1B10 release:
   ir-mmi-FS2026-0500-0067_V2.6.12c3.EX45507-1B10.bin
Change Notes:
   1. add "Medium" level for Backlight standby level. 
   2. add Display timeout settings under Backlight/Standby Mode.
   3. add AUX-in Auto-Standby menu.
   4. add "System Settings" in main menu.
   5. Date format DD.MM.YYYY instead of DD/MM/YYYY. 
   6. For Alarms suggest the current date and time if a new alarm will be configurated.

1RC1 release(MP version):
   ir-mmi-FS2026-0500-0067_V2.6.12c3.EX48453-1RC1.bin
Change Notes:
   1. use Hama's new UI icons.
   2. add "Color Theme" menu in "system settings". 
   3. update SDK to revision 48453.

1RC2 release:
   ir-mmi-FS2026-0500-0067_V2.6.12c3.EX51199-1RC2.bin
Change Notes:
   1. add patch, fix bug German IR station "Deutschlandradio Kultur" cannot be played.
   2. update SDK to revision 51199.
   3. Follow hama¡¯s requirement, add Erp2 for IR/UPnP/Spotify/DAB modes, and Erp2 time changed to 15 minutes.
   4. fix the bug, when ISU upgrade, screen becomes black, nothing shows on it.
   5. set Menu timeout to 30 seconds.

1RC2-2 release:
   ir-mmi-FS2026-0500-0067_V2.6.12c3.EX51199-1RC2-2.bin
Change Notes:
   1. update language tables.
   2. fix bug, FM auto enter standby after 15 minutes.
   3. fix bug, DFU backdoor keys don't work on some units.


1RC3 release,
   ir-mmi-FS2026-0500-0067_V2.6.16c4.EX51834-1RC3.bin
Change Notes:
   update to IR2.6.16 SDK, revision 51834, which has the dedicated Spotify mode.

1RC4 release,
   ir-mmi-FS2026-0500-0067_V2.6.17c4.EX53330-1RC4.bin
Change Notes:
   update to IR2.6.17-3, revision 53330, spotify improved.

2RC5 release,
update to revision 55957, VERSION := 2.6.17c4.EX55957
fix bug, No audio after switching from DAB/FM to Spotify Connect.

2RC6 release,
1. add backlight/standby level/off item.
2. snooze_sleep in one FP key.
3. add 90 and 120 minutes sleep time.
4. FP key board "select" as play/pause.
5. update to IR2.6.19c7, add patch Fix Bugzilla 19869 - Netherland DAB slideshow reboots for Color display. 

2RC7 release,
changed backlight/standby/low level value.

2RC8 release,
1. fix bug, SELECT key on remote can not exit slideshow.
2. add menu for slide show setup, user can set slide show full screen or small image.

2RC9 release,
  increase to 30 presets.
  
2RC10 release,
1. add "backlight/Slumber Mode".
2. update UPnP icons.
3. update friendly name to "DIR3100/3110".
4. fix bug, when USB stick played, can not enter standby after 15 minutes.

2RC11 release,
1. Add new remote control, Enable dual remote controls.

2RC12 release,
1. fix bug, long press skip previous/next keys can not fast forward and backward for old remote control.

2RC13 release,
1. change to use new Spotify Logo.
2. fix bug, can not show DAB mode icon when no slide show.
3. fix bug, when DAB slide show full screen, sometimes screen be refreshed by background color.
4. add "backlight/slumber mode/off" item.