diff --git a/JenkinsJobs/Builds/I_build.groovy b/JenkinsJobs/Builds/I_build.groovy
index fc5c4f4edb9..c152fe8262e 100644
--- a/JenkinsJobs/Builds/I_build.groovy
+++ b/JenkinsJobs/Builds/I_build.groovy
@@ -17,17 +17,14 @@ for (STREAM in STREAMS){
 # format: Minute Hour Day Month Day of the week (0-7)
 
 # - - - Integration Eclipse SDK builds - - - 
-# 2023-09 Release Schedule
+# 2023-12 Release Schedule
 # Normal : 6 PM every day (1/6 - 2/9)
 # 0 18 * * *
 
 
-# Milestone/RC Schedule 5/12 - 5/31
+# Milestone/RC Schedule 
 # Post M1, no nightlies, I-builds only. (Be sure to "turn off" for tests and sign off days)
-# 0 6 1-7 7 5-7,1-3
-# 0 18 30,1-7 6-7 5-7,1-3
-0 6 11-30 8 5-7,1-3
-0 18 11-30 8 5-7,1-3
+
             """)
           }
         }
diff --git a/eclipse-platform-parent/pom.xml b/eclipse-platform-parent/pom.xml
index faa68f9eadb..d4e2d49123f 100644
--- a/eclipse-platform-parent/pom.xml
+++ b/eclipse-platform-parent/pom.xml
@@ -49,7 +49,7 @@
       such as Version: Mars (4.5), for main features.
       See bug 328139.
     -->
-    <releaseName>2023-09</releaseName>
+    <releaseName>2023-12</releaseName>
     <!--
       The releaseNumbers below, for SDK and Platform, might be
       thought of as the "marketing number" or "branding number",
diff --git a/eclipse.platform.common/bundles/org.eclipse.jdt.doc.isv/jdtOptions.txt b/eclipse.platform.common/bundles/org.eclipse.jdt.doc.isv/jdtOptions.txt
index ee07c0e220c..7224a3a9fc6 100644
--- a/eclipse.platform.common/bundles/org.eclipse.jdt.doc.isv/jdtOptions.txt
+++ b/eclipse.platform.common/bundles/org.eclipse.jdt.doc.isv/jdtOptions.txt
@@ -100,7 +100,7 @@
 -splitIndex
 -windowtitle "Eclipse JDT API Specification"
 -doctitle "Eclipse JDT API Specification"
--header "<span style='font-size:small'><b>Eclipse JDT</b><br>2023-09 (4.29)</span>"
+-header "<span style='font-size:small'><b>Eclipse JDT</b><br>2023-12 (4.30)</span>"
 -bottom "<br><span style='font-size:small;float:right'>Copyright (c) 2000, 2023 Eclipse Contributors and others. All rights reserved.</span><span style='font-size:small'><a href='{@docRoot}/../misc/api-usage-rules.html'>Guidelines for using Eclipse APIs.</a></span>"
 -group "Java development tools core packages" "org.eclipse.jdt.core
 ;org.eclipse.jdt.core.*"
diff --git a/eclipse.platform.common/bundles/org.eclipse.pde.doc.user/pdeOptions.txt b/eclipse.platform.common/bundles/org.eclipse.pde.doc.user/pdeOptions.txt
index 12b3147fd99..513ddb11749 100644
--- a/eclipse.platform.common/bundles/org.eclipse.pde.doc.user/pdeOptions.txt
+++ b/eclipse.platform.common/bundles/org.eclipse.pde.doc.user/pdeOptions.txt
@@ -87,7 +87,7 @@
 
 -windowtitle "Eclipse PDE API Specification"
 -doctitle "Eclipse PDE API Specification"
--header "<span style='font-size:small'><b>Eclipse PDE</b><br>2023-09 (4.29)</span>"
+-header "<span style='font-size:small'><b>Eclipse PDE</b><br>2023-12 (4.30)</span>"
 -bottom "<br><span style='font-size:small;float:right'>Copyright (c) 2000, 2023 Eclipse Contributors and others. All rights reserved.</span><span style='font-size:small'><a href='{@docRoot}/../misc/api-usage-rules.html'>Guidelines for using Eclipse APIs.</a></span>"
 -link https://docs.oracle.com/en/java/javase/17/docs/api
 -link https://docs.osgi.org/javadoc/osgi.core/8.0.0/
diff --git a/eclipse.platform.common/bundles/org.eclipse.platform.doc.isv/platformOptions.txt b/eclipse.platform.common/bundles/org.eclipse.platform.doc.isv/platformOptions.txt
index d28423f384a..b5ba9d1d4d6 100644
--- a/eclipse.platform.common/bundles/org.eclipse.platform.doc.isv/platformOptions.txt
+++ b/eclipse.platform.common/bundles/org.eclipse.platform.doc.isv/platformOptions.txt
@@ -191,7 +191,7 @@
 -splitIndex
 -windowtitle "Eclipse Platform API Specification"
 -doctitle "Eclipse Platform API Specification"
--header "<span style='font-size:small'><b>Eclipse Platform</b><br>2023-09 (4.29)</span>"
+-header "<span style='font-size:small'><b>Eclipse Platform</b><br>2023-12 (4.30)</span>"
 -bottom "<br><span style='font-size:small;float:right'>Copyright (c) 2000, 2023 Eclipse Contributors and others. All rights reserved.</span><span style='font-size:small'><a href='{@docRoot}/../misc/api-usage-rules.html'>Guidelines for using Eclipse APIs.</a></span>"
 -link https://docs.oracle.com/en/java/javase/17/docs/api
 -link https://docs.osgi.org/javadoc/osgi.core/8.0.0/
diff --git a/eclipse.platform.releng.tychoeclipsebuilder/java21patch/eclipse.releng.repository.java21patch/category.xml b/eclipse.platform.releng.tychoeclipsebuilder/java21patch/eclipse.releng.repository.java21patch/category.xml
index cb7f031522a..1685dbd4e46 100644
--- a/eclipse.platform.releng.tychoeclipsebuilder/java21patch/eclipse.releng.repository.java21patch/category.xml
+++ b/eclipse.platform.releng.tychoeclipsebuilder/java21patch/eclipse.releng.repository.java21patch/category.xml
@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <site>
    <feature id="org.eclipse.jdt.java21patch" version="0.0.0" patch="true">
-      <category name="Eclipse Java 21 support for 2023-09 development stream"/>
+      <category name="Eclipse Java 21 support for 2023-12 development stream"/>
    </feature>
    <feature id="org.eclipse.jdt.java21patch.source" version="0.0.0" patch="true">
-      <category name="Eclipse Java 21 support for 2023-09 development stream"/>
+      <category name="Eclipse Java 21 support for 2023-12 development stream"/>
    </feature>
-   <category-def name="Eclipse Java 21 support for 2023-09 development stream" label="Eclipse Java 21 support for 2023-09 development stream">
+   <category-def name="Eclipse Java 21 support for 2023-12 development stream" label="Eclipse Java 21 support for 2023-12 development stream">
       <description>
-         Eclipse Java 21 support for 2023-09 development stream.
+         Eclipse Java 21 support for 2023-12 development stream.
       </description>
    </category-def>
 </site>
diff --git a/eclipse.platform.releng.tychoeclipsebuilder/java21patch/org.eclipse.jdt.java21patch/sourceTemplateFeature/feature.properties b/eclipse.platform.releng.tychoeclipsebuilder/java21patch/org.eclipse.jdt.java21patch/sourceTemplateFeature/feature.properties
index 64abc0a7372..07f28714b14 100644
--- a/eclipse.platform.releng.tychoeclipsebuilder/java21patch/org.eclipse.jdt.java21patch/sourceTemplateFeature/feature.properties
+++ b/eclipse.platform.releng.tychoeclipsebuilder/java21patch/org.eclipse.jdt.java21patch/sourceTemplateFeature/feature.properties
@@ -18,13 +18,13 @@
 # This file should be translated.
 
 # "featureName" property - name of the feature
-featureName=Eclipse JDT (Java Development Tools) Source Patch with Java 21 support for 2023-09 development stream
+featureName=Eclipse JDT (Java Development Tools) Source Patch with Java 21 support for 2023-12 development stream
 
 # "providerName" property - name of the company that provides the feature
 providerName=Eclipse.org
 
 # "description" property - description of the feature
-description=Eclipse Java 21 support for 2023-09 development stream.\n
+description=Eclipse Java 21 support for 2023-12 development stream.\n
 
 # "copyright" property - text of the "Feature Update Copyright"
 copyright=\