diff --git a/chronicle-bom/pom.xml b/chronicle-bom/pom.xml
index 5f758a3f2..af6c5d279 100644
--- a/chronicle-bom/pom.xml
+++ b/chronicle-bom/pom.xml
@@ -20,7 +20,7 @@
     <parent>
         <groupId>net.openhft</groupId>
         <artifactId>root-parent-pom</artifactId>
-        <version>1.25.4</version>
+        <version>1.25.5-SNAPSHOT</version>
         <relativePath />
     </parent>
     <modelVersion>4.0.0</modelVersion>
diff --git a/java-parent-pom/pom.xml b/java-parent-pom/pom.xml
index ed2f037f2..5bb1b00f0 100644
--- a/java-parent-pom/pom.xml
+++ b/java-parent-pom/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>net.openhft</groupId>
         <artifactId>root-parent-pom</artifactId>
-        <version>1.25.4</version>
+        <version>1.25.5-SNAPSHOT</version>
         <relativePath />
     </parent>
 
diff --git a/root-parent-pom/pom.xml b/root-parent-pom/pom.xml
index cf3dd7e09..7c9ab22c7 100644
--- a/root-parent-pom/pom.xml
+++ b/root-parent-pom/pom.xml
@@ -375,6 +375,27 @@
                 </plugins>
             </build>
         </profile>
+        <profile>
+            <!-- prevents "bootstrap class path not set in conjunction with -source 8" -->
+            <id>set-compiler-release-java9</id>
+            <activation>
+                <jdk>[9,21]</jdk>
+            </activation>
+            <properties>
+                <maven.compiler.release>8</maven.compiler.release>
+            </properties>
+        </profile>
+        <profile>
+            <!-- -source 8 no longer supported in Java 21" -->
+            <id>set-compiler-release-java21</id>
+            <activation>
+                <jdk>[21,)</jdk>
+            </activation>
+            <properties>
+                <compiler.release>11</compiler.release>
+                <maven.compiler.release>11</maven.compiler.release>
+            </properties>
+        </profile>
         <profile>
             <id>java11</id>
             <activation>
diff --git a/third-party-bom/pom.xml b/third-party-bom/pom.xml
index 95cb53bd1..d037985b8 100644
--- a/third-party-bom/pom.xml
+++ b/third-party-bom/pom.xml
@@ -24,7 +24,7 @@
     <parent>
         <groupId>net.openhft</groupId>
         <artifactId>root-parent-pom</artifactId>
-        <version>1.25.4</version>
+        <version>1.25.5-SNAPSHOT</version>
         <relativePath />
     </parent>