I just noticed that Google has made a change to the payments section of the AdSense Terms and Conditions page.
What’s changed?
A note on the AdSense “What’s New” page summarizes the change by stating,
As a result of publisher feedback, we will not be paying out all accounts at the end of the year. We’ll continue to pay publishers on a regular schedule, and will send payments to qualifying publishers with earnings balances over $100. In addition, cancelled accounts will only be paid out if their account has earned a minimum of $10.
You can still view the the previous version of the TOS via the Google cache.