Details of current firmware upgrade:

Fixed: Related to recent changes of the CAN driver autopilot would not engage if servos are powered up after EFIS is already running.
Fixed: Typo in menus for servo tests.

Details of previous upgrade to version 1.0.3.0

Fixed: Issue related to autopilot disengaging after some time if multiple MGL servos are selected. This issue was introduced in version 1.0.2.9, related to new CAN bus interface programming for CAN bus support of AHRS and compass.

Details of previous upgrade to version 1.0.2.9

Added: User selection for TAS calculation: Use ambient temperature or standard atmospheric model.
Added: First version to support new SP6/SP7 CAN communications. SP6/7 CAN units will be available in January.
Changed: ETE will now show in minutes:seconds if less than one hour, otherwise hours:minutes as before.
Fixed: Several minor issues related to Interactive flightplan tool.
Fixed: Vertical fonts, normal and transparent modes: Characters wider than 8 pixels where not drawn correctly.
Fixed: Simulator: Vertical edged fonts where not drawn vertical.
Improved: USB Master/Slave error recovery in case of communications interference.
Removed: HITS box size selection in 3D setup menu. Now fixed size: 2000 ft.
Several other minor fixes and improvements.

Details of previous upgrade to version 1.0.2.8

Added new setup item in "Operations setup" to select NTSC video sources. Currently, if a NTSC camera is connected, the bottom few lines of the image shows a repeat of the top. This is caused by the lower number of lines of the NTSC signal when compared with PAL. The new setup uses advanced vertical line interpolation scaling to stretch the image to fit without causing any noticable image artifacts. Please note that when you connect video sources, all sources must be either PAL or NTSC, you cannot mix.

Impoved: The raster map TAWS overlay could result in some ant-aliased lines being drawn "funny" depending on their position in the drawing order. This is caused by a bug in the graphics chip. This has been fixed by using a work-around.

Details of previous upgrade to version 1.0.2.7

Added: TAWS overlay on raster maps (if enabled in setup). Previously this was only available on vector maps.
Added: G-Force setup menu under Instruments setup. This allows setup of display limits, warning limits etc similar to other indicators. Negative G-Forces can be displayed with SP-7 (Previous SP products give absolute, total G-Force regardless of direction).
Added: New support for rounded rectangles (frame, filled and frame filled types). This is a new selection in the DrawPrimitives screen item.
Added: New AOA display component using "feather" display.
Added: Dotted track line on raster maps.

Changed: TAWS tarrain warning on map flashing has been replaced with a steady color display if vector maps are used (using terrain data to make the terrain backdrop). In case of Raster maps the terrain will flash slowly so to allow the underlying map information not to be lost.

Improved: Rendering quality of "analog arc" screen component using subpixel rendering.

Fixed: Plates component could have problems displaying a plate due to a racing condition between GPU and processor. This could lead to the plate flashing briefly before being erased This affected only the plates screen component. The plates viewer in the menu was fine.
Fixed: Previous releases suffered from an ARINC label corruption problem. While this has impoved due to additional measures in previous releases this could still occur on some systems. The root cause of this has now finally been discovered and fixed in the slave processor responsible for ARINC label processing.
Fixed: VPX Pro/Sport have slightly different communications protocol to upgraded VPX-75 used for testing here. This resulted in Pro and Sport units not operating correctly. 

Details of previous upgrade to version 1.0.2.6

This is the first release to officially support Navidata created by Jeppesen JSUM download (Navidata file is created by Jeppesen based on subscription).
Fixed: SD cards formated with FAT32 could not be used in the system. This has now been fixed. It is however recommended that FAT (or FAT16) be used for SD cards that are used for flight data recording as this allows slightly faster disk operation.
Amended: VPX interface mainly with respect to flap and trim functionality, also changed ECB current component to start at "1" rather than "0", similar to other ECB components. Please amend your screen designs accordingly if required.
Improved: Autopilot pitch control in conditions where internal GPS cannot be used and static pressure is used as backup. Also, if external GPS feed is used (such as from G430 or NMEA), internal GPS will still be used for autopilot vertical guidance whenever possible.
Added support for SL40 radio as VHF 2
Added secondary algorithm to assist AP to track altitude to tighter limits in calm conditions
Added black box flight data recorder feed (messages 1,2 and 3 supported at this stage)

Details of previous upgrade to version 1.0.2.5

Fixed bug related to airspaces containing large number of polygon points. This can lead to a serious system lockup. This has been introduced in version 1.0.2.4 due to some changes around airspace data processing. If you have upgraded to 1.0.2.4 please change to 1.0.2.5 even if your system does not appear to be affected.

Added support for up to 8000 active airspaces within a 10x10 degree area around aircraft position (increased from 2000).
Added support for airspaces with a large number of polygon points (previous limit was 400, now 800).

Added support for V0 and V1 V speeds for airspeed tape as well as analog airspead indicator display.

Details of previous upgrade to version 1.0.2.4

Added first release of autopilot yaw axis support using  a third servo (MGL servo only).
Updated some autopilot related interfaces to reflect failed servos etc before engage attempt.
New HSI routines and much improved autopilot coupling allows for smooth changes between navigation sources without autopilot disconnect.

Complete rewrite of communications interface between ARINC processor and main processor to elliminate any chance of corrupted ARINC labels from making it through. Relevant mostly for G430 based installations.
Complete overhaul of internal SPI based communications links between various processors in order to increase performance and high level of data rate handling mainly in support of new CAN interface based pheriperals.

Further improvements of system startup time. Typical system startup from power on now down to about 5 seconds to live display

Changes to ARINC based autopilot interface (for external autopilot based on GPSS feed. Changed from relative to absolute steering.
Please see this document for details on operation and setup.
Please note: The changes to the ARINC AP interface are still experimental. Feedback is appreciated.
Added further options to synthetic vision based heading indications. Now true or magnetic headings, major cardinal headings (NSEW) or numeric tapes, also options on font size. Select in 3D View setup.

Fixed a minor issue on the NMEA RMC output sentence: The ground speed was inserted incorrectly (it is good in the RMB message). 

Added support for Ground proximity warning and flap position over speed warning. See this document for details. 
New sound files to support ground proximity and flap overspeed warnings to be found here.

Ability to import a setupody.dat file into a real EFIS (Note the file must have been exported by a system that has the same software version number).
Moved sound file install into "Installation tasks" menu.
System is now able to support "Whole World" single Navidata file (as available soon through Jeppesen subscription).

Minor work on XRX interface to improve resynchronizing communications (The XRX protocol has no means of synchonizing a message start making this a little tricky).
ILS from SL30 was showing wrong direction. Fixed.
Simulator: Added ability to use any folder or disk as "SD card". The target "SD card" is selected under the "Project" menu. This now permits use of a real SD card similar to a real EFIS if so desired.

Added Radio stack component and default radio stacks to all built in screen. New Radio stack setup menu (enable radio stack items).
Support for V10 radio with full remote control of radio. Note: Please set radio to Flip-Flop frequency selection and "Main+Standby" mode in the radio's setup using the radios own setup menu. The V10 radio needs to be updated to version 170111. Earlier versions of the firmware will not work. Follow this link for the V10 update software.
Please note: Slave systems cannot currently set frequency of radio connected to primary system. In case of a V10, the idea is to wire each EFIS to the radio (serial ports 1 and 2) so you have a fully redundant system.

Some changes to SL30/SL40 interface - EFIS now shows frequency selected on these radios (RX and TX need to be connected).
Many internal changes to navigation source selection mechanisms partly prompted by radio stack functionality.
Improvements to COM Extender initialization (COM extender might not initialize if plugged in after EFIS startup or EFIS startup takes longer than usual).
Minor internal changes to autopilot engage.
Preliminary documentation for radio stack (Text file): Follow this link.