diff --git a/CHANGELOG.md b/CHANGELOG.md
index b29f2bf..6f280f3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 0.39.0
+
+* Add new event acfs.operation.before_process
+
 ## 0.38.0
 
 * Allow middlewares to abort request processing
diff --git a/lib/acfs/version.rb b/lib/acfs/version.rb
index be3d9be..07e7af8 100644
--- a/lib/acfs/version.rb
+++ b/lib/acfs/version.rb
@@ -1,7 +1,7 @@
 module Acfs
   module VERSION
     MAJOR = 0
-    MINOR = 38
+    MINOR = 39
     PATCH = 0
     STAGE = nil