I gotta start writing the hype-oriented 2.6.0 announcement post

Honestly I'm always a bit struggling with which audience those blog posts should have in mind. There's like three types of changelogs I have to write: the point by point changelog included in the source files, the GitHub release changelog, which sysadmins will read to figure out how to upgrade and why to upgrade, and these hype-oriented blog posts.

But if I'm not aiming at sysadmins there, does it mean I should omit writing about admin features, CLI utilities, fixes and all that stuff 🤔

Outline 
@Gargron Is preview data embedded in the stream JSON now?
@Gargron Niiiiice. Going to have to get on with implementing that! Also go to sleep!