From 1.3.0 to 1.3.1
Changed U10 from Winbond W25X40CLUXI to Macronix MX25R8035FZUIL0
Changed SW1 and SW2 from MTA2-WNC-V-T/R to MTA2-WNC-Q-T/R

From 1.3.1 to 1.5.0:
Changed J1 from Hirose to Murata
Added second battery switch (safety considerations)
Changed reed relay to Hall effect sensor

From 1.5.0 to 1.5.1:
Removed TMP007 sensor due to obsoletion.