Lots of bugfixes, lots of improvements, build fixes, you name it.
And in a complete departure from BFS, a git tree (which suits constant development like this, unlike BFS's stable release massive ports):
Look in the pending/ directory to see all the patches that went into this or read the git changelog. In particular numerous warnings were fixed, throughput improved compared to 108, SCHED_ISO was rewritten for multiple queues, potential races/crashes were addressed, and build fixes for different configurations were committed.
I haven't been able to track the bizarre latency issues reported by runqlat and when I try to reproduce it myself I get nonsense values of latency greater than the history of the earth so I suspect an interface bug with BPF reporting values. It doesn't seem to affect actual latency in any way.
EDIT: Updated to version 0.111 which has a fix for suspend/resume.