Rename LatestVersionMergePolicy for a more intuitive name compatibility with the factory

changelog/unreleased/PR#3986-rename-LatestVersionFilterMergePolicy-to-LatestVersionMergePolicy.yml

@@ -0,0 +1,8 @@
+# See https://github.com/apache/solr/blob/main/dev-docs/changelog.adoc
+title: Rename LatestVersionFilterMergePolicy to LatestVersionMergePolicy
+type: changed
+authors:
+  - name: Rahul Goswami
+links:
+  - name: PR#3986
+    url: https://github.com/apache/solr/pull/3986

solr/core/src/java/org/apache/solr/index/LatestVersionFilterMergePolicy.java → solr/core/src/java/org/apache/solr/index/LatestVersionMergePolicy.java

@@ -33,9 +33,9 @@
  * upgrading to a future Lucene major version if existing documents are reindexed in the current
  * version with this merge policy in place.
  */
-public class LatestVersionFilterMergePolicy extends FilterMergePolicy {
+public class LatestVersionMergePolicy extends FilterMergePolicy {
 
-  public LatestVersionFilterMergePolicy(MergePolicy in) {
+  public LatestVersionMergePolicy(MergePolicy in) {
     super(in);
   }
 

solr/core/src/java/org/apache/solr/index/LatestVersionMergePolicyFactory.java

@@ -22,7 +22,7 @@
 import org.apache.solr.schema.IndexSchema;
 
 /**
- * A {@link MergePolicyFactory} for {@link LatestVersionFilterMergePolicy} objects. The returned
+ * A {@link MergePolicyFactory} for {@link LatestVersionMergePolicy} objects. The returned
  * LatestVersionFilterMergePolicy instance blocks older version segments (< current version of
  * Lucene) from participating in merges and delegates the merging to a TieredMergePolicy instance by
  * default. This can be used to reindex the data and ensure all segments are the latest version
@@ -38,6 +38,6 @@ public LatestVersionMergePolicyFactory(
 
   @Override
   protected MergePolicy getMergePolicyInstance() {
-    return new LatestVersionFilterMergePolicy(new TieredMergePolicy());
+    return new LatestVersionMergePolicy(new TieredMergePolicy());
   }
 }