Migrator offers more API for accessing Releases.

plugins/org.eclipse.emf.edapt.history/src/org/eclipse/emf/edapt/migration/execution/Migrator.java

diff --git a/plugins/org.eclipse.emf.edapt.history/src/org/eclipse/emf/edapt/migration/execution/Migrator.java b/plugins/org.eclipse.emf.edapt.history/src/org/eclipse/emf/edapt/migration/execution/Migrator.java
index 47babb2..7fdcd49 100644
--- a/plugins/org.eclipse.emf.edapt.history/src/org/eclipse/emf/edapt/migration/execution/Migrator.java
+++ b/plugins/org.eclipse.emf.edapt.history/src/org/eclipse/emf/edapt/migration/execution/Migrator.java
@@ -196,7 +196,7 @@
 	}
 
 	/** Get the latest release. */
-	private Release getLatestRelease() {
+	public Release getLatestRelease() {
 		List<Release> releases = history.getReleases();
 		return releases.get(releases.size() - 2);
 	}
@@ -270,6 +270,11 @@
 		return releaseMap.containsKey(nsURI) ? releaseMap.get(nsURI)
 				: Collections.<Release> emptySet();
 	}
+	
+	/** Get the release map from NS-URI to releases */
+	public Map<String, Set<Release>> getReleaseMap() {
+		return releaseMap;
+	}
 
 	/** Get the release with a certain number. */
 	public Release getRelease(int number) {