diff --git a/src/main/java/org/springframework/data/release/projectservice/DefaultProjectClient.java b/src/main/java/org/springframework/data/release/projectservice/DefaultProjectClient.java
index 4b801c9..ceeb869 100644
--- a/src/main/java/org/springframework/data/release/projectservice/DefaultProjectClient.java
+++ b/src/main/java/org/springframework/data/release/projectservice/DefaultProjectClient.java
@@ -78,12 +78,8 @@ class DefaultProjectClient implements ProjectService {
 		return operations.getForObject(resource, String.class);
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.release.sagan.SaganClient#updateProjectMetadata(org.springframework.data.release.model.Project, java.util.List)
-	 */
 	@Override
-	public void updateProjectMetadata(Project project, MaintainedVersions versions) {
+	public void updateProjectMetadata(Project project, MaintainedVersions versions, boolean delete, boolean update) {
 
 		URI resource = configuration.getProjectReleasesResource(project);
 
@@ -100,17 +96,17 @@ class DefaultProjectClient implements ProjectService {
 		boolean requiresDelete = requiresDeleteVersions(project, versionsToRetain, versionsInSagan);
 		boolean requiresWrite = requiresWriteVersions(versions, versionsInSagan);
 
-		if (requiresDelete || requiresWrite) {
+		if ((requiresDelete) && delete || (requiresWrite && update)) {
 			logger.log(project, "Updating project versions at %s…", resource);
 		}
 
-		if (requiresDelete) {
+		if (requiresDelete && delete) {
 
 			logger.log(project, "Deleting outdated project versions…", versionsString);
 			deleteExistingVersions(project, versionsToRetain);
 		}
 
-		if (requiresWrite) {
+		if (requiresWrite && update) {
 
 			logger.log(project, "Writing project versions %s.", versionsString);
 			createVersions(project, versions, resource, versionsInSagan);
diff --git a/src/main/java/org/springframework/data/release/projectservice/DummyProjectClient.java b/src/main/java/org/springframework/data/release/projectservice/DummyProjectClient.java
index 5a9a061..7e4c6bb 100644
--- a/src/main/java/org/springframework/data/release/projectservice/DummyProjectClient.java
+++ b/src/main/java/org/springframework/data/release/projectservice/DummyProjectClient.java
@@ -43,12 +43,8 @@ class DummyProjectClient implements ProjectService {
 	Logger logger;
 	ObjectWriter mapper;
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.springframework.data.release.sagan.SaganClient#updateProjectMetadata(org.springframework.data.release.model.Project, org.springframework.data.release.sagan.MaintainedVersions)
-	 */
 	@Override
-	public void updateProjectMetadata(Project project, MaintainedVersions versions) {
+	public void updateProjectMetadata(Project project, MaintainedVersions versions, boolean delete, boolean update) {
 
 		logger.log(project, "Updating released version on Sagan to %s!", versions);
 
diff --git a/src/main/java/org/springframework/data/release/projectservice/ProjectService.java b/src/main/java/org/springframework/data/release/projectservice/ProjectService.java
index aef3c2e..8f7a3f6 100644
--- a/src/main/java/org/springframework/data/release/projectservice/ProjectService.java
+++ b/src/main/java/org/springframework/data/release/projectservice/ProjectService.java
@@ -47,7 +47,19 @@ public interface ProjectService {
 	 * @param project must not be {@literal null}.
 	 * @param versions must not be {@literal null}.
 	 */
-	void updateProjectMetadata(Project project, MaintainedVersions versions);
+	default void updateProjectMetadata(Project project, MaintainedVersions versions) {
+		updateProjectMetadata(project, versions, true, true);
+	}
+
+	/**
+	 * Updates the project metadata for the given {@link Project} to the given {@link MaintainedVersions}.
+	 *
+	 * @param project must not be {@literal null}.
+	 * @param versions must not be {@literal null}.
+	 * @param delete
+	 * @param update
+	 */
+	void updateProjectMetadata(Project project, MaintainedVersions versions, boolean delete, boolean update);
 
 	/**
 	 * Verify correct authentication setup.
diff --git a/src/main/java/org/springframework/data/release/projectservice/ProjectServiceOperations.java b/src/main/java/org/springframework/data/release/projectservice/ProjectServiceOperations.java
index 79c44fc..b09c3f5 100644
--- a/src/main/java/org/springframework/data/release/projectservice/ProjectServiceOperations.java
+++ b/src/main/java/org/springframework/data/release/projectservice/ProjectServiceOperations.java
@@ -27,6 +27,7 @@ import java.util.Collections;
 import java.util.Comparator;
 import java.util.List;
 import java.util.Map;
+import java.util.Map.Entry;
 import java.util.concurrent.Executor;
 import java.util.stream.Collectors;
 
@@ -77,20 +78,25 @@ class ProjectServiceOperations {
 
 		Map<Project, MaintainedVersions> versions = findVersions(trains);
 
-		Streamable.of(versions.entrySet()).forEach(entry -> {
+		Streamable<Entry<Project, MaintainedVersions>> stream = Streamable.of(versions.entrySet()) //
+				.filter(entry -> {
+					return entry.getKey() != Projects.BOM && entry.getKey() != Projects.JDBC;
+				});
 
-			if (entry.getKey() == Projects.BOM) {
-				return;
-			}
-
-			if(entry.getKey() == Projects.JDBC){
-				return;
-			}
+		ExecutionUtils.run(executor, stream, entry -> {
 
 			// Sometimes we see 404 Not Found: [no body], sometimes
 			// 400 Bad Request: "Release '2.2.13-SNAPSHOT' already present
 			// still we should fail here and report those failures to the website team
-			client.updateProjectMetadata(entry.getKey(), entry.getValue());
+			client.updateProjectMetadata(entry.getKey(), entry.getValue(), true, false);
+		});
+
+		ExecutionUtils.run(executor, stream, entry -> {
+
+			// Sometimes we see 404 Not Found: [no body], sometimes
+			// 400 Bad Request: "Release '2.2.13-SNAPSHOT' already present
+			// still we should fail here and report those failures to the website team
+			client.updateProjectMetadata(entry.getKey(), entry.getValue(), false, true);
 		});
 	}