4
Demystifying Retrieval Augmented Generation with .NET - .NET Blog
(devblogs.microsoft.com)
Getting started
Useful resources
IDEs and code editors
Tools
Rules
Related communities
Wikipedia pages
Not the Stephen Toub blog post I was waiting for, but I have no complaints.
(Stephen Toub writes the yearly "Performance improvements in .NET x" post, always before the GA release in November)