diff --git a/.mvn/extensions.xml b/.mvn/extensions.xml
index c191e39fcab..46300398980 100644
--- a/.mvn/extensions.xml
+++ b/.mvn/extensions.xml
@@ -3,6 +3,6 @@
   <extension>
     <groupId>org.eclipse.tycho.extras</groupId>
     <artifactId>tycho-pomless</artifactId>
-    <version>1.6.0</version>
+    <version>2.0.0</version>
   </extension>
 </extensions>
diff --git a/pom.xml b/pom.xml
index 7ed3fa2bd17..b6ca8caa4fa 100644
--- a/pom.xml
+++ b/pom.xml
@@ -30,7 +30,7 @@
 			 runs with. It may work with older versions, but this is not
 			 tested or supported. -->
 		<required-maven-version>3.6.3</required-maven-version>
-		<tycho-version>1.7.0</tycho-version>
+		<tycho-version>2.0.0</tycho-version>
 		<cbi-plugins.version>1.1.7</cbi-plugins.version>
 		<sonar.core.codeCoveragePlugin>jacoco</sonar.core.codeCoveragePlugin>
 		<cdt-site>http://ci.eclipse.org/cdt/job/cdt-master/lastSuccessfulBuild/artifact/releng/org.eclipse.cdt.repo/target/repository</cdt-site>
@@ -839,6 +839,7 @@
 						<timestampProvider>jgit</timestampProvider>
 						<jgit.ignore>
 							pom.xml
+							.polyglot.*
 						</jgit.ignore>
 						<jgit.dirtyWorkingTree>${jgit.dirtyWorkingTree-cdtDefault}</jgit.dirtyWorkingTree>
 						<sourceReferences>