A developer (xpirt) over at XDA forum has shared a system dump of the Android 6.0.1 for the LG G5 H850.
* LG H850 (Global) – v09h
* Android 6.0.1 (MMB29M)
* Build Date: Wed Feb 17 00:09:11 KST 2016
* LG UX 5.0
* Security Patch 2016-02-01
* Pure Stock Odexed
The software version is V09h. Looks that It is a system dump from a LG G5 which is running test firmware v09h – Android 6.0.1 build MMB29M
p/s. The Singapore version of the LG G5 H860 received Software Update on March 25, before its official launch.