The development of the Slackware 15.0 distribution has moved into beta testing. Slackware has been in development since 1993 and is the oldest distribution in existence. The distro features a lack of complexity and a simple initialization system in the style of classic BSD systems, which makes Slackware an interesting solution for learning how Unix-like systems work, experimenting, and getting to know Linux. An installation image has been prepared for download, 3.1 GB in size (x86_64), as well as a reduced assembly for running in Live mode.
The main differences of Slackware 15 come down to updating the versions of programs, including the transition to the Linux 5.10 kernel, the GCC 10.3 compiler set and the Glibc 2.33 system library.
Source: opennet.ru