Feature release notes
This topic describes the product feature updates and related documentation of PolarDB for Xscale (PolarDB-X).
September 2026
Type | Highlights | References |
New feature | Context Service (Context0) - Added capabilities for AI Agents including long-term memory, enterprise document understanding, knowledge Wiki, business learning, and permission and access control. | |
New feature | PolarDB-X Agent - A database engineering agent that runs in the Alibaba Cloud environment. Within the authorized scope of the current account, it can perform instance inspection, anomaly diagnosis, SQL and schema optimization, and other database tasks. It comes with built-in official PolarDB-X Skills and features task planning, tool calling, and code development capabilities, enabling it to continuously execute multi-step tasks and deliver verifiable results. |
August 2026
Type | Highlights | References |
New feature | Agent Observability Service (PXFuse) - An observability platform for AI Agents. It provides complete capabilities including data ingestion, feature usage details, settings and management, and capability boundaries and FAQs. | |
New feature | Context Service (Context0) - A context management service for AI Agents. It provides quick start guides, API references, and best practices. | |
New feature | AI Search - A new AI search capability suite that includes onboarding, semantic search, hybrid search, RAG conversational search, Agentic Memory (long-term memory for AI Agents), Agentic Search (intelligent agent search), and resource cleanup and FAQs. | |
New feature | AI Node - A new AI node capability that supports mounting cloud disks, CPFS, OSS, and NAS to provide flexible storage and network access for AI workloads. |
July 2026
Type | Description | References |
New feature | Custom Connection Endpoint (New Version) - Added custom connection endpoint (new version) feature. | |
New feature | Standby Read Account - Added support for configuring standby read accounts. | |
New feature | Intelligent Search (Search Engine) - Added intelligent search (Search Engine) supporting full-text and vector search. Built on OpenSearch (compatible with the Elasticsearch ecosystem) and tightly integrated with PolarDB-X, it provides capabilities such as product search, log analysis, vector retrieval, and RAG-powered Q&A. |
June 2026
Type | Description | References |
New feature | Native Vector Index - Added native vector index with support for similarity search. | |
New feature | PolarDB-X Zero - Released PolarDB-X Zero, targeted at lightweight scenarios. | |
New feature | Long-term Memory Service mem0 - Added long-term memory service mem0, providing memory capabilities for AI applications. | |
New feature | PolarDB-X BaaS - Added PolarDB-X BaaS Service (Supabase Compatible) support, including multi-tenant edition and BaaS service creation. | |
New feature | PolarDB-X CodeMatrix - Added PolarDB-X CodeMatrix multi-agent collaboration platform. | |
New feature | AI Function - Added AI Function, enabling direct invocation of large model capabilities in SQL. | |
New feature | Low-cost Context Storage (External Columns) - Added external column storage, providing a low-cost solution for context storage. |
May 2026
Type | Description | References |
New feature | Secondary Index Prefix Compression (SPC) - Added secondary index prefix compression (SPC) to effectively reduce index storage overhead. |
March 2026
Type | Description | References |
New feature | PolarDB-X Service-linked Role - Added PolarDB-X service-linked role for fine-grained RAM permission management. | |
New feature | PolarDB-X AI Assistant - Added PolarDB-X AI Assistant, providing intelligent database Q&A and O&M assistance. |
January 2026
Type | Description | References |
New feature | Active-active Mode - Added active-active deployment mode. |