Soon I will upload new version of the game here, on itch. And I wonder, should I create new project for latest release or simply edit old project? Will edited game show up in "Most Recent" tab? Is there any way to edit game and report it for showing in "Most Recent" tab
as you have been told, that is what devlogs are for. make a devlog. if it gets approved, you appear in recent again. look how other games do it.
if you continue to delete your game and reupload it, you will lose your posting or indexing privileges because of spamming and trying to game the system. itch does not like it, when developers do such things.
also, you screw over all the people watching your game. it disappears without trace from any collections. you are not doing yourself any favors. you also start at the beginning every time with 0 ratings and 0 comments. this is not how an attractive game looks.