I`ve upgrade from 380.57 to 380.57.1 and now to 380.57.2 on my RT-AC68 without clearing NVRAM (it`s one tree). My configuration: TFTP-server, Samba/WINS-server, pixelserv, sftp, syslog-ng, upsd/upsmon, udpxy *it`s strange but udpxy from HGGomes out of box don`t work*, transmission, and debian with motion and some codecs (for USB webcam) works without ritual dances. Anyway there is backup/restore utility for NVRAM settings/JFFS and it works after clearing NVRAM/JFFS. It seems that HGGomes forks of Merlin firmware more interesting it has much stronger WiFi (it`s useful for big apartment), and some additional useful features and it don`t seriously breaks source code cause migration from-to succeed without problems.So i just installed 380.57.1 and now i see .2 is out! Anyone knows if simple f/w upgrade will work or does it require the reset/reconfig process?