diff --git a/README.md b/README.md
index c96962c..77e21f3 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
 # ocaml-ppx-compare
 
-The ocaml-ppx-compare package
\ No newline at end of file
+[`Ppx_compare`](https://github.com/janestreet/ppx_compare) is a ppx rewriter
+that derives comparison and equality functions from type representations.  The
+scaffolded functions are usually much faster than OCaml's `Pervasives.compare`
+and `Pervasives.(=)`.  Scaffolding functions also give more flexibility by
+allowing them to be overridden for a specific type, and more safety by making
+sure that only comparable values are compared.
diff --git a/ocaml-ppx-compare.spec b/ocaml-ppx-compare.spec
index 33ad813..c230181 100644
--- a/ocaml-ppx-compare.spec
+++ b/ocaml-ppx-compare.spec
@@ -10,18 +10,18 @@
 %global upname  ppx_compare
 
 Name:           ocaml-%{srcname}
-Version:        0.14.0
-Release:        14%{?dist}
+Version:        0.15.0
+Release:        1%{?dist}
 Summary:        Generate comparison functions from types
 
 License:        MIT
 URL:            https://github.com/janestreet/%{upname}
 Source0:        %{url}/archive/v%{version}/%{upname}-%{version}.tar.gz
 
-BuildRequires:  ocaml >= 4.04.2
-BuildRequires:  ocaml-base-devel >= 0.14.0
+BuildRequires:  ocaml >= 4.08.0
+BuildRequires:  ocaml-base-devel >= 0.15.0
 BuildRequires:  ocaml-dune >= 2.0.0
-BuildRequires:  ocaml-ppxlib-devel >= 0.11.0
+BuildRequires:  ocaml-ppxlib-devel >= 0.23.0
 BuildRequires:  ocaml-odoc
 
 %if %{with tests}
@@ -50,7 +50,7 @@ developing applications that use %{name}.
 %autosetup -n %{upname}-%{version} -p1
 
 %build
-dune build %{?_smp_mflags}
+dune build %{?_smp_mflags} --verbose --profile release
 dune build %{?_smp_mflags} @doc
 
 %install
@@ -109,6 +109,9 @@ dune runtest
 %{_libdir}/ocaml/%{upname}/*/*.mli
 
 %changelog
+* Tue Nov 30 2021 Jerry James <loganjerry@gmail.com> - 0.15.0-1
+- Version 0.15.0
+
 * Tue Oct 05 2021 Richard W.M. Jones <rjones@redhat.com> - 0.14.0-14
 - OCaml 4.13.1 build
 
diff --git a/sources b/sources
index 623a852..8e3709b 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (ppx_compare-0.14.0.tar.gz) = be02c8114e0915439c04b3d796029ad124e9a2e637032d6a86a41c03b81985cb0f68f65bc43c1d12221b521f6fa10006a105b3ffe95e991ed9695692fd0763cb
+SHA512 (ppx_compare-0.15.0.tar.gz) = b6ee858fd92b26026a82cb1c1d2f1e2855e9c68f6b632c2f76ea771ab33f329b8121462b36e95fa7ecbe9d329102f0240b8b90253e44ebc4e727b767ef8667e0