode timeout option.

v1.30

• Fixed wakeup loop if HES board fitted and batteries inserted outside of GPS and GSM coverage
• Disabled SIM detection switch, for robustness
• Added detection of clock and flash startup issues

v1.29

• Updated Aeris AutoAPN entry
• Added new device stats message. Added max temperature and initial battery voltage stats.
• UE910 12.00.428 lower case 'at' handling

v1.28

• Added new AutoAPN entries for US
• Updates to RTC BSP
• Unused LFRCO disabled in main firmware for a neglible power saving
• Power saving fix - idle core during accelerometer debounce
• Improved i2c error handling

v1.27

• Changed GPS wander filter range and defaulted to off
• Fixed bug in jostle tracking mode. ~1mA battery drain in-trip if logging was increased from the default.
• Increased maximum accelerometer threshold from 3x63mG to 8x63mG, improved error resilience

v1.26

• Fixed heartbeat timing bug that could extend the heartbeat period by up to 100%
• Sped up changes to and from AutoAPN
• Added RTC polls to the accelerometer wake count in gps tracking mode
• Updated to EFM32 pack 1.4

v1.25

• Added distance filtering to Upload On Jostle
• Removed Upload On Jostle support from Periodic Only tracking mode
• Added accelerometer wakeup trace for debugging

v1.24

• Reduced software jostle sensitivity, linked to hardware sensitivity parameters and exposed
• AutoAPN validation fix
• Fixed corner case in GPS tracking that may have defeated fix timeout in rare circumstances

v1.23

• LED feedback on tamper transition

v1.22

• Tamper detect support

v1.21

• Sim pin change support
• Improve recovery mode filtering
• Better battery stats
• Leap year fix

v1.20

• GSM robustness update (pdp sustain, increased socket timeout)
• Leap year hotfix

v1.19

• Fixed double log in accel based modes
• Improved recovery mode heartbeat accuracy
• Added recovery mode voltage filtering
• Added recovery mode logreasons
• Added GPS freshen parameter
• Added 3GN3G and 3GNAD targets (untested)

v1.18

• Power optimised recovery mode
• Better handling of lost GPS signal in jostle based trips

v1.17

• Revised jostle tracking parameters

v1.16

• GSM robustness improvements
• Alternate aiding data servers, more error handling
• Accel parameter validation
• More LED feedback on first boot
• Relaxed minimum hold on battery level to allow increase for 20%+ discrepancy
• Added jostle upload support for periodic-only mode
• Added jostle based tracking mode

v1.15

• Accelerometer verification, increased bandwidth
• Jostle diagnostics
• Multiple firmware download fix
• 4G support
• Battery indicator fixes

v1.14

• Trip trimming fix

v1.13

• Hotfix release, 1.14 with trip trimming disabled

v1.12

• Trip trimming support
• Battery capacity reset logic
• Upload flag fixes
• Recovery mode
• Additional diagnostics
• GSM bugfixes, modem muxing tweak
• AutoAPN
• Stack checker
• GPS freshen
• Upload on jostle
• Parameters
• Diagnostics in analogs

v1.8

• First release