+Available options are: I<adjust_next_bill>.
+
+I<adjust_next_bill> can be set true to adjust the next bill date forward by
+the amount of time the account was inactive. This was set true by default
+since 1.4.2 and 1.5.0pre6; however, starting with 1.7.0 this needs to be
+explicitly requested. Price plans for which this makes sense (anniversary-date
+based than prorate or subscription) could have an option to enable this
+behaviour?
+