diff --git a/lib/Base.jar b/lib/Base.jar
index d347dbd..e09e2f7 100755
Binary files a/lib/Base.jar and b/lib/Base.jar differ
diff --git a/lib/Decompiler.jar b/lib/Decompiler.jar
index 6da4136..357b415 100755
Binary files a/lib/Decompiler.jar and b/lib/Decompiler.jar differ
diff --git a/lib/Docking.jar b/lib/Docking.jar
index 2e58f2e..8d9ba74 100755
Binary files a/lib/Docking.jar and b/lib/Docking.jar differ
diff --git a/lib/Generic.jar b/lib/Generic.jar
index 1755e14..50e8706 100755
Binary files a/lib/Generic.jar and b/lib/Generic.jar differ
diff --git a/lib/Project.jar b/lib/Project.jar
index fb93904..98bf550 100755
Binary files a/lib/Project.jar and b/lib/Project.jar differ
diff --git a/lib/SoftwareModeling.jar b/lib/SoftwareModeling.jar
index b9ed858..83a482f 100755
Binary files a/lib/SoftwareModeling.jar and b/lib/SoftwareModeling.jar differ
diff --git a/lib/Utility.jar b/lib/Utility.jar
index 4fe9673..7f4ef3f 100755
Binary files a/lib/Utility.jar and b/lib/Utility.jar differ
diff --git a/pom.xml b/pom.xml
index 3e7bead..fd9f039 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,14 @@
   <properties>
     <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
     <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
-    <ghidra.jar.location>${project.basedir}/lib</ghidra.jar.location>
+    <!-- Default paths to local lib - will be overridden if GHIDRA_HOME is set -->
+    <ghidra.generic.jar>${project.basedir}/lib/Generic.jar</ghidra.generic.jar>
+    <ghidra.softwaremodeling.jar>${project.basedir}/lib/SoftwareModeling.jar</ghidra.softwaremodeling.jar>
+    <ghidra.project.jar>${project.basedir}/lib/Project.jar</ghidra.project.jar>
+    <ghidra.docking.jar>${project.basedir}/lib/Docking.jar</ghidra.docking.jar>
+    <ghidra.decompiler.jar>${project.basedir}/lib/Decompiler.jar</ghidra.decompiler.jar>
+    <ghidra.utility.jar>${project.basedir}/lib/Utility.jar</ghidra.utility.jar>
+    <ghidra.base.jar>${project.basedir}/lib/Base.jar</ghidra.base.jar>
     <maven.deploy.skip>true</maven.deploy.skip>
     <maven.install.skip>true</maven.install.skip>
     <maven.build.timestamp.format>yyyyMMdd-HHmmss</maven.build.timestamp.format>
@@ -31,54 +38,55 @@
     </dependency>
 
     <!-- Ghidra JARs as system-scoped dependencies -->
+    <!-- Paths can be overridden via GHIDRA_HOME environment variable -->
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>Generic</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/Generic.jar</systemPath>
+      <systemPath>${ghidra.generic.jar}</systemPath>
     </dependency>
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>SoftwareModeling</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/SoftwareModeling.jar</systemPath>
+      <systemPath>${ghidra.softwaremodeling.jar}</systemPath>
     </dependency>
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>Project</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/Project.jar</systemPath>
+      <systemPath>${ghidra.project.jar}</systemPath>
     </dependency>
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>Docking</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/Docking.jar</systemPath>
+      <systemPath>${ghidra.docking.jar}</systemPath>
     </dependency>
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>Decompiler</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/Decompiler.jar</systemPath>
+      <systemPath>${ghidra.decompiler.jar}</systemPath>
     </dependency>
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>Utility</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/Utility.jar</systemPath>
+      <systemPath>${ghidra.utility.jar}</systemPath>
     </dependency>
     <dependency>
       <groupId>ghidra</groupId>
       <artifactId>Base</artifactId>
-      <version>11.3.1</version>
+      <version>11.4.2</version>
       <scope>system</scope>
-      <systemPath>${ghidra.jar.location}/Base.jar</systemPath>
+      <systemPath>${ghidra.base.jar}</systemPath>
     </dependency>
     
     <!-- Test dependencies -->
@@ -251,6 +259,25 @@
   </build>
   
   <profiles>
+    <!-- Profile activated when GHIDRA_HOME environment variable is set -->
+    <profile>
+      <id>use-ghidra-home</id>
+      <activation>
+        <property>
+          <name>env.GHIDRA_HOME</name>
+        </property>
+      </activation>
+      <properties>
+        <ghidra.generic.jar>${env.GHIDRA_HOME}/Ghidra/Framework/Generic/lib/Generic.jar</ghidra.generic.jar>
+        <ghidra.softwaremodeling.jar>${env.GHIDRA_HOME}/Ghidra/Framework/SoftwareModeling/lib/SoftwareModeling.jar</ghidra.softwaremodeling.jar>
+        <ghidra.project.jar>${env.GHIDRA_HOME}/Ghidra/Framework/Project/lib/Project.jar</ghidra.project.jar>
+        <ghidra.docking.jar>${env.GHIDRA_HOME}/Ghidra/Framework/Docking/lib/Docking.jar</ghidra.docking.jar>
+        <ghidra.decompiler.jar>${env.GHIDRA_HOME}/Ghidra/Features/Decompiler/lib/Decompiler.jar</ghidra.decompiler.jar>
+        <ghidra.utility.jar>${env.GHIDRA_HOME}/Ghidra/Framework/Utility/lib/Utility.jar</ghidra.utility.jar>
+        <ghidra.base.jar>${env.GHIDRA_HOME}/Ghidra/Features/Base/lib/Base.jar</ghidra.base.jar>
+      </properties>
+    </profile>
+
     <!-- Profile for building just the Ghidra plugin -->
     <profile>
       <id>plugin-only</id>
diff --git a/src/main/java/eu/starsong/ghidra/util/TransactionHelper.java b/src/main/java/eu/starsong/ghidra/util/TransactionHelper.java
index 27898bc..59bede2 100644
--- a/src/main/java/eu/starsong/ghidra/util/TransactionHelper.java
+++ b/src/main/java/eu/starsong/ghidra/util/TransactionHelper.java
@@ -38,7 +38,10 @@ public class TransactionHelper {
                     Msg.error(TransactionHelper.class, "Transaction failed: " + transactionName, e);
                 } finally {
                     if (txId >= 0) {
-                        success = program.endTransaction(txId, success);
+                        if (!program.endTransaction(txId, success)) {
+                            Msg.error(TransactionHelper.class, "Failed to end transaction: " + transactionName);
+                            exception.set(new TransactionException("Failed to end transaction: " + transactionName));
+                        }
                     }
                 }
             });
diff --git a/src/main/resources/META-INF/MANIFEST.MF b/src/main/resources/META-INF/MANIFEST.MF
index 840a5df..5c6980b 100644
--- a/src/main/resources/META-INF/MANIFEST.MF
+++ b/src/main/resources/META-INF/MANIFEST.MF
@@ -1,7 +1,7 @@
 Manifest-Version: 1.0
 Plugin-Class: eu.starsong.ghidra.GhydraMCP
 Plugin-Name: GhydraMCP
-Plugin-Version: 11.3.1
+Plugin-Version: 11.4.2
 Bundle-Version: dev-SNAPSHOT
 Plugin-Author: LaurieWired, Teal Bauer
 Plugin-Description: Expose multiple Ghidra tools to MCP servers with variable management
diff --git a/src/main/resources/extension.properties b/src/main/resources/extension.properties
index 4b45921..a10f811 100644
--- a/src/main/resources/extension.properties
+++ b/src/main/resources/extension.properties
@@ -2,5 +2,5 @@ name=GhydraMCP
 description=A multi-headed REST interface for Ghidra for use with MCP agents.
 author=Laurie Wired, Teal Bauer
 createdOn=2025-03-29
-version=11.3.1
-ghidraVersion=11.3.1
+version=11.4.2
+ghidraVersion=11.4.2