v0.31.0

• Fixed bug Topic Writer: ignore UpdateTokenResponse while processing write acknowledgements to avoid NullReferenceException.

• Breaking Change ADO.NET tracing: Renamed span ydb.ExecuteWithRetry → ydb.RunWithRetry and ydb.Retry → ydb.Try. The first attempt is now always wrapped in ydb.Try (previously the first attempt's child spans attached directly to ydb.RunWithRetry).

• Feat ADO.NET tracing: Finalized span set. ActivitySource name: Ydb.Sdk. Enable via TracerProviderBuilder.AddYdb() from Ydb.Sdk.OpenTelemetry.

  Span	Kind	Description
  ydb.Driver.Initialize	Internal	Driver first initialization (discovery + auth handshake)
  ydb.CreateSession	Client	Session creation (gRPC CreateSession + AttachStream)
  ydb.RunWithRetry	Internal	Wraps the entire retry loop for a single ADO.NET operation
  ydb.Try	Internal	One span per attempt, including the first; child RPC spans attach here
  ydb.ExecuteQuery	Client	Individual YQL query execution
  ydb.Commit	Client	Transaction commit
  ydb.Rollback	Client	Transaction rollback

  ydb.RunWithRetry / ydb.Try lifecycle: ydb.RunWithRetry is the outer span for the whole operation; ydb.Try wraps each attempt including the first. Retry spans carry ydb.retry.backoff_ms. On non-retryable error or retries exhausted both ydb.Try and ydb.RunWithRetry receive error status. On cancellation error.type is set to the exception type full name.

  Tags propagated on RPC spans:

  Tag	Description
  db.system.name	Always "ydb"
  db.namespace	YDB database path
  server.address / server.port	Primary endpoint from connection string
  network.peer.address / network.peer.port	Actual gRPC endpoint used for the call
  ydb.node.id / ydb.node.dc	YDB node identity
  db.response.status_code	YDB status code (on YdbException)
  error.type	"transport_error" for client transport codes, "ydb_error" for database errors, or the full exception type name for other exceptions

  W3C trace context (traceparent) is automatically propagated to YDB server so server-side traces link to client spans.

Feat ADO.NET metrics (beta): Added OpenTelemetry metrics. Meter name: Ydb.Sdk. Enable via MeterProviderBuilder.AddYdb() from Ydb.Sdk.OpenTelemetry.

Metric	Kind	Unit	Tags	Description
ydb.client.operation.duration	Histogram	s	database, endpoint, operation.name	Latency of each actual ExecuteQuery / Commit / Rollback attempt
ydb.client.operation.failed	Counter	{operation}	database, endpoint, operation.name, status_code	Unsuccessful operation attempts
ydb.query.session.count	ObservableGauge	{session}	ydb.query.session.pool.name, ydb.query.session.state	Current pool session counts
ydb.query.session.create_time	Histogram	s	ydb.query.session.pool.name	Session creation cost (CreateSession + first AttachStream message)
ydb.query.session.pending_requests	Counter	{request}	ydb.query.session.pool.name	Increments when a caller starts waiting; use rate for wait pressure
ydb.query.session.timeouts	Counter	{timeout}	ydb.query.session.pool.name	Session acquisition timeouts
ydb.query.session.max	ObservableGauge	{session}	ydb.query.session.pool.name	Configured MaxPoolSize
ydb.query.session.min	ObservableGauge	{session}	ydb.query.session.pool.name	Configured MinPoolSize

• Feat ADO.NET metrics: Added PoolName connection string option. When set, reported as the ydb.query.session.pool.name metric attribute; defaults to the full connection string.
• Fixed bug: EndpointPool.PessimizeEndpoint / routing used node id only; in serverless mode (nodeId == 0) pessimization and sticky session routing did not work correctly — pessimization and pool lookup are now keyed by gRPC endpoint (http(s)://host:port).
• Feat: Session attach stream handles NodeShutdown and SessionShutdown hints (deprioritizes endpoint on node shutdown, marks session broken on shutdown hints).

Full Changelog: v0.30.0...v0.31.0

v0.30.0

• Upgraded target framework from .NET 6/7 to .NET 8.

Full Changelog: v0.29.0...v0.30.0

v0.29.0

• Feat ADO.NET: Added support for reading and writing JSON values as System.Text.Json.JsonDocument and System.Text.Json.JsonElement (for YdbDbType.Json/JsonDocument).
• Fixed bug: NPE in Writer.DisposeAsync().
• Fixed bug: Driver ownership lifecycle is now synchronized to prevent race conditions.
• Breaking Change: IDriver no longer implements IDisposable (interface slated to mark internal).
• Feat ADO.NET tracing: Added spans for QueryService operations:
  • ydb.CreateSession
  • ydb.ExecuteQuery
  • ydb.Commit
  • ydb.Rollback
• Feat ADO.NET tracing: Added/propagated tags on spans:
  • db.system.name
  • db.namespace
  • server.address
  • server.port
  • network.peer.address
  • network.peer.port
  • db.response.status_code (for YdbException)
  • error.type
  • ydb.node.id
  • ydb.node.dc
• Feat ADO.NET tracing: Added retry attempt span ydb.ExecuteWithRetry:
  • ydb.retry.attempt
  • ydb.retry.backoff_ms

Full Changelog: v0.28.0...v0.29.0

ef-v0.4.2

• Fixed bug: json columns to string property mapping.

Full Changelog: v0.4.1...v0.4.2

ef-v0.4.1

• Fixed bug: EF Code First now generates correct serial column types for key properties with ValueGeneratedOnAdd:
  • Int64 -> Bigserial
  • Int32 -> Serial
  • Int16 -> SmallSerial
• Fixed bug: HasDefaultValue(...) / HasDefaultValueSql(...) no longer cause incorrect serial mapping for ValueGeneratedOnAdd columns.

Full Changelog: v0.4.0...v0.4.1

v0.28.0

• Feat Reader/Writer: Added ConnectionString-based initialization.
• Feat ADO.NET: Added support for SnapshotRW level isolation.
• Feat: Added support for Yandex.Cloud metadata credentials (EnableMetadataCredentials) in YdbConnectionStringBuilder / connection string.
• Feat: Added support for Yandex.Cloud service account key file (ServiceAccountKeyFilePath) in YdbConnectionStringBuilder / connection string.
• Feat: Added validation for mutually exclusive authentication properties (User, CredentialsProvider, ServiceAccountKeyFilePath, EnableMetadataCredentials).

Full Changelog: v0.27.0...v0.28.0

v0.27.0

• Feat ADO.NET: Support control plane methods in YdbDataSource:
  • DescribeTable: Returns information about the specified table (metadata).
  • CreateTable: Creates new table.
  • CopyTable: Creates a copy of the specified table.
  • CopyTables: Creates a consistent copy of the specified tables.
  • RenameTables: Renames multiple tables in a single operation.
  • DropTable: Drops (deletes) a table.
• Dev: Discovery endpoints use System.Threading.Timer.

Full Changelog: v0.26.0...v0.27.0

ef-v0.4.0

• Upgraded ADO.NET provider version: 0.26.0 → 0.27.0.

Full Changelog: v0.3.0...v0.4.0

ef-v0.3.0

• Added support for Microsoft.EntityFrameworkCore 10.0 on .NET 10.0.
• Added ILike support.
• Added support INSERT, UPDATE, DELETE batching for EF Core SaveChanges operations.
• Fixed bug: DateTime.UtcNow generating invalid SQL in ExecuteUpdate (#555).

Full Changelog: v0.2.0...v0.3.0

v0.26.0

• Feat ADO.NET: Added raw integer / long value support for extended-range DateTime types.
• Feat ADO.NET: Support YdbStruct support.

Full Changelog: v0.25.2...v0.26.0