Mostly digital. For an extra $25 per anum one can still get the print QST mailed as it always was but for the regular membership dues QST is digital only. However, the membership dues also include digital access to National Contest Journal, QEX, and On The Air. Perhaps it was at my suggestion along with others but ARRL has enabled PDF downloads of all content via the digital provider. These PDFs are fully text searchable and much smaller than a "print to PDF" version that was a collection of graphical images for each page.