diff --git a/CHANGELOG b/CHANGELOG
index e71f691..18d8d6a 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,7 @@
+2015-09-13 - v0.4.0
+  * Corrected mutability of some pointers (breaking change).
+  * Future-proofing representation of GExiv2Metadata against upcoming lint.
+
 2015-09-06 - v0.3.0
   * Added declarations for working with gexiv2's logging system
   * Slightly improved documentation
diff --git a/Cargo.toml b/Cargo.toml
index cc9f5dd..a3bd5b3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,7 +8,7 @@ FFI declarations are provided here; for a usable Rust library, consider
 the `rexiv2` crate.
 """
 
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Felix Crux <felixc@felixcrux.com>"]
 license = "GPL-3.0+"
 homepage = "https://github.com/felixc/gexiv2-sys"