@up LG zawsze dawało changelogi tego typu, prawdziwe zmiany w wersji v30c od niezawodnego xpirta:
wifi: I can say that wifi has got some really big changes code-side, that means LG continues to improve it and that's good.
sim contacts: SimContacts.apk removed and changed some codes in framework, probably fixes our sim contacts issue but as I haven't tested it yet I can't say that for sure.
fm radio: changed the way it handles it, same as LG V10 latest base.
audio: here too lots of changes and improvements code-side.
heap minfree value: reduced from 4m to 2m (reduces lag?)
removed also fastdormancy.apk and xdivert.apk.
probably these have been significally improved, but again, almost all system has been improved and all codes have been synced with the ones from LG V10 latest base (almost same exact codes).. that means also more codes from UX 5.0 too
last thing to say is that this update is bigger than the one from v20 to v21, probably thanks to the google security fixes too.