1.4.0
- fixed performance bugs in weak hash tables implementation, by back porting some old fixes from OCaml's
Weak module (reported by Edwin Török) - improved equality functions in Hset and Hmap (contributed by Dorian Lesbre)
- a lot of missing functions in Hset and Hmap wrt OCaml's Set and Map, with the notable exception of
to_seq_rev (contributed by Dorian Lesbre)
1.3
- modules Hset and Hmap moved into module Hashcons, to avoid the clash with a module Hmap from another project (patch from Qi LI)
1.2
- fixed bug in Hset (reported by Jan Midtgaard)
1.1
- do not assume anymore that the hash function returns a nonnegative value
1.0, 09/09/2013