Slackware 15.0 was released after 5 years
From July 2016 onwards we had no news about Slackware. Distribution stopped on Slackware Linux 14.2.
So today we are pleased to announce the upcoming version 15.0 of the oldest surviving Linux distribution in the world.
The new version has been declared in the "Current" development branch as "alpha 1":
"Here we go again gl the glibc 2.33 has been upgraded and comes with one latest mass rebuild in Slackware 15.0. The only packages upgraded to this batch are glibc and kernels - everything else is just a remake of the new glibc.
There is a new Rust compiler, but Firefox and Thunderbird applications will need to be fixed to use it, so we will leave them until we are ready with the new Rust for patches or new upstream versions.
That's why I'm not ready to name the "beta" version yet, and we'll call it 15.0-alpha1. "
Read full changelog. Slackware does not have an official ISO for testing, but one of the distribution developers, Eric Hameleers, regularly creates unofficial installation DVDs from Slackware's "Current" dev branch.