diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5b0c1db..222979c4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,15 @@
 
-## main
-- breaking: CCListLabel.compare and CCListLabel.equal takes the function on the elements as named arguments
-- breaking: CCListLabel.init now takes the length as a named arguments to follow the Stdlib
-- breaking: change the semantic of CCFloat.{min,max} with respect to NaN to follow the Stdlib
-- breaking: change the semantic of CCInt.rem with respect to negative number to follow the Stdlib
-- breaking: change the order of argument of CCMap.add_seq to align with the stdlib.
+## 3.18
+
+- fix leb128 slice bug
+- fix leb128 `Int64.min_int` bug
+- add tests for leb128 library (#486)
+- some breaking changes after the big bump to 4.08 as lower bound, thanks to @fardale for the cleanup
+  * breaking: CCListLabel.compare and CCListLabel.equal takes the function on the elements as named arguments
+  * breaking: CCListLabel.init now takes the length as a named arguments to follow the Stdlib
+  * breaking: change the semantic of CCFloat.{min,max} with respect to NaN to follow the Stdlib
+  * breaking: change the semantic of CCInt.rem with respect to negative number to follow the Stdlib
+  * breaking: change the order of argument of `CCMap.add_seq` to align with the stdlib.
 
 ## 3.17
 
diff --git a/containers-data.opam b/containers-data.opam
index f6a728a2..f14ab1b8 100644
--- a/containers-data.opam
+++ b/containers-data.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "3.17"
+version: "3.18"
 synopsis: "A set of advanced datatypes for containers"
 maintainer: ["c-cube"]
 authors: ["c-cube"]
diff --git a/containers.opam b/containers.opam
index e9d1280b..b12887d2 100644
--- a/containers.opam
+++ b/containers.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "3.17"
+version: "3.18"
 synopsis:
   "A modular, clean and powerful extension of the OCaml standard library"
 maintainer: ["c-cube"]
diff --git a/dune-project b/dune-project
index 79c7fc58..e436fdce 100644
--- a/dune-project
+++ b/dune-project
@@ -4,7 +4,7 @@
 
 (generate_opam_files true)
 
-(version 3.17)
+(version 3.18)
 
 (authors c-cube)
 
diff --git a/src/core/CCFormat.mli b/src/core/CCFormat.mli
index ec225687..6d715216 100644
--- a/src/core/CCFormat.mli
+++ b/src/core/CCFormat.mli
@@ -104,7 +104,7 @@ val option : ?none:unit printer -> 'a printer -> 'a option printer
         - [Some x] will become [pp x]
         - [None] will become [none ()]
     Alias of {!Format.pp_print_option}
-    @since NEXT_RELEASE *)
+    @since 3.18 *)
 
 val opt : 'a printer -> 'a option printer
 (** [opt pp] prints options as follows:
diff --git a/src/core/CCSeq.mli b/src/core/CCSeq.mli
index cea1951f..02987a37 100644
--- a/src/core/CCSeq.mli
+++ b/src/core/CCSeq.mli
@@ -49,7 +49,7 @@ val forever : (unit -> 'a) -> 'a t
 
 val cycle : 'a t -> 'a t
 (** Cycle through the sequence infinitely. The sequence should be persistent.
-  @since NEXT_RELEASE the sequence can be empty, in this case cycle return an empty sequence. *)
+  @since 3.18 the sequence can be empty, in this case cycle return an empty sequence. *)
 
 val iterate : ('a -> 'a) -> 'a -> 'a t
 (** [iterate f a] corresponds to the infinite sequence containing [a], [f a], [f (f a)],