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COMPATIBILITY.MD

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latest server compatibility issues

  1. 🦖 GeoSearch and GeoHaystack operations were removed from 4.9.0 server. These operations are from legacy part of the driver and server returns quite comprehensible exception. See respective ticket: CSHARP-3249: Skip geoSearch and geoHaystack tests when running against server version that doesn't support these commands
  2. truncatedArrays field is not handled in ChangeStreamDocument.UpdateDescription property deserialization, causing the access to the property throw and exception System.FormatException : Invalid field name: "truncatedArrays". since server version 4.9.0. Other properties work as intended. See respective ticket: CSHARP-3212: Add new field truncatedArrays into cursor.nextBatch.updateDescription
  3. CreateIndexesOperation result field expireAfterSeconds value is rounded since server version 4.9.0. See respective ticket: CSHARP-3294: Fix CreateIndexesOperationTests tests on latests
  4. 🦖 GridFS.Download not working on sharded cluster configuration. See respective ticket: CSHARP-3423: Fix CSharp269Tests.TestUploadAndDownload GridFs test on sharded cluster