This page discusses the relevant changes introduced in CRUX 2.4. Everybody upgrading from the previous release is advised to carefully read the following notes.
CRUX 2.4 includes glibc 2.6.1, gcc 4.2.2 and binutils 2.18.
CRUX 2.4 ships with Xorg 7.3. Note that Xprint isn't supported anymore.
CRUX 2.4 uses a new ISO image with an initial RAM filesystem (initramfs) that allows for some convenient features: