alpha.2 should be upgradeable to alpha.3 (#14208)

Co-authored-by: Siedlerchr <[email protected]>

Author: koppor

jabgui/src/main/java/org/jabref/gui/help/VersionWorker.java

@@ -19,11 +19,11 @@
 import org.slf4j.LoggerFactory;
 
 /**
- * This worker checks if there is a new version of JabRef available. If there is it will display a dialog to the user
+ * This worker checks if there is a new version of JabRef available. If there is, it will display a dialog to the user
  * offering him multiple options to proceed (see changelog, go to the download page, ignore this version, and remind
  * later).
  * <p>
- * If the versions check is executed manually and this is the latest version it will also display a dialog to inform the
+ * If the version check is executed manually and this is the latest version, it will also display a dialog to inform the
  * user.
  */
 public class VersionWorker {

jablib/src/main/java/org/jabref/logic/util/Version.java

@@ -26,7 +26,7 @@ public class Version {
 
     private static final Version UNKNOWN_VERSION = new Version();
 
-    private final static Pattern VERSION_PATTERN = Pattern.compile("(?<major>\\d+)(\\.(?<minor>\\d+))?(\\.(?<patch>\\d+))?(?<stage>-alpha|-beta)?(?<num>\\d+)?(?<dev>-?dev)?.*");
+    private final static Pattern VERSION_PATTERN = Pattern.compile("(?<major>\\d+)(\\.(?<minor>\\d+))?(\\.(?<patch>\\d+))?(?<stage>-alpha|-beta)?(?:[._]?(?<num>\\d+))?(?<dev>-?dev)?.*");
     private final static Pattern CI_SUFFIX_PATTERN = Pattern.compile("-ci\\.\\d+");
 
     private static final String JABREF_GITHUB_RELEASES = "https://api.github.com/repos/JabRef/JabRef/releases";

jablib/src/test/java/org/jabref/logic/util/VersionTest.java

@@ -285,6 +285,13 @@ void alphaShouldBeUpdatedToBeta() {
         assertTrue(alpha.shouldBeUpdatedTo(beta));
     }
 
+    @Test
+    void alphaTwoShouldBeUpdatedToAlpha3() {
+        Version alpha2 = Version.parse("6.0-alpha.2");
+        Version alpha3 = Version.parse("6.0-alpha.3");
+        assertTrue(alpha2.shouldBeUpdatedTo(alpha3));
+    }
+
     @Test
     void betaShouldBeUpdatedToStable() {
         Version beta = Version.parse("2.8-beta");