Here's what's changed recently:

2026-10-18:

• All-new modules on Using Query Store Safely, How I Misuse Resource Governor, Fixing LCK Waits with ADR and Optimized Locking.
• All-new labs #1 and #2.

2025-11-15:

• How to Fix LCK% Waits - added a new video to demo SQL Server 2025's new Optimized Locking.