re-enable bwc testing and change version to prevent fail

Signed-off-by: Nicholas Walter Knize <nknize@apache.org>

build.gradle

@@ -225,10 +225,10 @@ tasks.register("verifyVersions") {
  * after the backport of the backcompat code is complete.
  */
 
-boolean bwc_tests_enabled = false
+boolean bwc_tests_enabled = true
 
 /* place an issue link here when committing bwc changes */
-String bwc_tests_disabled_issue = "https://github.com/opensearch-project/OpenSearch/issues/9349"
+String bwc_tests_disabled_issue = ""
 
 /* there's no existing MacOS release, therefore disable bcw tests */
 if (Os.isFamily(Os.FAMILY_MAC)) {

server/src/main/java/org/opensearch/search/DocValueFormat.java

@@ -248,7 +248,7 @@ public DateTime(StreamInput in) throws IOException {
             String zoneId = in.readString();
             this.timeZone = ZoneId.of(zoneId);
             this.resolution = DateFieldMapper.Resolution.ofOrdinal(in.readVInt());
-            if (in.getVersion().before(Version.V_2_10_0)) {
+            if (in.getVersion().before(Version.V_3_0_0)) {
                 in.readBoolean(); // ignore deprecated joda
             }
         }
@@ -263,7 +263,7 @@ public void writeTo(StreamOutput out) throws IOException {
             out.writeString(formatter.pattern());
             out.writeString(timeZone.getId());
             out.writeVInt(resolution.ordinal());
-            if (out.getVersion().before(Version.V_2_10_0)) {
+            if (out.getVersion().before(Version.V_3_0_0)) {
                 out.writeBoolean(false); // ignore deprecated joda flag
             }
         }