Hi guys, I can confirm a successful install of DSM 6.2 on a new HPE Proliant MicroServer Gen 10 Plus (configuration P16006-421 with the Xeon E-2224 processor and 16Gb RAM).
I have used Jun's loader 1.04b for the DS918+ model and I must say it was pretty straight forward! Now even running DSM 6.2.3-25426 without issues.
The hardest part was making a bootable USB stick on my Mac (I have no Windows machine). If you don't want to manually type commands in Terminal and risk erasing your harddrive (!) you can use this free OSX app to transfer the synoboot.img onto your USB device: http://www.keka.io
In my particular case, I found myself stuck with a bricked Synology DS415+ and really needed to recover some of my files from the 4 Synology Hybrid Raid-formatted disks. The unit died because of a well-documented Intel Atom C2000 flaw in the chip on the motherboard (Google 'the horror' yourself if you like). After unsuccessfully trying to fix it, I decided to give xpenology a go because I really did not want to invest in any more bad hardware from Synology (but I do love their OS and apps).
The MicroServer automatically booted from the USB loader in one of the front USB ports, the new diskstation was recognized in my network, I installed the latest DSM from Synology (6.2.3, that was actually a bit of a gamble), shut the server down, put the 4 drives into the MicroServer and after a reboot Synology asked for permission to migrate systems (DS415+ to DS918+). It all went very smooth and I must say I now have a Synology on steroids. The performance of Plex Media Player for example has improved so much! No more waiting or choppy transcoding, this thing just flies! I now enjoy the benefits of a great Synology interface running on reliable HP hardware. I currently only use it as a file server (12Tb in raid gives me 9Tb) and for media streaming (a VPN on the Synology hides the torrent activity). So far so good...
After all of this I did disable auto-update of DSM and yes, I did manage to offload and save all my valuable data from the disks.