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If you have issues, email me at gregory dot kiesel at circuitmason dot com. If you can't figure out my email address, you are probably a bot.
Includes downloads for Mason's Linux and Windows versions, plus several parts libraries. The Linux version tends to lag the Windows version; it will catch up eventually.
Whenever I make a major update, and I haven't vetted it, I'll push out "beta" releases for test and I'll keep a "stable" release around for a while- I had a bad experience during Wine development. Otherwise, if only minor changes are going on, I'll probably just keep a "best" release when I have confidence everything is working.
Change log for the curious: