The biggest change that’ll be implemented in Evince 3.26 is the use of the libarchive library for decompressing various archive types, including the CBZ, CB7, and CBT formats that are usually used for comic books, and it also supports RAR files through the use of the unarr command-line utility. After 12 years, it finally looks like Evince 3.26 is getting support for the Adobe Illustrator (.ai) file format, no matter if the files are PDF or PostScript based, but only if both the backends are supported when compiling the application on your GNU/Linux distribution.