high_performance_sql_filtering to unreleased

Author: andrew-3

app/views/pages/release-notes/unreleased.liquid

@@ -9,7 +9,9 @@ metadata:
 
 #### {{ page.metadata.description }}
 
-<!-- <h4 class="release-note release-note__new">NEW</h4> -->
+<h4 class="release-note release-note__new">NEW</h4>
+
+* high_performance_sql_filtering new instance configuration flag; if enabled, filtering on custom properties will use more efficient SQL queries. Default is false to maintain backward compatibility, but enabling it can lead to significant performance improvements for applications that heavily utilize custom property filtering.
 
 <!--<h4 class="release-note release-note__improved">IMPROVED</h4>-->