Tiny Core team just announced the stable release of Tiny Core 3.5 along with Micro Core smaller version of Tiny Core. Tiny Core 3.5 size is 10.5 MB and Micro Core 3.5 size is 6.7 MB.
Improved system boot times with optimization of startup code. Administration improved with deletes of uninstalled ondemand without reboot. Many user interface improvements and additional supported options in: appsaduit, wbar, services, tce-audit, and fluff, the integrated file manager. Key system programs updated to latest release: busybox and zsync.