Section 1.9: Clarification that scorekeepers must provide standing at conclusion of events.
Section 1.10: Clarifying that players are expected to point out teammate errors in team tournaments.
Section 2.2: Consolidating information about determining who goes first, making pregame clearer.
Section 2.3: Removes implication that sideboarding must be one-for-one.
Section 2.7: Moved information about talking during deck construction to new section 5.6 (Outside Assistance).
Section 2.14: Removed reference to poison counters. Now handled more explicitly in free information.
Section 3.2: Clarifies that players disqualified from an event do not receive planeswalker points for that event.
Section 3.3: Card border check now only disallows silver borders. “Un-set” basic land call-out removed due to redundancy. Moved information about replacing a card from Marked Cards to here, as it has wider applications.
Section 3.6: Section renamed to “Card Identification and Interpretation”. Rules for “naming a card” are explicit rather than inferred. Moved information about “outside the game” to sideboard section.
Section 3.7: New Releases updated. Judges have more latitude to make “obvious” rulings at Prereleases.
Section 3.11: Moved information about replacing a card from Marked Cards to section 3.3.
Section 3.15: Consolidated numerous sideboard rules from other sections to this section.
Section 4.1: Both type and number of a counter are free information. Removed explicit reference to poison counters, as it’s now covered by the number of a counter.
Section 4.2: Shortcuts explicitly define default handling of situations. Rewritten combat and end-of-turn shortcuts. Adding a small additional restriction to the planeswalker redirection shortcut.
Section 4.4: Players are welcome to point out a missed trigger at any point (not just within a turn).
Section 4.5: Team communications defaults to “always”, but falls back to format specific rules.
Section 5.6: New section on Outside Assistance. Defines when it is inappropriate to give and receive advice. Some parts of other sections consolidated to this section.
Section 6.1: Card Legality portions split off into newly renamed section 6.2.
Section 6.2: Section renamed to “Card Legality” (mostly moved from section 6.1). Old Sideboard Use rules moved to section 3.15.
Section 6.3: Standard sets updated. How cards from Planeswalker Decks rotate out of Standard clarified. How Standard-legal card from other ancillary products rotate out of Standard clarified. 1 card banned.
Section 6.4 Modern sets updated.
Section 6.5: Mana Crypt removed from exception language (due to printing in Eternal Masters). 2 cards restricted.
Section 6.6: Mana Crypt removed from exception language (due to printing in Eternal Masters). 1 card banned.
Section 6.7: Block Constructed format sets updated.
Section 7.1: Information on what constitutes a sideboard in limited moved here from section 7.3.
Section 7.3: Limited format sideboard information moved to sections 3.15 and 7.1. Section renamed to “Continuous Construction” and deals with those rules only.
Section 7.6: Communication rules during a draft moved to section 5.6 (Outside Assistance).
Section 7.7: Rules modified for how a draft is handled if a player is removed in the middle of a draft.
Section 8.3: Team communication rules language cleaned up.
Section 9.4: Pregame procedure for 2HG updated to include choosing play/draw.
Section 10.4: Premier Events list updated.
Appendix D: Amonkhet Block “through” date adjusted.
Appendix E: Premier Events list updated. Chart updated to reflect lowest number of rounds for Team/2HG.