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36 changes: 35 additions & 1 deletion RELEASENOTES.md
Original file line number Diff line number Diff line change
Expand Up @@ -2,4 +2,38 @@ v0.8.1
---

**Improvements:**
* Fixed NuGet readme file.
* Fixed NuGet readme file.

v0.8.0
---

**Breaking Changes:**
* Trying to set ClickHouseConnection.ConnectionString will now throw a NotSupportedException. Create a new connection with the desired settings instead.
* When a default database is not provided, the client no longer uses "default" (now uses empty string). This allows default user database settings to function as expected.
* ClickHouseDataSource.Logger (ILogger) property has been removed.
* Removed support for loading configuration from environment variables (CLICKHOUSE_DB, CLICKHOUSE_USER, CLICKHOUSE_PASSWORD). Use connection strings or ClickHouseClientSettings instead.
* The default PooledConnectionIdleTimeout has been changed to 5 seconds, to prevent issues with half-open connections when using ClickHouse Cloud (where the default server-side idle timetout is 10s).

**New Features/Improvements:**
* Added .NET 10 as a target.
* The NuGet package is now signed.
* Enabled strong naming for the library.
* Added a new way to configure ClickHouseConnection: the ClickHouseClientSettings class. You can initialize it from a connection string, or simply by setting its properties.
* Added settings validation to prevent incorrect configurations.
* Added logging in the library, enable it by passing a LoggerFactory through the settings. Logging level configuration is configured through the factory. For more info, see the documentation: https://clickhouse.com/docs/integrations/csharp#logging-and-diagnostics
* Added EnableDebugMode setting to ClickHouseClientSettings for low-level .NET network tracing (.NET 5+). When enabled, traces System.Net events (HTTP, Sockets, DNS, TLS) to help diagnose network issues. Requires ILoggerFactory with Trace-level logging enabled. WARNING: Significant performance impact - not recommended for production use.
* AddClickHouseDataSource now automatically injects ILoggerFactory from the service provider when not explicitly provided.
* Improvements to ActivitySource for tracing: stopped adding tags when it was not necessary (thanks to @verdie-g), and made it configurable through ClickHouseDiagnosticsOptions.
* Added new AddClickHouseDataSource extension methods that accept ClickHouseClientSettings for strongly-typed configuration in DI scenarios.
* Added new AddClickHouseDataSource extension method that accepts IHttpClientFactory for better DI integration.
* Optimized response header parsing.
* Added list type conversion, so List<T> can now be passed to the library (converts to Array() in ClickHouse). Thanks to @jorgeparavicini.
* Optimized EnumType value lookups.
* Avoid unnecessarily parsing the X-ClickHouse-Summary headers twice. Thanks to @verdie-g.
* Added the ability to pass a query id to ClickHouseConnection.PostStreamAsync(). Thanks to @dorki.
* The user agent string now also contains information on the host operating system, .NET version, and processor architecture.

**Bug fixes:**
* Fixed a crash when processing a tuple with an enum in it.
* Fixed a potential sync-over-async issue in the connection. Thanks to @verdie-g.
* Fixed a bug with parsing table definitions with parametrized json fields. Thanks to @dorki.
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