Yes, the site logo changed. This is because site stylesheets are all brand-spanking new, and we have 15 new themes for you to choose from! More info here.
Policy Update - Rules changes incoming for AI content - Read Here

Tag changes for image #2231027

Display only:RemovedAddedAll
ImageTagActionTimestampUserRetained?
2231027
Size: 451x350 | Tagged: safe, artist:php178, derpibooru exclusive, fluttershy, crystal pony, pegasus, pony, g4, .svg available, crystallized, female, rainbow power, simple background, solo, svg, transparent background, vector
rainbow power-ified782Removed ZONESS Yes