In addition to the Libya update (and maybe others that I did not notice...) these were added:

BL - Saint Barthélemy
GG - Guernsey
IM - Isle of Man
JE - Jersey
ND - United Kingdom / Northern Ireland
SS - South Sudan
XK - Kosovo

If someone has time to design these in the same style as the others, I can bring back the old set, even if I like the fact that the new ones respect the ratios of the flags.

Some others should still be added : Sint Maarteen (and possibly Saint Martin) & Curaçao
I didn't add these because Sint Marteen uses SX as code, which I already used for Scotland, so it is annoying