release updates per 15th April

Author: AvijitkGupta

articles/cosmos-db/mongodb/vcore/release-notes.md

@@ -2,40 +2,52 @@
 title: Service release notes
 titleSuffix: Azure Cosmos DB for MongoDB vCore
 description: Includes a list of all feature updates, grouped by release date, for the Azure Cosmos DB for MongoDB vCore service.
-author: seesharprun
+author: avijitgupta
 ms.author: avijitgupta
 ms.reviewer: gahllevy
 ms.service: cosmos-db
 ms.subservice: mongodb-vcore
 ms.topic: release-notes
-ms.date: 03/22/2024
+ms.date: 04/16/2024
 #Customer intent: As a database administrator, I want to review the release notes, so I can understand what new features are released for the service.
 ---
 
 # Release notes for Azure Cosmos DB for MongoDB vCore
 
 This article contains release notes for the API for MongoDB vCore. These release notes are composed of feature release dates, and feature updates.
 
-## Latest release: March 18, 2024
+## Latest release: April 16, 2024
+
+- Query operator enhancements.
+  - $centerSphere with index pushdown along with support for GeoJSON coordinates.
+  - $graphLookup support.
+  - $push accumulator. (Private Preview)
+
+- Performance improvements.
+  - $exists, { $eq: null}, {$ne: null} by adding new index terms.
+  - scans with $in/$nq/$ne in the index.
+  - compare partial (Range) queries.
+
+## Previous releases
+
+### March 18, 2024
 
 - [Private Endpoint](how-to-private-link.md) support enabled on Portal. (GA)
 - [HNSW](vector-search.md) vector index on M40 & larger cluster tiers. (GA)
 - Enable Geo-spatial queries. (Public Preview)
 - Query operator enhancements.
-	- $centerSphere with index pushdown.
-	- $min & $max operator with $project.
-	- $binarySize aggregation operator.
+  - $centerSphere with index pushdown.
+  - $min & $max operator with $project.
+  - $binarySize aggregation operator.
 - Ability to build indexes in background (except Unique indexes). (Public Preview)
 - Significant performance improvements for $ne/$eq/$in queries.
 - Performance improvements up to 30% on Range queries (involving index pushdown).
 
-## Previous releases
-
 ### March 03, 2024
+
 This release contains enhancements to the **Explain** plan and various vector filtering abilities.
 
 - The API for MongoDB vCore allows filtering by metadata columns while performing vector searches.
-
 - The `Explain` plan offers two different modes
 
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