I think there's no need for CONFIG_LOWBITDEPTH=0 builds, with CONFIG_LOWBITDEPTH=1 the appropriate codepaths are selected automatically based on input and output bit depths.
Today's build:
av1-1.0.0-629-g7b9ddd4bf:
https://mega.nz/#!cg5njRjA!WZkuEg2g7...vEcCgQL5_vRMY8
Cautionary note: the issues tracker has been populating quite fast the last couple of days, so there's a chance this is not the most stable build to work with.
I have just finished a series of encodes that took all week , so I'll be able to try it and report back if anything nasty happens.
Also, some coding features have been
temporarily disabled for row-mt to accomodate some corner cases
Silver lining: the code is being modified to enable easier debugging of threading related issues, so maybe we'll see some newfound stability on that front in the coming days/weeks