diff --git a/README.md b/README.md
index 8d63164..9848c28 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@
 
 System Requirements
 ===================
-You need a platform that supports [Java SE 11](https://www.oracle.com/java/technologies/javase-downloads.html).
+You need a platform that supports [Java SE 17](https://www.oracle.com/java/technologies/javase/jdk17-archive-downloads.html).
 
 
 Building and running
@@ -32,7 +32,7 @@
 To build from source code:
 
   - Requirements:
-    Sources compilation require `Java SE 11`, [Apache Maven 3.5.0 or later](https://maven.apache.org/).
+    Sources compilation require `Java SE 17`, [Apache Maven 3.5.0 or later](https://maven.apache.org/).
   - To build the OpenMeetings project run mvn in the root directory:
      `mvn clean install -PallModules`
   - To run the OpenMeetings project:
diff --git a/openmeetings-server/src/site/xdoc/BuildInstructions.xml b/openmeetings-server/src/site/xdoc/BuildInstructions.xml
index 0804851..0acde57 100644
--- a/openmeetings-server/src/site/xdoc/BuildInstructions.xml
+++ b/openmeetings-server/src/site/xdoc/BuildInstructions.xml
@@ -32,7 +32,7 @@
 			<div>
 				<p>To build a binary release of OpenMeetings you need: </p>
 				<ul>
-					<li>Oracle JDK11</li>
+					<li>Oracle JDK17</li>
 					<li>Apache Maven (minimum) 3.5.0</li>
 					<li>Git</li>
 				</ul>
diff --git a/openmeetings-server/src/site/xdoc/ReleaseGuide.xml b/openmeetings-server/src/site/xdoc/ReleaseGuide.xml
index 62b117e..79aba0e 100644
--- a/openmeetings-server/src/site/xdoc/ReleaseGuide.xml
+++ b/openmeetings-server/src/site/xdoc/ReleaseGuide.xml
@@ -26,7 +26,7 @@
 				<div>
 					<p>To build a binary release of OpenMeetings you need: </p>
 					<ul>
-						<li>JDK11</li>
+						<li>JDK17</li>
 						<li>Apache Maven 3.5.0</li>
 						<li>Git Command line client</li>
 						<li>A text editor</li>
diff --git a/openmeetings-server/src/site/xdoc/WebsiteGuide.xml b/openmeetings-server/src/site/xdoc/WebsiteGuide.xml
index b545910..74d5e0b 100644
--- a/openmeetings-server/src/site/xdoc/WebsiteGuide.xml
+++ b/openmeetings-server/src/site/xdoc/WebsiteGuide.xml
@@ -24,7 +24,7 @@
 			<subsection name="Required tools">
 				<div>
 					<ul>
-						<li>JDK11</li>
+						<li>JDK17</li>
 						<li>Apache Maven (3.5.0 or later)</li>
 					</ul>
 				</div>
diff --git a/openmeetings-server/src/site/xdoc/installation.xml b/openmeetings-server/src/site/xdoc/installation.xml
index eaa33dc..da35f1d 100644
--- a/openmeetings-server/src/site/xdoc/installation.xml
+++ b/openmeetings-server/src/site/xdoc/installation.xml
@@ -38,7 +38,7 @@
 						</li>
 						<li class="step download os">
 							<div><a href="downloads.html" rel="nofollow">Download latest .zip (.tar.gz)</a></div>
-							<div class="small">Java 11 required</div>
+							<div class="small">Java 17 required</div>
 						</li>
 						<li class="step unpack">
 							<div>Unpack + run bin/startup.bat (.sh)</div>
@@ -66,7 +66,7 @@
 					</script>
 				</div>
 				<p>
-					<i>Note: Openmeetings requires JRE 11, JRE 6/7/8 are NOT compatible!</i><br />
+					<i>Note: Openmeetings requires JRE 17, JRE 6/7/8/11 are NOT compatible!</i><br />
 					<i>
 						Since Version 2.0 you can also install OpenMeetings from command line. Just cd to the unpacked
 						archive and type ./admin.sh or admin.bat, please see
diff --git a/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_iw.properties.xml b/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_he.properties.xml
similarity index 100%
rename from openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_iw.properties.xml
rename to openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_he.properties.xml
diff --git a/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_in.properties.xml b/openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_id.properties.xml
similarity index 100%
rename from openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_in.properties.xml
rename to openmeetings-web/src/main/java/org/apache/openmeetings/web/app/Application_id.properties.xml
diff --git a/openmeetings-web/src/main/webapp/WEB-INF/classes/hazelcast.xml b/openmeetings-web/src/main/webapp/WEB-INF/classes/hazelcast.xml
index 0e64c18..e44aa16 100644
--- a/openmeetings-web/src/main/webapp/WEB-INF/classes/hazelcast.xml
+++ b/openmeetings-web/src/main/webapp/WEB-INF/classes/hazelcast.xml
@@ -21,7 +21,7 @@
 <hazelcast
 		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 		xmlns="http://www.hazelcast.com/schema/config"
-		xsi:schemaLocation="http://www.hazelcast.com/schema/config http://www.hazelcast.com/schema/config/hazelcast-config-5.0.xsd"
+		xsi:schemaLocation="http://www.hazelcast.com/schema/config http://www.hazelcast.com/schema/config/hazelcast-config-5.1.xsd"
 	>
 	<map name="ONLINE_USERS_KEY">
 		<near-cache>
diff --git a/openmeetings-web/src/main/webapp/languages/languages.xml b/openmeetings-web/src/main/webapp/languages/languages.xml
index bc1593a..601352d 100644
--- a/openmeetings-web/src/main/webapp/languages/languages.xml
+++ b/openmeetings-web/src/main/webapp/languages/languages.xml
@@ -34,7 +34,7 @@
 	<lang id="13" code="ko" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">korean</lang>
 	<lang id="14" code="ar" tip="ادخل الرمز هنا" rangeStart="1" rangeEnd="9">عربي</lang>
 	<lang id="15" code="ja" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">japanese</lang>
-	<lang id="16" code="in" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">indonesian</lang>
+	<lang id="16" code="id" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">indonesian</lang>
 	<lang id="17" code="hu" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">hungarian</lang>
 	<lang id="18" code="tr" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">turkish</lang>
 	<lang id="19" code="uk" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">ukrainian</lang>
@@ -46,7 +46,7 @@
 	<lang id="25" code="pl" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">polish</lang>
 	<lang id="26" code="el" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">greek</lang>
 	<lang id="27" code="nl" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">dutch</lang>
-	<lang id="28" code="iw" tip="Only capital Latin letters A-Z" rangeStart="א" rangeEnd="ת">hebrew</lang>
+	<lang id="28" code="he" tip="Only capital Latin letters A-Z" rangeStart="א" rangeEnd="ת">hebrew</lang>
 	<lang id="29" code="ca" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">catalan</lang>
 	<lang id="30" code="bg" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">bulgarian</lang>
 	<lang id="31" code="da" tip="Only capital Latin letters A-Z" rangeStart="A" rangeEnd="Z">danish</lang>
diff --git a/pom.xml b/pom.xml
index 5b14963..105c032 100644
--- a/pom.xml
+++ b/pom.xml
@@ -40,7 +40,7 @@
 		<logback.console></logback.console>
 		<db>h2</db>
 		<autoModuleName>apache.openmeetings.parent</autoModuleName>
-		<jdk.version>11</jdk.version>
+		<jdk.version>17</jdk.version>
 		<!-- plugin versions -->
 		<maven-javadoc-plugin.version>3.4.0</maven-javadoc-plugin.version>
 		<maven-surefire-plugin.version>3.0.0-M6</maven-surefire-plugin.version>