Hi!

The new LibBitcoin version that all energy has gone to the past year or
so, how mature for use is it now, as in how much will its interfaces
change and how stable are its internals?

(Or would you rather go with version1 just because of some reason, but
then what's the downside?)

The recommended method for download is git clone
https://github.com/libbitcoin/libbitcoin.git; git checkout version2 ?

Thank you very much!
Mlmikael