Early Bird Registration for DrupalCon Portland 2024 is open! Register by 23:59 PST on 31 March 2024, to get $100 off your ticket.
http://drupal.org/project/formupdater
Paste your Drupal 4.6 or older form code into the textarea, click Process code, and it will strip the relevant form code out and display the new Form API version.