As an example an observation was that most branch_if_zero is followed by an is_eq, is_lt or is_gt or similar. Those opcodes always return 1 or 0. So, two new opcodes, fast_branch_if_zero and fast_branch_if_non_zero were added that map directly to three x86-64 opcodes, there is no need to check the types, do a real pop_stack etc. o Faster hash-function for strings
+ Also siphash24 was added and is used in case the string hash table
Removed features and modules ============================ o Removed facets The optional (and not enabled by default) support for facet classes has been removed, since it was only partially done and not really used. o It is no longer possible to compile pike without libgmp.