ClickHouse 2025: Faster Analytics, Global Reach

ClickHouse: A New Era Dawns

This ClickHouse blog post provides a comprehensive overview of the significant advancements made in 2025. The introduction of SharedCatalog is a major architectural shift, promising improved cloud-scale performance and streamlined DDL operations. The Compute-Compute separation with Warehouses offers valuable flexibility for optimizing cost and performance. The expansion of global regions and the BYOC offering on AWS are crucial for addressing data residency and compliance requirements, which are increasingly important for enterprise adoption. The enhancements to the developer experience, particularly the AI-powered features like SQL autocomplete and Ask AI, are compelling and lower the barrier to entry. ClickStack's evolution as an open-source observability stack is also a notable development, providing a unified platform for telemetry data. However, the article could have provided more concrete performance benchmarks and comparisons to competing solutions like Snowflake or Databricks. While the features are impressive, understanding the specific performance gains and cost implications would be beneficial. Furthermore, while the agentic data stack is mentioned, the integration details and practical applications could be expanded to provide more clarity on how to leverage the stack. The focus on enterprise features, while important, might overshadow the needs of smaller users and the open-source community, particularly concerning the long-term sustainability and roadmap of the project.

Key Points

• SharedCatalog introduces a centralized metadata coordination system for improved cloud-scale performance and DDL operations.
• Warehouses enable compute-compute separation, optimizing architecture for cost and performance.
• Significant global expansion with new regions on AWS, GCP, and Azure, including BYOC on AWS.
• AI-powered features like SQL autocomplete and Ask AI enhance the developer experience.
• ClickStack evolves as an open-source observability stack, integrating logs, traces, and metrics.

---

📖 Source: What’s new in ClickHouse – 2025 roundup