V6.1 and 6.1.1 are electrically identical; the only difference is the addition of fiducials on 6.1.1, which is only used for pick n place machines. If you don’t know what that is, you don’t have to worry about it
Comparing that BOM with "Pick Place for BlueSaab_v6.1.csv", it looks like the following parts were excluded: various pin headers (which is no problem as they're a common consumable part), a TE Connectivity AMP 827229-1 12-pin power header, and a Samtec SLW-106-01-T-S board-to-board connector for the FTDI port. I also noticed a P/N change for D4: SZNUP2105LT3G (per the pick place file) vs. SM24CANB-02HTG (per BOM); the latter having a high clamping voltage.
The other thing I noted about the BOM is that the actual quantities needed for the SMD resistors (at indices 27 through 30) are less than the 10 ea. shown.
Seth or Karlis: could you kindly post the 6.1 electrical schematic to the "Hardware/PCB and SCH files" section? I find a schematic to be immensely useful for performing pre-power continuity and isolation checks and powered voltage checks, as well as insight as to how you chose to implement the various pin-level configuration options of the STM32, RN32, etc. in the board design.