This was answered a couple pages back, by Firebane I think. Village ($5) tier gets the latest update, Wayfarer ($1) tier gets the previous update, and then the public update is two updates behind. So when there is an update this Friday, the public will update from 0.3.3.0 to 0.3.3.5. This usually means the public update is one month behind the latest version.
Patreon allows for payment through PayPal, and PayPal supports currency exchanges for many more currencies than what Patreon supports. You might want to check out the PayPal option as a way to become a patron.
Here is a link to PayPal's supported currencies: 
	
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And a link to how to convert currencies: 
	
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Go to the sixth question in the faq and it will explain how to convert.