What's new in the ClickHouse .NET Driver: the road from 1.0 to 1.3

ClickHouse’s .NET driver has advanced significantly since its 1.0 release, adding type-safe POCO-based inserts and queries, JSON-column serialization, configurable parameter type resolution and formatting, and read-value conversion to give developers more control over data handling. Version 1.3 also expands support for multidimensional arrays, ValueTuples, server-side Identifier parameters, per-query compression settings, application tagging, and improved schema-probe avoidance and buffer management to reduce round trips and garbage-collection pressure. Correctness fixes include improved DateTime time-zone inference, fixed-offset zones, composite serialization, Variant null handling, and enum parsing. The project now includes an official Entity Framework Core provider with LINQ translation, migrations, ClickHouse-specific DDL configuration, and bulk inserts, alongside integrations for Serilog, .NET Aspire, and Semantic Kernel. Future work includes performance-focused version 1.4 features such as reduced allocations and pluggable compression, followed by a native TCP client intended to use ClickHouse’s columnar protocol for higher throughput, progress reporting, and persistent connections.

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