From the document: This document corrects or clarifies certain rules in Player's Handbook (D&D 5e). Recent printings of the book include revised text that reflects the explanations here. User summary: These errata are formally published by Wizards of the Coast as official updates and changes to the rules contained in Player's Handbook (D&D 5e). Generally, the printing of the Player's Handbook subsequent to the errata will include the changes provided in the errata. These incorporated changes are cumulative.