edit 14.05.2020: 6.2.3 is back online as v25426, for newer coffeelake cpu's with problems using hardware transcoding (dev/dri present after boot) there is a new videostation that fixes the problem
https://xpenology.com/forum/topic/28321-driver-extension-jun-104b-for-dsm623-for-918/?do=findComment&comment=144918
edit2 02.06.2020: as @richv31 pointed out here
https://xpenology.com/forum/topic/21663-driver-extension-jun-103b104b-for-dsm622-for-3615xs-3617xs-918/?do=findCom
there is no message like this, its just about stop updating shortly and to open http://find.synology.com to continue
(i still prefer the synolgy assistant)
the driver is not recent (r8125-9.003.05 from 6/2020) so there will be versions that might not work
the old source used in extra.lzma already references to 8125b so its not just that
old driver from 6/2020
r.8125_n.c
static const struct {
const char *name;
u8 mcfg;
u32 RCR_Cfg;
u32 RxConfig