RetroPie 4.6 has been launched with official support for Raspberry Pi 4.

RetroPie 4.6 has moved to Raspbian Buster as a base for its pre-built Raspberry Pi images. Raspbian Stretch is no longer supported by Raspberry Pi Trading Ltd.

RetroPie will continue to support Stretch for a while longer, but will likely stop updating binaries for it later this year.

RetroPie can be installed on top of an existing Raspbian Buster set up, or on top of Ubuntu on a PC/Odroid-C1/C2/XU3/XU4.

Other changes include improvements to the RetroPie packaging system and core RetroPie-Setup code so that it remembers the package stage.

RetroPie 4.6 will also only update those binaries where an actual new one is available, and it will no longer overwrite source installs during updates.

RetroArch gets an update to 1.8.5 with a new notification system, support for “real CD-ROM” games with the ability to dump a disc image, an improved disk control system with the ability to label disks in .m3u files, and RetroAchievements support for the original PlayStation, Sega CD, and PCEngine CD.

RetroPie capable of running not just the usual classic consoles and game systems, but even late 1990s and early 2000s powerhouses like the Sega Dreamcast (and redream is now bundled with RetroPie 4.6), as well as the PSP, Saturn, and to some extent even the PlayStation 2.

The last few aren’t by any means perfect in emulation yet, but Dreamcast games have been running at around 60fps at 720p resolution for several months nowy, and enthusiasts are working on getting Dolphin up and running for GameCube and Wii titles.