As the SQL Server 2025 previews continue to come out, Microsoft is making changes that they’re not telling you about. Sometimes these changes never actually go into the final production version, other times they’re held exclusively for the cloud, but sometimes – just sometimes – we get a sneak peek of something Microsoft hasn’t announced yet.
When CTP 2.0 came out, I blogged the thousands of new feature flags, messages, and system objects in SQL Server 2025 CTP 2.0, and I haven’t had the time to dig more deeply into those yet. In that post, I discussed the new sys.dm_feature_switches