SQL Server 2025 is now generally available (GA), bringing significant enhancements across performance, scalability, security, and new AI capabilities.
There are numerous improvements and features in this newer version. Below, we highlight some of the changes/new features available on SQL Server 2025.
However, if you have specific questions or want to learn more about it and analyze if you can benefit from it in your specific scenario(s), we’re available to chat.
Testing strategies, upgrade planning, performance optimization, or evaluating whether these new features and changes align with your business requirements.
Some Changes in SQL Server 2025
We want you to be aware of some of the main changes related to licensing and feature pairing that can help you save time and money.
1. Standard Edition Limits Increased
Standard Edition now supports up to 256 GB of RAM (increased from 128 GB in previous versions) and up to 32 cores (increased from 24 cores), making it significantly more capable for mid-tier workloads without requiring Enterprise Edition licensing.
2. New Developer Edition Options: Standard and Enterprise
SQL Server 2025 introduces two Developer Edition variants: Developer Standard Edition and Developer Enterprise Edition. Both are free for development and testing purposes, allowing teams to match their development environment capabilities with their target production edition, ensuring better testing accuracy and reducing deployment surprises.
3. Resource Governor Available in Standard Edition
Resource Governor, previously an Enterprise Edition-only feature, is now available in Standard Edition. This allows better workload management and resource allocation for mixed workloads without requiring Enterprise Edition licensing.
4. Express Edition Database Size Expansion
SQL Server 2025 Express Edition now supports databases up to 50 GB (increased from 10 GB), making it a much more viable option for small to medium-sized applications and development environments.
Some New Features in SQL Server 2025
1. Optimized Locking
Optimized locking offers an improved transaction locking mechanism to reduce lock blocking and lock memory consumption for concurrent transactions.
2. Native Vector Support for AI Workloads
SQL Server 2025 introduces native vector data types and vector indexing capabilities, enabling efficient storage and querying of embeddings for AI and machine learning applications.
3. Tempdb space resource governance
Improves reliability and avoids outages by preventing runaway workloads from consuming a large amount of space in tempdb.
4. Intelligent Query Processing (IQP) Enhancements
New IQP features include:
- Cardinality Estimation Feedback for Expressions: Improves query performance by learning from execution history to provide better estimates for complex expressions
- Optional Parameter Plan Optimization (OPPO): Enhances query plan selection for optional parameters, reducing the impact of parameter sniffing issues
5. Always On availability groups
- Persisted statistics for readable secondaries: Creates persisted statistics on readable secondaries so that workloads that run against secondary replicas are optimized.
- Query Store for Readable Secondaries: Query Store is now available on readable secondary replicas in Always On Availability Groups, enabling performance monitoring and query tuning directly on read-only workloads without impacting the primary replica.
5. Backup Compression Algorithm Updates
A faster and more effective backup compression algorithm – ZSTD. It may deliver faster backup and restore operations, reducing storage costs and backup windows.
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