diff --git a/JenkinsJobs/buildConfigurations.json b/JenkinsJobs/buildConfigurations.json
index 732561433a7..3c31b68747c 100644
--- a/JenkinsJobs/buildConfigurations.json
+++ b/JenkinsJobs/buildConfigurations.json
@@ -69,19 +69,19 @@
 		]
 	},
 	"Y": {
-		"typeName": "Beta Java 25",
+		"typeName": "Beta Java 26",
 		"folder": "YBuilds",
 		"streams": {
 			"4.38": {
 				"branch": "master",
-				"disabled": "true",
-				"schedule": "0 10 * 8-10 2,4,6\n0 10 1-26 11 2,4,6"
+				"disabled": "false",
+				"schedule": "0 10 * * 2,4,6"
 			}
 		},
 		"branches": {
-			"eclipse.jdt.core": "BETA_JAVA25",
-			"eclipse.jdt.debug": "BETA_JAVA25",
-			"eclipse.jdt.ui": "BETA_JAVA25"
+			"eclipse.jdt.core": "BETA_JAVA26",
+			"eclipse.jdt.debug": "BETA_JAVA26",
+			"eclipse.jdt.ui": "BETA_JAVA26"
 		},
 		"mailingList": "jdt-dev@eclipse.org",
 		"testsFolder": "YBuilds",
@@ -101,11 +101,11 @@
 				"os": "linux",
 				"ws": "gtk",
 				"arch": "x86_64",
-				"javaVersion": 25,
+				"javaVersion": 26,
 				"agent": "ubuntu-2404",
 				"jdk": {
 					"type": "install",
-					"url": "https://download.java.net/java/GA/jdk25/bd75d5f9689641da8e1daabeccb5528b/36/GPL/openjdk-25_linux-x64_bin.tar.gz"
+					"url": "https://download.java.net/java/early_access/jdk26/23/GPL/openjdk-26-ea+23_linux-x64_bin.tar.gz"
 				}
 			},
 			{