diff --git a/GameData/RP-0/RP-1.version b/GameData/RP-0/RP-1.version
index 9ca3151f90b..4ddf9414c90 100644
--- a/GameData/RP-0/RP-1.version
+++ b/GameData/RP-0/RP-1.version
@@ -1,12 +1,12 @@
 {
     "NAME": "Realistic Progression One",
     "URL": "https://raw.githubusercontent.com/KSP-RO/RP-0/master/GameData/RP-0/RP-1.version",
-    "DOWNLOAD": "https://github.com/KSP-RO/RP-0/releases/download/v1.12.19.0/RP-1-v1.12.19.0.zip",
+    "DOWNLOAD": "https://github.com/KSP-RO/RP-0/releases/download/v1.13.0.0/RP-1-v1.13.0.0.zip",
     "HOMEPAGE": "https://github.com/KSP-RO/RP-0/",
     "VERSION": {
         "MAJOR": 1,
-        "MINOR": 12,
-        "PATCH": 19,
+        "MINOR": 13,
+        "PATCH": 0,
         "BUILD": 0
     },
     "KSP_VERSION": {
diff --git a/GameData/RP-0/changelog.cfg b/GameData/RP-0/changelog.cfg
index b1bbc74a286..5db8ddbc16e 100644
--- a/GameData/RP-0/changelog.cfg
+++ b/GameData/RP-0/changelog.cfg
@@ -5,6 +5,35 @@ KERBALCHANGELOG
 	author = KSP-RO team
 	website = github.com/KSP-RO/RP-0
 	VERSION
+	{
+		version = 1.13.0.0
+		versionKSP = 1.12.3
+		CHANGE
+		{
+			change = Notes
+			subchange = This will be the last series of release for Legacy RP-1, prior to the release of the Programs and Launch Complexes rework.
+		}
+		CHANGE
+		{
+			change = What's Changed
+			subchange = Update to use new RODeprecated logic in RealismOverhaul
+			subchange = Fix calculator link in Sun Sync Satellite contract
+			subchange = Fixed link to recommended mod page
+			subchange = XLR35-RM-1 subconfig price reduction
+			subchange = Add oxygen gas to HP tanks for the new RCS configs
+			subchange = Configure v2 stock lights
+			subchange = Add PumpReignition ECM to all Agena configs after XLR81-BA-7
+			subchange = Add configs for R-9 engines
+			subchange = Improve Jet Trainer: Add ballast and adjust gear so the plane is less likely to tip over if launched with one crew, and cant airbrakes so FAR doesn't get confused about which way they deploy
+		}
+		CHANGE
+		{
+			change = New Contributors
+			subchange = @SalOne22 made their first contribution in 
+			subchange = @VeselyiKot made their first contribution in 
+		}
+	}
+	VERSION
 	{
 		version = 1.12.19.0
 		versionKSP = 1.12.3
diff --git a/README.md b/README.md
index eb2b8eaad1a..b226aaf214d 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 <p align="center">
  <a href="https://nightly.link/KSP-RO/RP-0/workflows/build/master/RP-1.zip" rel="nofollow"><img src="https://badgen.net/badge/Nightly%20build/download/blue"></a>
  <a href="https://discord.gg/V73jjNd" rel="nofollow"><img src="https://badgen.net/discord/online-members/V73jjNd?icon=discord"></a>
- <a href="https://github.com/KSP-RO/RP-0/compare/v1.12.19.0...master" rel="nofollow"><img src="https://img.shields.io/github/commits-since/KSP-RO/RP-0/latest"></a>
+ <a href="https://github.com/KSP-RO/RP-0/compare/v1.13.0.0...master" rel="nofollow"><img src="https://img.shields.io/github/commits-since/KSP-RO/RP-0/latest"></a>
 </p>
 
 Welcome to Realistic Progression One, the heavyweight career addon for Kerbal Space Program's Realism Overhaul.