diff --git a/packages/org.eclipse.epp.package.committers.feature/epp.website.xml b/packages/org.eclipse.epp.package.committers.feature/epp.website.xml
index fc2db2b3..0355b75f 100644
--- a/packages/org.eclipse.epp.package.committers.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.committers.feature/epp.website.xml
@@ -34,6 +34,6 @@ Click <a href="https://github.com/eclipse-egit/egit/issues">here</a> to open a b
   </MoreInfo>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-committers-2025-12-RC1" />
+  <product name="eclipse-committers-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.cpp.feature/epp.website.xml b/packages/org.eclipse.epp.package.cpp.feature/epp.website.xml
index 9e83a0a8..a9c24443 100644
--- a/packages/org.eclipse.epp.package.cpp.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.cpp.feature/epp.website.xml
@@ -22,6 +22,6 @@
   </packageMetaData>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-cpp-2025-12-RC1" />
+  <product name="eclipse-cpp-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.dsl.feature/epp.website.xml b/packages/org.eclipse.epp.package.dsl.feature/epp.website.xml
index 344797cc..14de5ad0 100644
--- a/packages/org.eclipse.epp.package.dsl.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.dsl.feature/epp.website.xml
@@ -27,6 +27,6 @@
   </MoreInfo>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-dsl-2025-12-RC1" />
+  <product name="eclipse-dsl-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.embedcpp.feature/epp.website.xml b/packages/org.eclipse.epp.package.embedcpp.feature/epp.website.xml
index e1740593..7a22376f 100644
--- a/packages/org.eclipse.epp.package.embedcpp.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.embedcpp.feature/epp.website.xml
@@ -29,6 +29,6 @@ To avoid compatibility issues with pre 6.x plug-ins, it is recommended to <b>cre
   </packageMetaData>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-embedcpp-2025-12-RC1" />
+  <product name="eclipse-embedcpp-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.java.feature/epp.website.xml b/packages/org.eclipse.epp.package.java.feature/epp.website.xml
index a03b4454..d93d1d3e 100644
--- a/packages/org.eclipse.epp.package.java.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.java.feature/epp.website.xml
@@ -28,6 +28,6 @@
 
 
 	<!-- name, the name of the product, used in naming the created files. -->
-	<product name="eclipse-java-2025-12-RC1" />
+	<product name="eclipse-java-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.jee.feature/epp.website.xml b/packages/org.eclipse.epp.package.jee.feature/epp.website.xml
index f5cae727..5039760d 100644
--- a/packages/org.eclipse.epp.package.jee.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.jee.feature/epp.website.xml
@@ -34,6 +34,6 @@ Click <a href="https://github.com/eclipse-wildwebdeveloper/wildwebdeveloper/issu
   </MoreInfo>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-jee-2025-12-RC1" />
+  <product name="eclipse-jee-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.modeling.feature/epp.website.xml b/packages/org.eclipse.epp.package.modeling.feature/epp.website.xml
index 3b6fbdbc..97ebfd00 100644
--- a/packages/org.eclipse.epp.package.modeling.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.modeling.feature/epp.website.xml
@@ -24,6 +24,6 @@
   </packageMetaData>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-modeling-2025-12-RC1" />
+  <product name="eclipse-modeling-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.php.feature/epp.website.xml b/packages/org.eclipse.epp.package.php.feature/epp.website.xml
index 1adb4e12..8764d438 100644
--- a/packages/org.eclipse.epp.package.php.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.php.feature/epp.website.xml
@@ -32,6 +32,6 @@ Click <a href="https://github.com/eclipse-wildwebdeveloper/wildwebdeveloper/issu
   </MoreInfo>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-php-2025-12-RC1" />
+  <product name="eclipse-php-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.rcp.feature/epp.website.xml b/packages/org.eclipse.epp.package.rcp.feature/epp.website.xml
index c666ee5c..2fa38d99 100644
--- a/packages/org.eclipse.epp.package.rcp.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.rcp.feature/epp.website.xml
@@ -27,6 +27,6 @@
   </MoreInfo>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-rcp-2025-12-RC1" />
+  <product name="eclipse-rcp-2025-12-R" />
 
 </configuration>
diff --git a/packages/org.eclipse.epp.package.scout.feature/epp.website.xml b/packages/org.eclipse.epp.package.scout.feature/epp.website.xml
index 3060d723..f0ab119a 100644
--- a/packages/org.eclipse.epp.package.scout.feature/epp.website.xml
+++ b/packages/org.eclipse.epp.package.scout.feature/epp.website.xml
@@ -31,6 +31,6 @@
   </MoreInfo>
 
   <!-- name, the name of the product, used in naming the created files. -->
-  <product name="eclipse-scout-2025-12-RC1" />
+  <product name="eclipse-scout-2025-12-R" />
 
 </configuration>
diff --git a/releng/org.eclipse.epp.config/org.eclipse.epp.releng.updater/src/org/eclipse/epp/releng/updater/Updater.java b/releng/org.eclipse.epp.config/org.eclipse.epp.releng.updater/src/org/eclipse/epp/releng/updater/Updater.java
index 974dbc36..82c9ac38 100644
--- a/releng/org.eclipse.epp.config/org.eclipse.epp.releng.updater/src/org/eclipse/epp/releng/updater/Updater.java
+++ b/releng/org.eclipse.epp.config/org.eclipse.epp.releng.updater/src/org/eclipse/epp/releng/updater/Updater.java
@@ -31,7 +31,7 @@ public class Updater {
 	/**
 	 * M1, M2, M3, RC1, RC2
 	 */
-	private static final String MILESTONE = "RC1";
+	private static final String MILESTONE = "RC2";
 
 	private static final String PLATFORM_VERSION = "4.38";
 
diff --git a/releng/org.eclipse.epp.config/parent/pom.xml b/releng/org.eclipse.epp.config/parent/pom.xml
index 17255788..79b72ef1 100644
--- a/releng/org.eclipse.epp.config/parent/pom.xml
+++ b/releng/org.eclipse.epp.config/parent/pom.xml
@@ -35,13 +35,13 @@
     <PREV_RELEASE_NAME>2025-09</PREV_RELEASE_NAME>
     <NEXT_RELEASE_NAME>2026-03</NEXT_RELEASE_NAME>
     <!-- Name of the milestone -->
-    <RELEASE_MILESTONE>RC1</RELEASE_MILESTONE>
+    <RELEASE_MILESTONE>R</RELEASE_MILESTONE>
     <!-- Version of the release -->
     <RELEASE_VERSION>4.38.0</RELEASE_VERSION>
     <!-- Name release directory on download.eclipse.org -->
-    <RELEASE_DIR>202511271000</RELEASE_DIR>
+    <RELEASE_DIR>202512041000</RELEASE_DIR>
     <!-- SimRel Repo to build from -->
-    <SIMREL_REPO>https://download.eclipse.org/releases/2025-12/202511281000/</SIMREL_REPO>
+    <SIMREL_REPO>https://download.eclipse.org/staging/2025-12/</SIMREL_REPO>
     <!-- ID used to generate the filename of the packages -->
     <eclipse.simultaneous.release.id>${RELEASE_NAME}-${RELEASE_MILESTONE}</eclipse.simultaneous.release.id>
     <!-- Timestamp used in various places, e.g. the about dialog (see about.mappings) -->
@@ -51,7 +51,7 @@
     <!-- eclipse.simultaneous.release.name value for non-R builds -->
     <!-- <eclipse.simultaneous.release.name>${RELEASE_NAME} ${RELEASE_MILESTONE} (${RELEASE_VERSION} ${RELEASE_MILESTONE})</eclipse.simultaneous.release.name> -->
     <!-- eclipse.simultaneous.release.name value for R builds -->
-    <eclipse.simultaneous.release.name>${RELEASE_NAME} ${RELEASE_MILESTONE} (${RELEASE_VERSION} ${RELEASE_MILESTONE})</eclipse.simultaneous.release.name>
+    <eclipse.simultaneous.release.name>${RELEASE_NAME} (${RELEASE_VERSION})</eclipse.simultaneous.release.name>
     <!-- Upstream p2 repository, used as a source for pre-compiled build artifacts -->
     <eclipse.simultaneous.release.repository>${SIMREL_REPO}</eclipse.simultaneous.release.repository>
     <!-- Used for the variable below to update easily, e.g., to 21. -->