Structural evolution since BGL?

[dabrahams]

I'm interested in generic graph libraries for Swift; there are several, but they don't seem to have learned from the Boost Graph Library; I might try to coax them along, or might try to write something myself. This library I know was written by people familiar with the BGL (hi @lums658!) and I assume newly-discovered truths have been incorporated—I don't mean things at the language level, obviously, but fundamental things about how to address the graph domain generically. I'd like to get an idea of what those new truths might be.

Thanks,
Dave