Issues

• CancellationToken has no effect until Command Timeout while the server doesn't answer the prepended DISCARD ALL

  npgsql/npgsql#6662 · Filter by author lahma opened on Oct 2, 2026

• GSS encryption fallback (GssEncryptionMode=Prefer) can retry on a second socket without the connection Timeout — Open blocks until the peer closes (~2%)

  Bug

  npgsql/npgsql#6655 · Filter by author zarkomatejic opened on Sep 22, 2026 · 10.0.4
  4

  

• Random error while 'SELECT', PostgreSQL v17.11-3, Zebra MC3401, Android 14, Visual Studio 2022, C#, .Net9.0, Ngpsql 8.0.9, Npgsql 9.0.5, Npgsql 10.0.3

  npgsql/npgsql#6652 · Filter by author eaktivo opened on Sep 22, 2026

• _text type column is skipped when binding a DataTable

  npgsql/npgsql#6643 · Filter by author dca00 opened on Sep 10, 2026
  3

• VolatileResourceManager does not call preparingEnlistment.ForceRollback when Postgres transaction is aborted

  npgsql/npgsql#6641 · Filter by author thuustalu opened on Sep 8, 2026
  3

• Received unknown response E for SSLRequest (expecting S or N)

  Bug

  npgsql/npgsql#6600 · Filter by author Pat28 opened on Jun 8, 2026 · 10.0.4
  1

  

• Heads-up: intermittent SIGSEGV after upgrading to 10.0.3 (likely a krb5/Alpine issue)

  npgsql/npgsql#6596 · Filter by author maartenkools opened on Jun 1, 2026
  2

• Allow more customization of Pool behavior

  npgsql/npgsql#6595 · Filter by author DavidSchuldenfrei opened on Jun 1, 2026
  1

• NpgsqlBinaryImporter Invalid exception message in ThrowColumnMismatch

  npgsql/npgsql#6583 · Filter by author andreas-aris opened on May 20, 2026
  1

• Load composite field typmods

  area-serialization
  Feature

  npgsql/npgsql#6582 · Filter by author NinoFloris opened on May 20, 2026

• Odd behavior with JsonNode as parameter.

  npgsql/npgsql#6578 · Filter by author PetSerAl opened on May 17, 2026
  1

• NpgsqlRange Upper- and LowerBoundInfinite Return Incorrect Value

  npgsql/npgsql#6569 · Filter by author TheTedder opened on May 10, 2026
  2

• BeginBinaryImportAsync doesn't import Altitude

  npgsql/npgsql#6567 · Filter by author smolesen opened on May 8, 2026
  4

• Automatically test Nullable<T> for struct types in AssertType

  npgsql/npgsql#6550 · Filter by author NinoFloris opened on Apr 20, 2026

• Add support for GSS delegation to GSS session encryption and GSS authentication

  Feature

  npgsql/npgsql#6540 · Filter by author vonzshik opened on Apr 13, 2026 · Backlog

• Connections hang in SSL negotiation when GssEncryptionMode=Prefer (default) on Linux without Kerberos, causing OOM

  npgsql/npgsql#6524 · Filter by author netijoe opened on Mar 31, 2026
  12

• Disposing a pooled data source does not release pending connection opens

  npgsql/npgsql#6514 · Filter by author brianpursley opened on Mar 17, 2026

• IndexOutOfRangeException in PgNumeric.Builder.ToDecimal() when reading many numeric rows (sync path, 8.0.9)

  area-serialization
  Feature

  npgsql/npgsql#6509 · Filter by author wumian1360 opened on Mar 17, 2026 · 10.0.4
  10

  

• Multi-host failover causes user-facing connection delays after HostRecheckSeconds

  npgsql/npgsql#6483 · Filter by author Florian3007 opened on Mar 11, 2026
  3

• Updating to v10.0.1 causes OpenConnectionAsync to hang forever

  npgsql/npgsql#6467 · Filter by author doomchild opened on Mar 4, 2026
  18

• Discrepancy between NpgsqlConnectionStringBuilder.Keys and NpgsqlConnectionStringBuilder.ContainsKey

  npgsql/npgsql#6463 · Filter by author KeterSCP opened on Mar 2, 2026
  3

• Cache for CompositeBuilder<T>

  area-serialization
  npgsql/npgsql#6452 · Filter by author YurasovDV opened on Feb 18, 2026
  3

• How to retrieve number of rows copied (bulk inserted) from COPY through BeginTextImport

  npgsql/npgsql#6430 · Filter by author guidol-ive opened on Jan 29, 2026
  2

• Severe performance issue in Npgsql 10 when PGSSLROOTCERT is set to system store

  npgsql/npgsql#6417 · Filter by author SReicheltPTV opened on Jan 21, 2026

• Exception storm due to GSS encryption in version 10

  npgsql/npgsql#6416 · Filter by author elgerm opened on Jan 21, 2026
  12