The updated White Book for 2018 is now available - 2018 White Book.
A list of changes made to the 2017 version is available here.
The significant change for TDs and players is the increase in procedural and disciplinary penalties - 25% top/6IMP/1VP and 50% top/12 IMP/2 VP (though of course, for players, this only affects them if they fail to follow procedure or behave badly!). Other changes relate to the new laws of bridge from 2017, updates made by the EBU, and changing interpretations by the Laws & Ethics Committee.
The Blue Book is unchanged in 2018 - the 2017 remains the correct book to use.