diff --git a/CHANGES.md b/CHANGES.md
index 9f35bc0..27f2a0b 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,9 @@
-### 1.0.0 (2016-12-20)
+v1.1.0 2017-06-15
+-----------------
 
-- Initial version, code imported from https://github.com/mirage/mirage
\ No newline at end of file
+- Port to Jbuilder
+
+v1.0.0 2016-12-20
+-----------------
+
+- Initial version, code imported from https://github.com/mirage/mirage
diff --git a/opam b/opam
deleted file mode 100644
index a4e6f24..0000000
--- a/opam
+++ /dev/null
@@ -1,20 +0,0 @@
-opam-version: "1.2"
-maintainer:    "thomas@gazagnaire.org"
-homepage:      "https://github.com/mirage/mirage-random"
-bug-reports:   "https://github.com/mirage/mirage-random/issues"
-dev-repo:      "https://github.com/mirage/mirage-random.git"
-doc:           "https://mirage.github.io/mirage-random/"
-authors:       ["Thomas Gazagnaire" "Anil Madhavapeddy" "Gabriel Radanne"
-               "Mindy Preston" "Thomas Leonard" "Nicolas Ojeda Bar"
-               "Dave Scott" "David Kaloper" "Hannes Mehnert" "Richard Mortier"]
-tags:          [ "org:mirage"]
-license:       "ISC"
-
-build: ["ocaml" "pkg/pkg.ml" "build" "--pinned" "%{pinned}%"]
-
-depends: [
-  "ocamlfind"  {build}
-  "ocamlbuild" {build}
-  "topkg"      {build & >= "0.8.0"}
-  "cstruct" {>= "1.9.0"}
-]