diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f20ceacee..10a69f73c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,12 +11,12 @@ tag versions. The Bond compiler (`gbc`) and
 different versioning scheme, following the Haskell community's
 [package versioning policy](https://wiki.haskell.org/Package_versioning_policy).
 
-## Unreleased ##
+## 9.0.5: 2021-04-14 ##
 
-* IDL core version: TBD
-* C++ version: TBD (bug fix bump needed)
-* C# NuGet version: TBD (bug fix bump needed)
-* `gbc` & compiler library: TBD
+* IDL core version: 3.0
+* C++ version: 9.0.5
+* C# NuGet version: 9.0.5
+* `gbc` & compiler library: 0.12.1.0
 
 ### C++/Python ###
 
diff --git a/cpp/inc/bond/core/bond_version.h b/cpp/inc/bond/core/bond_version.h
index 1dbe94de89..42c01115f8 100644
--- a/cpp/inc/bond/core/bond_version.h
+++ b/cpp/inc/bond/core/bond_version.h
@@ -8,7 +8,7 @@
 #include <stdint.h>
 #include <type_traits>
 
-#define BOND_VERSION 0x0902
+#define BOND_VERSION 0x0905
 #define BOND_MIN_CODEGEN_VERSION 0x0c10
 
 namespace bond