From 739dd4412c1af1c170ecdc9b42f427eea89cba2a Mon Sep 17 00:00:00 2001
From: Simon Cruanes <simon.cruanes.2007@m4x.org>
Date: Thu, 1 Apr 2021 22:16:40 -0400
Subject: [PATCH] prepare for 3.3

---
 CHANGELOG.md                  | 25 +++++++++++++++++++++++++
 README.md                     |  6 +++++-
 containers-data.opam          |  2 +-
 containers-thread.opam        |  2 +-
 containers.opam               |  2 +-
 src/core/CCCanonical_sexp.mli |  2 +-
 src/core/CCChar.mli           | 14 +++++++-------
 src/core/CCFormat.mli         |  2 +-
 src/core/CCHashtbl.ml         | 10 +++++-----
 src/core/CCHashtbl.mli        | 20 ++++++++++----------
 src/core/CCList.mli           |  4 ++--
 src/core/CCListLabels.mli     |  4 ++--
 src/core/CCMap.ml             | 12 ++++++------
 src/core/CCMap.mli            | 12 ++++++------
 src/core/CCSeq.mli            |  4 ++--
 src/core/CCSexp_intf.ml       |  6 +++---
 src/core/CCString.mli         |  2 +-
 src/core/CCStringLabels.mli   |  2 +-
 18 files changed, 80 insertions(+), 51 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 63842cdfb..a88542fc8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,30 @@
 # Changelog
 
+## 3.3
+
+- feat: add code-generator for optimal bitfields; add tests
+- new Canonical sexpr module with printer and parser
+
+- CCSeq: Add `for_all` and `exists`
+- feat(sexp): expose last location in decoder
+- feat(CCChar): add CCChar.Infix
+- feat(CCString): add CCString.foldi
+- feat(CCFormat): add `string_lines` combinator
+- feat(CCList): update with regards to `partition_map`
+- add `CCList.cons'`
+- implement {of,add}_*_with family of function in `CCMap` with update (#352)
+- add `CCMap.of_{list,iter,seq}_with` functions
+- add `CCHashtbl.{of,add}_{list,seq,iter}_with`
+
+- Fix integer overflow warning on jsoo (#346)
+- updated fuzzer scripts
+
+### Containers-thread
+
+- refactor(pool): less locking, fix deadlock, more parallelism
+- feat(pool): keep one idle thread
+- small optim in `Pool.sequence_a`
+
 ## 3.2
 
 - add CCEither module
diff --git a/README.md b/README.md
index a979bea87..e1194303d 100644
--- a/README.md
+++ b/README.md
@@ -431,7 +431,7 @@ map =
 - : string option = Some "33"
 ```
 
-### New types: `CCVector`, `CCHeap`, `CCResult`
+### New types: `CCVector`, `CCHeap`, `CCResult`, `CCSexp`
 
 Containers also contains (!) a few datatypes that are not from the standard
 library but that are useful in a lot of situations:
@@ -454,6 +454,10 @@ library but that are useful in a lot of situations:
   It uses the new `result` type from the standard library (or from
   the retrocompatibility package on opam) and provides
   many combinators for dealing with `result`.
+- `CCSexp` and `CCCanonical_sexp`:
+  functorized printer and parser for S-expressions, respectively as
+  actual S-expressions (like `sexplib`) and as canonical binary-safe
+  S-expressions (like `csexp`)
 
 Now for a few examples:
 
diff --git a/containers-data.opam b/containers-data.opam
index 37a7449b1..094d1c44a 100644
--- a/containers-data.opam
+++ b/containers-data.opam
@@ -1,5 +1,5 @@
 opam-version: "2.0"
-version: "3.2"
+version: "3.3"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
 synopsis: "A set of advanced datatypes for containers"
diff --git a/containers-thread.opam b/containers-thread.opam
index 2da1c855c..d24a2e7ed 100644
--- a/containers-thread.opam
+++ b/containers-thread.opam
@@ -1,5 +1,5 @@
 opam-version: "2.0"
-version: "3.2"
+version: "3.3"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
 synopsis: "An extension of containers for threading"
diff --git a/containers.opam b/containers.opam
index 39d567eca..a83f5d15b 100644
--- a/containers.opam
+++ b/containers.opam
@@ -1,6 +1,6 @@
 opam-version: "2.0"
 name: "containers"
-version: "3.2"
+version: "3.3"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
 synopsis: "A modular, clean and powerful extension of the OCaml standard library"
diff --git a/src/core/CCCanonical_sexp.mli b/src/core/CCCanonical_sexp.mli
index 56ec327c3..d3320c0a2 100644
--- a/src/core/CCCanonical_sexp.mli
+++ b/src/core/CCCanonical_sexp.mli
@@ -6,7 +6,7 @@
     See {{: https://en.wikipedia.org/wiki/Canonical_S-expressions} wikipedia}.
     These S-expressions are binary safe.
 
-    @since NEXT_RELEASE
+    @since 3.3
 *)
 
 type 'a or_error = ('a, string) result
diff --git a/src/core/CCChar.mli b/src/core/CCChar.mli
index f0c626c3f..2103b06f8 100644
--- a/src/core/CCChar.mli
+++ b/src/core/CCChar.mli
@@ -40,26 +40,26 @@ val pp : Format.formatter -> t -> unit
 
 (** {2 Infix Operators}
 
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 module Infix : sig
   val (=) : t -> t -> bool
-  (** @since NEXT_RELEASE *)
+  (** @since 3.3 *)
 
   val (<>) : t -> t -> bool
-  (** @since NEXT_RELEASE *)
+  (** @since 3.3 *)
 
   val (<) : t -> t -> bool
-  (** @since NEXT_RELEASE *)
+  (** @since 3.3 *)
 
   val (>) : t -> t -> bool
-  (** @since NEXT_RELEASE *)
+  (** @since 3.3 *)
 
   val (<=) : t -> t -> bool
-  (** @since NEXT_RELEASE *)
+  (** @since 3.3 *)
 
   val (>=) : t -> t -> bool
-  (** @since NEXT_RELEASE *)
+  (** @since 3.3 *)
 end
 
 include module type of Infix
diff --git a/src/core/CCFormat.mli b/src/core/CCFormat.mli
index ec9145a42..85c5b8546 100644
--- a/src/core/CCFormat.mli
+++ b/src/core/CCFormat.mli
@@ -69,7 +69,7 @@ val string_lines : string printer
     place of spaces, unlike {!text}.
     This means an already formatted string can be displayed inside another
     formatter without mangling the indentation.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val char : char printer (** @since 0.14 *)
 
diff --git a/src/core/CCHashtbl.ml b/src/core/CCHashtbl.ml
index a2c470806..ed69ff882 100644
--- a/src/core/CCHashtbl.ml
+++ b/src/core/CCHashtbl.ml
@@ -236,7 +236,7 @@ module type S = sig
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_seq : 'a t -> (key * 'a) Seq.t -> unit
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
@@ -249,7 +249,7 @@ module type S = sig
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_iter : (key * 'a) iter -> 'a t
   (** From the given bindings, added in order.
@@ -261,7 +261,7 @@ module type S = sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_seq : (key * 'a) Seq.t -> 'a t
   (** From the given bindings, added in order.
@@ -274,7 +274,7 @@ module type S = sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_iter_count : int t -> key iter -> unit
   (** [add_iter_count tbl i] increments the count of each element of [i]
@@ -313,7 +313,7 @@ module type S = sig
   (** [of_list l] builds a table from the given list [l] of bindings [k_i -> v_i].
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val update : 'a t -> f:(key -> 'a option -> 'a option) -> k:key -> unit
   (** [update tbl ~f ~k] updates key [k] by calling [f k (Some v)] if
diff --git a/src/core/CCHashtbl.mli b/src/core/CCHashtbl.mli
index 43c79ee28..7a26b7906 100644
--- a/src/core/CCHashtbl.mli
+++ b/src/core/CCHashtbl.mli
@@ -78,7 +78,7 @@ module Poly : sig
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_seq : ('a,'b) Hashtbl.t -> ('a * 'b) Seq.t -> unit
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
@@ -91,7 +91,7 @@ module Poly : sig
   (** Add the corresponding pairs to the table.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_iter : ('a * 'b) iter -> ('a,'b) Hashtbl.t
   (** From the given bindings, added in order.
@@ -103,7 +103,7 @@ module Poly : sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_seq : ('a * 'b) Seq.t -> ('a,'b) Hashtbl.t
   (** From the given bindings, added in order.
@@ -116,7 +116,7 @@ module Poly : sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_iter_count : ('a, int) Hashtbl.t -> 'a iter -> unit
   (** [add_iter_count tbl i] increments the count of each element of [i]
@@ -155,7 +155,7 @@ module Poly : sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val update : ('a, 'b) Hashtbl.t -> f:('a -> 'b option -> 'b option) -> k:'a -> unit
   (** [update tbl ~f ~k] updates key [k] by calling [f k (Some v)] if
@@ -251,7 +251,7 @@ module type S = sig
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_seq : 'a t -> (key * 'a) Seq.t -> unit
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
@@ -264,7 +264,7 @@ module type S = sig
   (** Add the corresponding pairs to the table, using {!Hashtbl.add}.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_iter : (key * 'a) iter -> 'a t
   (** From the given bindings, added in order.
@@ -276,7 +276,7 @@ module type S = sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_seq : (key * 'a) Seq.t -> 'a t
   (** From the given bindings, added in order.
@@ -289,7 +289,7 @@ module type S = sig
   (** From the given bindings, added in order.
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_iter_count : int t -> key iter -> unit
   (** [add_iter_count tbl i] increments the count of each element of [i]
@@ -328,7 +328,7 @@ module type S = sig
   (** [of_list l] builds a table from the given list [l] of bindings [k_i -> v_i].
       If a key occurs multiple times in the input, the values are combined
       using [f] in an unspecified order.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val update : 'a t -> f:(key -> 'a option -> 'a option) -> k:key -> unit
   (** [update tbl ~f ~k] updates key [k] by calling [f k (Some v)] if
diff --git a/src/core/CCList.mli b/src/core/CCList.mli
index 17902aa19..0187304a6 100644
--- a/src/core/CCList.mli
+++ b/src/core/CCList.mli
@@ -43,7 +43,7 @@ val cons_maybe : 'a option -> 'a t -> 'a t
 val cons' : 'a t -> 'a -> 'a t
 (** [cons' l x] is the same as [x :: l]. This is convenient for fold
     functions such as {!List.fold_left} or {!Array.fold_left}.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val (@) : 'a t -> 'a t -> 'a t
 (** [l1 @ l2] is like [append l1 l2].
@@ -236,7 +236,7 @@ val partition_map_either : ('a -> ('b, 'c) CCEither.t) ->
 (** [partition_map_either f l] maps [f] on [l] and gather results in lists:
     - if [f x = Left y], adds [y] to the first list.
     - if [f x = Right z], adds [z] to the second list.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val partition_filter_map : ('a -> [<`Left of 'b | `Right of 'c | `Drop]) ->
   'a list -> 'b list * 'c list
diff --git a/src/core/CCListLabels.mli b/src/core/CCListLabels.mli
index 0d9891e62..7e6318f41 100644
--- a/src/core/CCListLabels.mli
+++ b/src/core/CCListLabels.mli
@@ -42,7 +42,7 @@ val append : 'a t -> 'a t -> 'a t
 val cons' : 'a t -> 'a -> 'a t
 (** [cons' l x] is the same as [x :: l]. This is convenient for fold
     functions such as {!List.fold_left} or {!Array.fold_left}.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val cons_maybe : 'a option -> 'a t -> 'a t
 (** [cons_maybe (Some x) l] is [x :: l].
@@ -240,7 +240,7 @@ val partition_map_either : f:('a -> ('b, 'c) CCEither.t) ->
 (** [partition_map_either ~f l] maps [f] on [l] and gather results in lists:
     - if [f x = Left y], adds [y] to the first list.
     - if [f x = Right z], adds [z] to the second list.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val partition_filter_map : f:('a -> [<`Left of 'b | `Right of 'c | `Drop]) ->
   'a list -> 'b list * 'c list
diff --git a/src/core/CCMap.ml b/src/core/CCMap.ml
index 3c66b923d..239ac76ec 100644
--- a/src/core/CCMap.ml
+++ b/src/core/CCMap.ml
@@ -77,7 +77,7 @@ module type S = sig
   val add_seq_with : f:(key -> 'a -> 'a -> 'a) -> 'a t -> (key * 'a) Seq.t -> 'a t
   (** [add_seq ~f m l] adds the given seq [l] of bindings to the map [m],
       using [f] to combine values that have the same key.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_seq : (key * 'a) Seq.t -> 'a t
   (** [of_seq seq] builds a map from the given [Seq.t] of bindings.
@@ -91,7 +91,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the seq than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_iter : 'a t -> (key * 'a) iter -> 'a t
   (** [add_iter m iter] adds the given [iter] of bindings to the map [m].
@@ -101,7 +101,7 @@ module type S = sig
   val add_iter_with : f:(key -> 'a -> 'a -> 'a) -> 'a t -> (key * 'a) iter -> 'a t
   (** [add_iter ~f m l] adds the given iter [l] of bindings to the map [m],
       using [f] to combine values that have the same key.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_iter : (key * 'a) iter -> 'a t
   (** [of_iter iter] builds a map from the given [iter] of bindings.
@@ -114,7 +114,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the iter than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val to_iter : 'a t -> (key * 'a) iter
   (** [to_iter m] iterates on the whole map [m], creating an [iter] of bindings.
@@ -133,7 +133,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the list than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_list : 'a t -> (key * 'a) list -> 'a t
   (** [add_list m l] adds the given list [l] of bindings to the map [m].
@@ -142,7 +142,7 @@ module type S = sig
   val add_list_with : f:(key -> 'a -> 'a -> 'a) -> 'a t -> (key * 'a) list -> 'a t
   (** [add_list ~f m l] adds the given list [l] of bindings to the map [m],
       using [f] to combine values that have the same key.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val keys : _ t -> key iter
   (** [keys m] iterates on the keys of [m] only, creating an [iter] of keys.
diff --git a/src/core/CCMap.mli b/src/core/CCMap.mli
index 5b3a66b9a..76bfa18e8 100644
--- a/src/core/CCMap.mli
+++ b/src/core/CCMap.mli
@@ -87,7 +87,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the seq than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_seq : (key * 'a) Seq.t -> 'a t
   (** [of_seq seq] builds a map from the given [Seq.t] of bindings.
@@ -101,7 +101,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the seq than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_iter : 'a t -> (key * 'a) iter -> 'a t
   (** [add_iter m iter] adds the given [iter] of bindings to the map [m].
@@ -114,7 +114,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the seq than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val of_iter : (key * 'a) iter -> 'a t
   (** [of_iter iter] builds a map from the given [iter] of bindings.
@@ -127,7 +127,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the iter than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val to_iter : 'a t -> (key * 'a) iter
   (** [to_iter m] iterates on the whole map [m], creating an [iter] of bindings.
@@ -146,7 +146,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the list than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val add_list : 'a t -> (key * 'a) list -> 'a t
   (** [add_list m l] adds the given list [l] of bindings to the map [m].
@@ -158,7 +158,7 @@ module type S = sig
       If a key occurs several times, all its bindings are combined using the
       function [f], with [f key v1 v2] being called with [v1] occurring
       later in the seq than [v2].
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   val keys : _ t -> key iter
   (** [keys m] iterates on the keys of [m] only, creating an [iter] of keys.
diff --git a/src/core/CCSeq.mli b/src/core/CCSeq.mli
index aeefa30ba..77ae4ff02 100644
--- a/src/core/CCSeq.mli
+++ b/src/core/CCSeq.mli
@@ -131,14 +131,14 @@ val for_all : ('a -> bool) -> 'a t -> bool
     predicate [p].  That is, it returns [(p a1) && ... && (p an)] for a
     non-empty list and [true] if the sequence is empty.  It consumes the
     sequence until it finds an element not satisfying the predicate.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val exists : ('a -> bool) -> 'a t -> bool
 (** [exists p [a1; ...; an]] checks if at least one element of the sequence
     satisfies the predicate [p]. That is, it returns [(p a1) || ... || (p an)]
     for a non-empty sequence and [false] if the list is empty.  It consumes the
     sequence until it finds an element satisfying the predicate.
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 val flat_map : ('a -> 'b t) -> 'a t -> 'b t
 
diff --git a/src/core/CCSexp_intf.ml b/src/core/CCSexp_intf.ml
index e4bc206cb..c0b1db183 100644
--- a/src/core/CCSexp_intf.ml
+++ b/src/core/CCSexp_intf.ml
@@ -4,7 +4,7 @@ type 'a iter = ('a -> unit) -> unit
 type 'a gen = unit -> 'a option
 
 (** {2 Abstract representation of S-expressions}
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 module type BASIC_SEXP = sig
   type t
 
@@ -126,7 +126,7 @@ module type S = sig
 
   type loc
   (** Locations for the S-expressions.
-      @since NEXT_RELEASE *)
+      @since 3.3 *)
 
   (** {2 Parsing} *)
 
@@ -156,6 +156,6 @@ module type S = sig
     (** Last location for the decoder. In particular,
         after calling {!next}, this gives the location of the last token
         used in the result, which is useful in case of error.
-        @since NEXT_RELEASE *)
+        @since 3.3 *)
   end
 end
diff --git a/src/core/CCString.mli b/src/core/CCString.mli
index d27c0b134..2f0b9c0d4 100644
--- a/src/core/CCString.mli
+++ b/src/core/CCString.mli
@@ -37,7 +37,7 @@ val fold : ('a -> char -> 'a) -> 'a -> t -> 'a
 val foldi : ('a -> int -> char -> 'a) -> 'a -> t -> 'a
 (** [foldi f init s] is just like {!fold}, but it also passes in the index of each chars
     as second argument to the folded function [f].
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 (** {2 Conversions} *)
 
diff --git a/src/core/CCStringLabels.mli b/src/core/CCStringLabels.mli
index 4b7cf55ba..757bd6495 100644
--- a/src/core/CCStringLabels.mli
+++ b/src/core/CCStringLabels.mli
@@ -37,7 +37,7 @@ val fold : f:('a -> char -> 'a) -> init:'a -> t -> 'a
 val foldi : f:('a -> int -> char -> 'a) -> 'a -> t -> 'a
 (** [foldi ~f init s] is just like {!fold}, but it also passes in the index of each chars
     as second argument to the folded function [f].
-    @since NEXT_RELEASE *)
+    @since 3.3 *)
 
 (** {2 Conversions} *)