Add .NET 10 support

[okramarenko]

Note

High Risk
High risk because it changes connection/authentication handshake logic (adds caching_sha2_password handling, new parsec auth, and refactors password-hash flow used for TLS fingerprint validation), plus introduces a new binary VECTOR column type and related parameter/bulk-copy serialization paths.

Overview
Adds .NET 10 support across the repo (CI builds/tests, net10.0 TFM, updated language version, and dependency bumps), and replaces the legacy solution file with a new SingleStoreConnector.slnx.

Extends authentication support by introducing IAuthenticationPlugin3 (response + password hash), updating Ed25519 to implement it, adding a new PARSEC authentication plugin, and updating ServerSession/handshake payload creation to support caching_sha2_password, improved RSA public-key retrieval, and certificate-fingerprint validation based on stored password hashes.

Adds VECTOR type support end-to-end: new protocol ColumnType.Vector, type mapping to ReadOnlyMemory<float>, a VectorColumnReader, float-array parameter/bulk-load/bulk-copy serialization, and GUID out-parameter casting/size propagation to preserve correct result typing. Also includes several reliability tweaks (pool payload cache trimming, better reset/OK verification helper, XA rollback edge cases, proxy detection updates) and an opt-outable tracing event via SingleStoreDataSourceBuilder.ConfigureTracing.

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[cursor]

Iteration count byte truncation corrupts password hash

High Severity

(byte) iterationCount always evaluates to 0 because iterationCount is 1024 << extendedSalt[1], producing values 1024, 2048, 4096, or 8192 — all multiples of 256. The second byte of passwordHash will always be 0 regardless of the actual iteration exponent. The intent is to store the original exponent byte (extendedSalt[1]), not the computed iterationCount cast to byte.

Additional Locations (1)

• src/SingleStoreConnector.Authentication.Ed25519/ParsecAuthenticationPlugin.cs#L61-L62

 

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[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

There are 2 total unresolved issues (including 1 from previous review).

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^{Reviewed by Cursor Bugbot for commit 501f031. Configure here.}

[cursor]

Bulk copy throws for tables with extra special columns

Medium Severity

The loop bound changed from Math.Min(m_valuesEnumerator!.FieldCount, schema.Count) to schema.Count. When the destination table has more columns than the source and addDefaultMappings is true, AddColumnMapping creates mappings with SourceOrdinal equal to the destination schema index (which exceeds FieldCount). The validation at line 290 then throws InvalidOperationException because SourceOrdinal >= m_valuesEnumerator.FieldCount.

Additional Locations (1)

• src/SingleStoreConnector/SingleStoreBulkCopy.cs#L287-L291

 

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