We have been making an effort to continue updating the rules to make them clearer, and less dependent on the d20 SRD. The current rules are compiled in the Microlite20 Rules Cyclopedia which is supported through Patreon: the rules are free to download though.
Another thing we are doing is creating stand alone micro setting bundled with rules to go along with them.
Is there anything particular that you ran into problems with, or specific that you would like to see made?
RE: Microlite20: Gameplay Review