Hi All,
piCore-13beta4 for 32-bit is now available:
http://tinycorelinux.net/13.x/armv6/test_releases/RPi/It comes with 5.10.9 Linux kernel. If no critical issues found, it is the final kernel release. Modules will be posted in the next days.
Numbering moved back to beta due to expected changes in core (rootfs) after freezing kernel.