What has changed here.
New articles, new pages and notable updates, newest first. We only list what makes a difference to visitors. Pages in our compendium also keep their own change log.
October 2026
- Updated
SQL Server versions: October updates
SQL Server 2025 CU10 and the October 13 security updates for 2025, 2022, 2019 and 2017 have been added, and the build checker knows them.
- New
More cores, faster cores or a better query?
When more cores help, when a faster core does and when it is the query itself. With measurements from our lab.
- New
Will an upgrade make our application faster?
Engine, compatibility level and new features looked at separately, with lab evidence and a guide for your own queries.
- New
Search across the whole site
Magnifier at the top right or Ctrl/Cmd+K. Search runs in your browser, without a third-party service.
- New
Backup & restore in two parts
Part 1 covers the basics, part 2 points in time and backup chains, each with a quiz.
- New
Fast in test, slow in production: sp_BlitzPlanCompare
How to compare environments when the same code gets different plans. With lab and quiz.
- New
Why a restart helps, and why only briefly
New page in the performance guide, with a query to capture the situation before you restart.
- New
Guide: SQL Server performance
Diagnostic paths when SQL Server is slow: sometimes fast and sometimes slow, blocking and timeouts, slow under load.
- New
New home page, BI & reporting and public sector
The home page is now organized by task. Two new pages cover BI and reporting and the public sector.
- Updated
Audience measurement only with consent
We count page views only if you agree, without cookies and without visitor profiles. The privacy policy describes how.
- New
Index maintenance series in three parts
How an index fills and splits pages, a counter-check in the lab and a year without maintenance, each with a quiz.
- New
Game: SQL Server Iceberg
How deep does your SQL Server knowledge go? Questions from the surface to the depths, with a shareable result.
- New
The reader that locks the table
Why a SELECT can trigger lock escalation. With experiments and a quiz.
- Updated
Performance & tuning with a case study
Tuning is now the fourth path on the page, plus an anonymized case from a project.
- New
Ongoing support: DBA Pool and PSG MX
Two pages on ongoing support: the DBA Pool takes over day-to-day DBA tasks, PSG MX handles continuous performance work.
- New
SQL Server training
T-SQL, performance troubleshooting and workshops, remote and tailored to your team.
- New
Where does the time go? Query Store and nested calls
How Query Store accounts for time when procedures call other procedures. With lab and quiz.