PayPal has now added support for two currencies: Mexican Peso (MXN) and Israeli Shekel (ILS), so we now support those currencies as well, for cart pricing and PayPal checkouts. If you accept payments via PayPal, this means you can now seek buyers in Mexico and Israel and accept payments in their native currencies!
You can always view the current list of PayPal-supported currencies here:
https://www.paypal.com/us/cgi-bin/webscr?cmd=xpt/cps/seller/mc/MCIntro-outside
As always, your cart pricing currency must match the basis currency of your payment processor account (so if your PayPal account is based in USD, your pricing must also be set in USD), but buyers can tender payment in any currency supported by the processor, who would automatically perform the currency conversion at current exchange rates during checkout.