v103
- changed IC14 to TSSOP20 ( JLC out of stock for SOIC20 )
v104
- changed BOM & PCB for other Heatsink
v104a
- changed BOM IDC connector from #C5665 to #C492442
v104b
- changed BOM (replacement parts): K2..K5,IC14, IC15, D1..D3, Blue LEds now red
- Gerber: corrected version number
v104e
- changed BOM&CPL added TL783CKCSE3, replaced parts out of stock
v105
- Gerber: corrected Layout for SD card holder J3
v106
- changed Heatsink GEH1 to https://jlcpcb.com/partdetail/Xsd-35_1225/C4663
v107
- better fittings for edge connectors A3J5 & A3J6
- added S8 (reset)
v107a
- BOM & CPL changed (replacement parts)
v107b
- BOM Heatsink changed to C4663
Gerber v108
- adjusted pad apertures for C14, C10, and R16 
v108a
- BOM LM2576-5.0 changed to C194472
v108b
- BOM changed D1,2,3 to available part
v108C
- BOM changed CR1 to #C411176
- BOM S5 to #C129062
--- BOM 108d ----
C10 changed to #C167119
K6 changed to #C7499369
--- BOM 108e ----
K6 changed to #C124423

Preorder:
- 74HC154