Unless it says fix for 5.1 it won't be considered a blocker
for the release. As it stands there is one outstanding
open blocking bug (1172) and a handful of resolved but not closed bugs.
I think the priorities are significant even though we have pushed the fix for out to the next release.
I was actually putting on my PR hat - thought it might reflect poorly to issue a new release with bugs listed as high priority or major, when they are in fact neither. But that's cool - I look silly in that hat anyway.