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

Status: Open.

Bug

#6600 In npgsql/npgsql;

· Pat28 opened on Jun 8, 2026

·  

10.0.4

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

Status: Open.

#6596 In npgsql/npgsql;

· maartenkools opened on Jun 1, 2026

Allow more customization of Pool behavior

Status: Open.

#6595 In npgsql/npgsql;

· DavidSchuldenfrei opened on Jun 1, 2026

NpgsqlBinaryImporter Invalid exception message in ThrowColumnMismatch

Status: Open.

#6583 In npgsql/npgsql;

· andreas-aris opened on May 20, 2026

Load composite field typmods

area-serialization

Status: Open.

Feature

#6582 In npgsql/npgsql;

· NinoFloris opened on May 20, 2026

Odd behavior with JsonNode as parameter.

Status: Open.

#6578 In npgsql/npgsql;

· PetSerAl opened on May 17, 2026

NpgsqlRange Upper- and LowerBoundInfinite Return Incorrect Value

Status: Open.

#6569 In npgsql/npgsql;

· TheTedder opened on May 10, 2026

BeginBinaryImportAsync doesn't import Altitude

Status: Open.

#6567 In npgsql/npgsql;

· smolesen opened on May 8, 2026

Automatically test Nullable<T> for struct types in AssertType

Status: Open.

#6550 In npgsql/npgsql;

· NinoFloris opened on Apr 20, 2026

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

Status: Open.

Feature

#6540 In npgsql/npgsql;

· vonzshik opened on Apr 13, 2026

·  

Backlog

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

Status: Open.

#6524 In npgsql/npgsql;

· netijoe opened on Mar 31, 2026

Disposing a pooled data source does not release pending connection opens

Status: Open.

#6514 In npgsql/npgsql;

· brianpursley opened on Mar 17, 2026