revset: changed last implementation to use lazy classes Instead of using getitem just reverse the revision list and get the first 'lim' elements. With classes like spanset which are easily reversible this will work faster. Performance Benchmarking: $ time hg log -qr "last(all())" ... real 0m0.569s user 0m0.447s sys 0m0.122s $ time ./hg log -qr "last(all())" ... real 0m0.215s user 0m0.150s sys 0m0.063s