The Dunfell-series of EasyOS is built from packages compiled from source using "meta-quirky", a build system based on OpenEmbedded/Yocto (OE). The binary packages from a complete recompile based on Dunfell 3.1.20 release of OE was used to build EasyOS 4.5.
There has been a major structural change, completely separating the EasyOS installation from the boot-loader, and the rEFInd/Syslinux bootloaders have been replaced with Limine. The latter handles both UEFI and legacy-BIOS computers.
As the packages are cross-compiled from source, the repository is rather small compared to other distributions; however, this is compensated by a much increased collection of SFS files. These are large packages, even complete operating systems, that can run on the main filesystem or in a container. These are downloaded and installed by clicking on the "sfs" icon on the desktop -- a very simple operation. New SFSs include Android Studio, Audacity, Blender, Openshot, QEMU, Shotcut, SmartGit, SuperTuxKart, VSCode and Zoom.
It is expected that more will be added.
SFSs can be thought of as being like appimages, snaps, or flatpaks, but more light-weight and flexible.
Lots of packages have been updated, including the kernel now at 5.15.78 and Firefox is 106.0.5.
And of course lots and lots of fixes and enhancements. So many, but just picking out a few: printing from GTK3 apps fixed, support for the nim compiler (and 'debdb2pupdb' system utility rewritten in nim), improved 'dir2sfs' utility, new 'deb2sfs' utility, openGL fixed in containers ...and so on.