It doesn't seem to be mentioned in the list of new features, but I'm sad to see Martin changed the upgrade policy from free minor updates to a 1-year subscription plan.
Can't blame him though, he has been providing free updates to v4.xx for years and probably needs to make more money.
Edit: apparently this was changed almost a year ago and I just hadn't noticed .. I guess I should have used WSW to track it's own upgrade policy page

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