diff --git a/README.adoc b/README.adoc
index 60ce610..d158824 100644
--- a/README.adoc
+++ b/README.adoc
@@ -25,13 +25,13 @@ To get an overview of sequence, its origins and why it was created,
 you can start with http://cedeela.fr/~simon/talks/sequence.pdf[the slides of a talk]
 I (@c-cube) made at some OCaml meeting.
 
-See https://c-cube.github.io/sequence/api/[the online API]
+See https://c-cube.github.io/sequence/[the online API]
 for more details on the set of available functions.
 
 == Build
 
 1. via opam `opam install sequence`
-2. manually (need OCaml >= 3.12): `make all install`
+2. manually (need OCaml >= 4.02.0): `make all install`
 
 If you have https://github.com/vincent-hugot/iTeML[qtest] installed,
 you can build and run tests with
diff --git a/sequence.opam b/sequence.opam
index a515569..45b873e 100644
--- a/sequence.opam
+++ b/sequence.opam
@@ -1,6 +1,6 @@
 opam-version: "1.2"
 name: "sequence"
-version: "0.11"
+version: "1.0"
 author: "Simon Cruanes"
 maintainer: "simon.cruanes.2007@m4x.org"
 license: "BSD-2-clauses"
diff --git a/src/Sequence.mli b/src/Sequence.mli
index b6a2fdb..bbddc5a 100644
--- a/src/Sequence.mli
+++ b/src/Sequence.mli
@@ -37,7 +37,7 @@ type +'a t = ('a -> unit) -> unit
 type +'a sequence = 'a t
 
 (** {b NOTE} Type [('a, 'b) t2 = ('a -> 'b -> unit) -> unit]
-    has been removed and subsumed by [('a * 'b) t] @since NEXT_RELEASE *)
+    has been removed and subsumed by [('a * 'b) t] @since 1.0 *)
 
 type 'a equal = 'a -> 'a -> bool
 type 'a hash = 'a -> int
@@ -226,7 +226,7 @@ val filter_mapi : (int -> 'a -> 'b option) -> 'a t -> 'b t
 
 val filter_count : ('a -> bool) -> 'a t -> int
 (** Count how many elements satisfy the given predicate
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 val intersperse : 'a -> 'a t -> 'a t
 (** Insert the single element between every element of the sequence *)
@@ -234,15 +234,15 @@ val intersperse : 'a -> 'a t -> 'a t
 val keep_some : 'a option t -> 'a t
 (** [filter_some l] retains only elements of the form [Some x].
     Same as [filter_map (fun x->x)]
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 val keep_ok : ('a, _) Result.result t -> 'a t
 (** [keep_ok l] retains only elements of the form [Ok x].
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 val keep_error : (_, 'e) Result.result t -> 'e t
 (** [keep_error l] retains only elements of the form [Error x].
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 (** {2 Caching} *)
 
@@ -485,7 +485,7 @@ val rev : 'a t -> 'a t
 
 val zip_i : 'a t -> (int * 'a) t
 (** Zip elements of the sequence with their index in the sequence.
-    Changed type @since NEXT_RELEASE to just give a sequence of pairs *)
+    Changed type @since 1.0 to just give a sequence of pairs *)
 
 val fold2 : ('c -> 'a -> 'b -> 'c) -> 'c -> ('a * 'b) t -> 'c
 
diff --git a/src/SequenceLabels.mli b/src/SequenceLabels.mli
index 809c054..0cd7dd3 100644
--- a/src/SequenceLabels.mli
+++ b/src/SequenceLabels.mli
@@ -15,7 +15,7 @@ type +'a t = ('a -> unit) -> unit
 type +'a sequence = 'a t
 
 (** {b NOTE} Type [('a, 'b) t2 = ('a -> 'b -> unit) -> unit]
-    has been removed and subsumed by [('a * 'b) t] @since NEXT_RELEASE *)
+    has been removed and subsumed by [('a * 'b) t] @since 1.0 *)
 
 type 'a equal = 'a -> 'a -> bool
 type 'a hash = 'a -> int
@@ -199,7 +199,7 @@ val seq_list_map : f:('a -> 'b t) -> 'a list -> 'b list t
 
 val filter_count : f:('a -> bool) -> 'a t -> int
 (** Count how many elements satisfy the given predicate
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 val intersperse : x:'a -> 'a t -> 'a t
 (** Insert the single element between every element of the sequence *)
@@ -207,15 +207,15 @@ val intersperse : x:'a -> 'a t -> 'a t
 val keep_some : 'a option t -> 'a t
 (** [filter_some l] retains only elements of the form [Some x].
     Same as [filter_map (fun x->x)]
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 val keep_ok : ('a, _) Result.result t -> 'a t
 (** [keep_ok l] retains only elements of the form [Ok x].
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 val keep_error : (_, 'e) Result.result t -> 'e t
 (** [keep_error l] retains only elements of the form [Error x].
-    @since NEXT_RELEASE *)
+    @since 1.0 *)
 
 (** {2 Caching} *)
 
@@ -457,7 +457,7 @@ val rev : 'a t -> 'a t
 
 val zip_i : 'a t -> (int * 'a) t
 (** Zip elements of the sequence with their index in the sequence.
-    Changed type @since NEXT_RELEASE to just give a sequence of pairs *)
+    Changed type @since 1.0 to just give a sequence of pairs *)
 
 val fold2 : f:('c -> 'a -> 'b -> 'c) -> init:'c -> ('a * 'b) t -> 'c