diff --git a/runtime/bundles/org.eclipse.core.tools/about.mappings b/runtime/bundles/org.eclipse.core.tools/about.mappings
deleted file mode 100644
index 515397accb8..00000000000
--- a/runtime/bundles/org.eclipse.core.tools/about.mappings
+++ /dev/null
@@ -1,6 +0,0 @@
-# about.mappings
-# contains fill-ins for about.properties
-# java.io.Properties file (ISO 8859-1 with "\" escapes)
-# This file does not need to be translated.
-
-0=${buildId}
diff --git a/runtime/bundles/org.eclipse.core.tools/about.properties b/runtime/bundles/org.eclipse.core.tools/about.properties
index fdbeb817ca6..de9038edd3f 100644
--- a/runtime/bundles/org.eclipse.core.tools/about.properties
+++ b/runtime/bundles/org.eclipse.core.tools/about.properties
@@ -19,9 +19,6 @@
 
 blurb=Eclipse Core Tools\n\
 \n\
-Version: 1.5.100\n\
-Build id: {0}\n\
-\n\
-(c) Copyright IBM Corp. and others 2000, 2013.  All rights reserved.\n\
+(c) Copyright IBM Corp. and others 2000, 2026. All rights reserved.\n\
 Visit http://eclipse.org/eclipse/development/performance
 
diff --git a/runtime/bundles/org.eclipse.core.tools/build.properties b/runtime/bundles/org.eclipse.core.tools/build.properties
index 561ae6d5e00..7b400cf4b7a 100644
--- a/runtime/bundles/org.eclipse.core.tools/build.properties
+++ b/runtime/bundles/org.eclipse.core.tools/build.properties
@@ -22,7 +22,6 @@ bin.includes = plugin.xml,\
                .,\
                plugin.properties,\
                about.ini,\
-               about.mappings,\
                about.properties,\
                eclipse32.svg
 qualifier=context