Latest Collins List
The 5th edition of Collins Scrabble Words has been adopted in Australia for tournament and club use officially from 1 July 2019. The HarperCollins information on the fifth editon of Collins Official Scrabble Words has the ISBN number 9780008320126
There were some deletions in the change of the official list.
The new reference is often referred to as CSW19, and this is the way it appears in the updated version 5.1.1 of Zyzzyva. Zyzzyva is used in word judge mode at tournaments. It also has search and quiz modes. It may be downloaded as a Windows 64 bit installer
Word Lists adjusted for CSW19