It's been a while since 2.0, and batteries has had a bunch of improvements that should be shared with a wider audience.

More features, more bugfixes, more batteries.

Thanks to the *many* contributors in this release; batteries exists because of you.

Changelog:

Added:

Array.{avg,favg,singleton},

Bigarray.of_enum,

Hashtbl.{modify,modify_def,modify_opt,map_inplace,filter_inplace,filter_opt_inplace},

IMap.{modify,modify_def,modify_opt}, LazyList.lazy_fold_right,

List.{singleton,unfold,min_max,modify,modify_dep,modify_opt, span, nsplit, group_consecutive},

Map.modify_opt (*3),

MultiMap.modify_opt (*3),

MultiPMap.modify_opt (*3),

Option.{default_delayed , map_default_delayed},

Set.find, Set.Incubator.op_map,

String.rev,

Substring.{equal,contains,iteri,enum}

Fixed:

Compilation with Ocaml 4.01

Speedup in LazyList.append

More organized magic for fast list snoc

Speedup in String.{replace,nreplace}

Cleanup int32.[un]pack exceptions

Fix last bit access in BatBitSet

Float.round corner case on predecessor of 0.5 fixed

Fix Enum.concat's clone implementation

Fix List.n_cartesian_product to allow empty input

Fix BatText.rfind's index calculation

Improve Pervasives.undefined to be curry-able

Array.backwards doesn't clone array anymore

Remove useless allocation in Splay.cfind

More unit tests, benchmarks