Events marking the first purchases with the new $20 notes were held today in more than 30 U.S. cities. Later this month, the issue of the new $20 bill will be marked by international events in dollarized economies and in countries where U.S. currency is widely held, such as Russia and countries throughout Latin America. -- From
a government press release
The new twenties are the only 20's being released by the Federal Reserve system for one month, then we go back to the standard recycling of whatever comes by along with additional printing of 20's to replace those that are destroyed.
You're welcome to buy all the gold you want, I'm sure the gold market people would love to have a nice pop so they can sell their positions in anticipation of the next major gold sale in December.