Thanks @VolvoGirl Good to know.
No, it was the same tax return (i.e. previous calendar year's) that TurboTax made me mail in. The only thing different for that particular tax year vs all my other tax years was that I had needed to make estimated payments to FTB online due to an expected shortfall in withholdings. (So the print/mail requirement had nothing to do with the next tax year's estimated tax form.)
