The developers have released a roadmap. The Beta is expected to last for roughly 12 weeks. After that, the "free" version will likely be limited to 50 actions per macro. However, for free, unlocking the full Pro version forever.
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This is why downloading the Beta now is critical. If you wait for the stable release, you will likely have to pay $19.99. The developers have released a roadmap
: A comprehensive automation tool and script generator based on AutoHotkey. Universal Macro Tool Beta Download Free