diff --git a/CHANGES.md b/CHANGES.md
index 03390c50..6549798b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,4 +1,10 @@
 
+## 0.16
+
+- feat: add `Request.client_addr` accessor
+- feat: add `tiny_httpd.prometheus`, a simple sub-library
+    to expose [prometheus](https://prometheus.io) metrics over HTTP.
+
 ## 0.15
 
 - fix: do not block in `accept`, enabling more graceful shutdown
diff --git a/dune-project b/dune-project
index 435b7f75..85c3cd36 100644
--- a/dune-project
+++ b/dune-project
@@ -4,7 +4,7 @@
 
 (authors c-cube)
 (maintainers c-cube)
-(version 0.15)
+(version 0.16)
 (source (github c-cube/tiny_httpd))
 (homepage https://github.com/c-cube/tiny_httpd/)
 (license MIT)
diff --git a/src/Tiny_httpd_server.mli b/src/Tiny_httpd_server.mli
index 621f6ed9..18c94ba2 100644
--- a/src/Tiny_httpd_server.mli
+++ b/src/Tiny_httpd_server.mli
@@ -129,7 +129,7 @@ module Request : sig
 
   val client_addr : _ t -> Unix.sockaddr
   (** Client address of the request.
-      @since NEXT_RELEASE *)
+      @since 0.16 *)
 
   val meth : _ t -> Meth.t
   (** Method for the request. *)
diff --git a/tiny_httpd.opam b/tiny_httpd.opam
index 955a14fe..72a1a50e 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: "0.15"
+version: "0.16"
 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 e9237299..b722c075 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: "0.15"
+version: "0.16"
 synopsis: "Interface to camlzip for tiny_httpd"
 maintainer: ["c-cube"]
 authors: ["c-cube"]