diff --git a/dune-project b/dune-project
index 08f02b88..f6c2ebf3 100644
--- a/dune-project
+++ b/dune-project
@@ -4,7 +4,7 @@
 
 (authors c-cube)
 (maintainers c-cube)
-(version 0.17)
+(version 0.18)
 (source (github c-cube/tiny_httpd))
 (homepage https://github.com/c-cube/tiny_httpd/)
 (license MIT)
diff --git a/src/Tiny_httpd.mli b/src/Tiny_httpd.mli
index 7bad8e27..668eeb12 100644
--- a/src/Tiny_httpd.mli
+++ b/src/Tiny_httpd.mli
@@ -170,7 +170,7 @@ val create :
       used instead of the [addr] and [port]. If not passed in, those will be
       used. This parameter exists since 0.10.
     @param enable_logging if true and [Logs] is installed, log requests. Default true.
-      This parameter exists since NEXT_RELEASE. Does not affect debug-level logs.
+      This parameter exists since 0.18. Does not affect debug-level logs.
 
     @param get_time_s obtain the current timestamp in seconds.
       This parameter exists since 0.11.
diff --git a/src/core/log.mli b/src/core/log.mli
index 3990a98a..176f8cc2 100644
--- a/src/core/log.mli
+++ b/src/core/log.mli
@@ -14,4 +14,4 @@ val dummy : bool
 val fully_disable : unit -> unit
 (** Totally silence logs for tiny_httpd. With [Logs] installed this means setting
     the level of the tiny_httpd source to [None]. 
-  @since NEXT_RELEASE *)
+  @since 0.18 *)
diff --git a/src/core/response.mli b/src/core/response.mli
index 27c3069f..43d8fb6e 100644
--- a/src/core/response.mli
+++ b/src/core/response.mli
@@ -126,7 +126,7 @@ val pp_with :
       Default is ["set-cookie"].
     @param pp_body body printer
       (default fully prints String bodies, but omits stream bodies)
-    @since NEXT_RELEASE *)
+    @since 0.18 *)
 
 val pp : Format.formatter -> t -> unit
 (** Pretty print the response. The exact format is not specified. *)
diff --git a/src/core/server.mli b/src/core/server.mli
index 32d7586b..91318348 100644
--- a/src/core/server.mli
+++ b/src/core/server.mli
@@ -95,10 +95,10 @@ val create_from :
     {!set_top_handler} to specify how to handle incoming requests.
 
     @param buf_size size for buffers (since 0.11)
-    @param head_middlewares see {!add_head_middleware} for details (since NEXT_RELEASE)
+    @param head_middlewares see {!add_head_middleware} for details (since 0.18)
     @param middlewares see {!add_middleware} for more details.
     @param enable_logging if true and [Logs] is installed,
-      emit logs via Logs (since NEXT_RELEASE).
+      emit logs via Logs (since 0.18).
       Default [true].
 
     @since 0.14
@@ -158,7 +158,7 @@ val add_head_middleware : t -> Head_middleware.t -> unit
 (** Add a request-header only {!Head_middleware.t}.
     This is called on requests, to modify them, and returns a new request
     immediately.
-    @since NEXT_RELEASE *)
+    @since 0.18 *)
 
 (** {2 Request handlers} *)
 
diff --git a/tiny_httpd.opam b/tiny_httpd.opam
index b5806c05..1225ebc7 100644
--- a/tiny_httpd.opam
+++ b/tiny_httpd.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.17"
+version: "0.18"
 synopsis: "Minimal HTTP server using threads"
 maintainer: ["c-cube"]
 authors: ["c-cube"]
diff --git a/tiny_httpd_camlzip.opam b/tiny_httpd_camlzip.opam
index 830fd19a..5a1d44f0 100644
--- a/tiny_httpd_camlzip.opam
+++ b/tiny_httpd_camlzip.opam
@@ -1,6 +1,6 @@
 # This file is generated by dune, edit dune-project instead
 opam-version: "2.0"
-version: "0.17"
+version: "0.18"
 synopsis: "Interface to camlzip for tiny_httpd"
 maintainer: ["c-cube"]
 authors: ["c-cube"]