diff --git a/GameData/ProceduralFairings/ProceduralFairings.version b/GameData/ProceduralFairings/ProceduralFairings.version
index 0fb39da..52309c3 100644
--- a/GameData/ProceduralFairings/ProceduralFairings.version
+++ b/GameData/ProceduralFairings/ProceduralFairings.version
@@ -8,7 +8,7 @@
   },
   "VERSION" : {
     "MAJOR" : 6,
-    "MINOR" : 3,
+    "MINOR" : 4,
     "PATCH" : 0,
     "BUILD" : 0
   },
diff --git a/GameData/ProceduralFairings/changelog.cfg b/GameData/ProceduralFairings/changelog.cfg
index 50464d5..23f3a19 100644
--- a/GameData/ProceduralFairings/changelog.cfg
+++ b/GameData/ProceduralFairings/changelog.cfg
@@ -4,4 +4,23 @@ KERBALCHANGELOG
 	license = CC-BY 4.0
 	author = KSP-RO team
 	website = github.com/KSP-RO/ProceduralFairings
+	VERSION
+	{
+		version = 6.4.0.0
+		versionKSP = 1.12.3
+		CHANGE
+		{
+			change = What's Changed
+			subchange = Add Petal Option to Fairing Sides
+			subchange = Fix payload fairing thickness calculation
+			subchange = Build system maintenance
+		}
+		CHANGE
+		{
+			change = New Contributors
+			subchange = @ryanc55 made their first contribution in 
+			subchange = @StonesmileGit made their first contribution in 
+			subchange = @FioraAeterna made their first contribution in 
+		}
+	}
 }