diff --git a/diozero-bom/pom.xml b/diozero-bom/pom.xml
index 167c2f2f..20cc62de 100644
--- a/diozero-bom/pom.xml
+++ b/diozero-bom/pom.xml
@@ -63,34 +63,34 @@
 
 		<!-- Maven plugins -->
 		<maven-compiler-plugin.version>3.12.1</maven-compiler-plugin.version>
-		<maven-assembly-plugin.version>3.6.0</maven-assembly-plugin.version>
+		<maven-assembly-plugin.version>3.7.0</maven-assembly-plugin.version>
 		<maven-javadoc-plugin.version>3.6.3</maven-javadoc-plugin.version>
 		<maven-jar-plugin.version>3.3.0</maven-jar-plugin.version>
-		<maven-shade-plugin.version>3.5.1</maven-shade-plugin.version>
+		<maven-shade-plugin.version>3.5.2</maven-shade-plugin.version>
 		<maven-source-plugin.version>3.3.0</maven-source-plugin.version>
 		<maven-install-plugin.version>3.1.1</maven-install-plugin.version>
 		<maven-deploy-plugin.version>3.1.1</maven-deploy-plugin.version>
-		<maven-gpg-plugin.version>3.1.0</maven-gpg-plugin.version>
+		<maven-gpg-plugin.version>3.2.0</maven-gpg-plugin.version>
 		<maven-release-plugin.version>3.0.1</maven-release-plugin.version>
-		<maven-surefire-plugin.version>3.2.3</maven-surefire-plugin.version>
+		<maven-surefire-plugin.version>3.2.5</maven-surefire-plugin.version>
 
 		<!-- Other plugins -->
 		<nexus-staging-maven-plugin.version>1.6.13</nexus-staging-maven-plugin.version>
-		<license-maven-plugin.version>2.3.0</license-maven-plugin.version>
+		<license-maven-plugin.version>2.4.0</license-maven-plugin.version>
 		<versions-maven-plugin.version>2.16.2</versions-maven-plugin.version>
-		<exec-maven-plugin.version>3.1.1</exec-maven-plugin.version>
+		<exec-maven-plugin.version>3.2.0</exec-maven-plugin.version>
 		<eclipse.m2e.lifecycle-mapping.version>1.0.0</eclipse.m2e.lifecycle-mapping.version>
 
 		<!-- Libraries -->
-		<tinylog.version>2.6.2</tinylog.version>
+		<tinylog.version>2.7.0</tinylog.version>
 		<hipparchus.version>3.0</hipparchus.version>
 		<eclipse-paho-client-mqttv3.version>1.2.5</eclipse-paho-client-mqttv3.version>
 		<google-gson.version>2.10.1</google-gson.version>
-		<google-protobuf-java.version>3.25.1</google-protobuf-java.version>
-		<netty.version>4.1.104.Final</netty.version>
-		<grpc.version>1.60.1</grpc.version>
-		<junit.version>5.10.1</junit.version>
-		<mockito.version>5.8.0</mockito.version>
+		<google-protobuf-java.version>3.25.2</google-protobuf-java.version>
+		<netty.version>4.1.107.Final</netty.version>
+		<grpc.version>1.62.2</grpc.version>
+		<junit.version>5.10.2</junit.version>
+		<mockito.version>5.11.0</mockito.version>
 	</properties>
 
 	<!-- Prepare common library versions -->
@@ -328,7 +328,8 @@
 				<artifactId>maven-release-plugin</artifactId>
 				<configuration>
 					<autoVersionSubmodules>true</autoVersionSubmodules>
-					<useReleaseProfile>true</useReleaseProfile>
+					<!-- <useReleaseProfile>true</useReleaseProfile> -->
+					<useReleaseProfile>false</useReleaseProfile>
 					<releaseProfiles>release</releaseProfiles>
 					<goals>deploy</goals>
 				</configuration>
diff --git a/diozero-core/src/main/java/com/diozero/devices/oled/DisplayType.java b/diozero-core/src/main/java/com/diozero/devices/oled/DisplayType.java
index 4c58c442..f9e20159 100644
--- a/diozero-core/src/main/java/com/diozero/devices/oled/DisplayType.java
+++ b/diozero-core/src/main/java/com/diozero/devices/oled/DisplayType.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Core
  * Filename:     DisplayType.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-core/src/main/java/com/diozero/devices/oled/MonochromeSsdOled.java b/diozero-core/src/main/java/com/diozero/devices/oled/MonochromeSsdOled.java
index 23aabf30..fa75fd70 100644
--- a/diozero-core/src/main/java/com/diozero/devices/oled/MonochromeSsdOled.java
+++ b/diozero-core/src/main/java/com/diozero/devices/oled/MonochromeSsdOled.java
@@ -4,7 +4,7 @@
  * Organisation: diozero
  * Project:      diozero - Core
  * Filename:     MonochromeSsdOled.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -16,10 +16,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-core/src/main/java/com/diozero/devices/oled/SH1106.java b/diozero-core/src/main/java/com/diozero/devices/oled/SH1106.java
index e21a4921..09954cba 100644
--- a/diozero-core/src/main/java/com/diozero/devices/oled/SH1106.java
+++ b/diozero-core/src/main/java/com/diozero/devices/oled/SH1106.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Core
  * Filename:     SH1106.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-core/src/main/java/com/diozero/devices/oled/SSD1306.java b/diozero-core/src/main/java/com/diozero/devices/oled/SSD1306.java
index 35914c5b..f2c42eb3 100644
--- a/diozero-core/src/main/java/com/diozero/devices/oled/SSD1306.java
+++ b/diozero-core/src/main/java/com/diozero/devices/oled/SSD1306.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Core
  * Filename:     SSD1306.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-core/src/main/java/com/diozero/devices/oled/SsdOledCommunicationChannel.java b/diozero-core/src/main/java/com/diozero/devices/oled/SsdOledCommunicationChannel.java
index 3dcd509c..07ee8afc 100644
--- a/diozero-core/src/main/java/com/diozero/devices/oled/SsdOledCommunicationChannel.java
+++ b/diozero-core/src/main/java/com/diozero/devices/oled/SsdOledCommunicationChannel.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Core
  * Filename:     SsdOledCommunicationChannel.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-example/.classpath b/diozero-example/.classpath
index 85b85bfe..77f1c8aa 100644
--- a/diozero-example/.classpath
+++ b/diozero-example/.classpath
@@ -3,6 +3,7 @@
 	<classpathentry excluding="**" kind="src" output="target/classes" path="src/main/resources">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="optional" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-11">
@@ -28,5 +29,12 @@
 			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
+	<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
+		<attributes>
+			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
+			<attribute name="optional" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
 </classpath>
diff --git a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/MonochromeSsdOledBase.java b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/MonochromeSsdOledBase.java
index f2ae9517..b8f0dcf1 100644
--- a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/MonochromeSsdOledBase.java
+++ b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/MonochromeSsdOledBase.java
@@ -4,8 +4,8 @@
  * #%L
  * Organisation: diozero
  * Project:      diozero - Sample applications
- * Filename:     MonochromeSsdOledTest.java
- *
+ * Filename:     MonochromeSsdOledBase.java
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SH1106Test.java b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SH1106Test.java
index bbc75870..d22ab8c5 100644
--- a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SH1106Test.java
+++ b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SH1106Test.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Sample applications
  * Filename:     SH1106Test.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1306Test.java b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1306Test.java
index 7990c812..2e9ac159 100644
--- a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1306Test.java
+++ b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1306Test.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Sample applications
  * Filename:     SSD1306Test.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1331Test.java b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1331Test.java
index a41d2d0b..2cd394be 100644
--- a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1331Test.java
+++ b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1331Test.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Sample applications
  * Filename:     SSD1331Test.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
diff --git a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1351Test.java b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1351Test.java
index 4e8e86ae..73961230 100644
--- a/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1351Test.java
+++ b/diozero-sampleapps/src/main/java/com/diozero/sampleapps/oled/SSD1351Test.java
@@ -5,7 +5,7 @@
  * Organisation: diozero
  * Project:      diozero - Sample applications
  * Filename:     SSD1351Test.java
- *
+ * 
  * This file is part of the diozero project. More information about this project
  * can be found at https://www.diozero.com/.
  * %%
@@ -17,10 +17,10 @@
  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  * copies of the Software, and to permit persons to whom the Software is
  * furnished to do so, subject to the following conditions:
- *
+ * 
  * The above copyright notice and this permission notice shall be included in
  * all copies or substantial portions of the Software.
- *
+ * 
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE