diff --git a/RealFuels/RealFuels.version b/RealFuels/RealFuels.version
index e6eadbb0..4f681a9c 100644
--- a/RealFuels/RealFuels.version
+++ b/RealFuels/RealFuels.version
@@ -5,7 +5,7 @@
 	{
 		"MAJOR": 15,
 		"MINOR": 8,
-		"PATCH": 3
+		"PATCH": 4
 	},
 	"KSP_VERSION":
 	{
diff --git a/RealFuels/changelog.cfg b/RealFuels/changelog.cfg
index d3a3c5b8..f5422fc8 100644
--- a/RealFuels/changelog.cfg
+++ b/RealFuels/changelog.cfg
@@ -5,6 +5,17 @@ KERBALCHANGELOG
 	author = KSP-RO team
 	website = github.com/KSP-RO/RealFuels
 	VERSION
+	{
+		version = 15.8.4.0
+		versionKSP = 1.12.3
+		CHANGE
+		{
+			change = What's Changed
+			subchange = Scale resources when B9PS changes the volume
+			subchange = Add Harmony patch to handle MFTs in B9PS
+		}
+	}
+	VERSION
 	{
 		version = 15.8.3.0
 		versionKSP = 1.12.3