When was this OBR rule changed?

[SanDiegoSteve]

Rule 4.12 was completely rewritten and reformatted. Also, 4.11(d), the National Association optional suspended game rule has been inserted into the rule book. 4.11(d) was deleted in its entirety (and added to 4.12). The new 4.11(d) says:

(d) A called game ends at the moment the umpire terminates play, unless it becomes a suspended game pursuant to Rule 4.12(a).

Then the note for 4.12(a) was totally rewritten, incorporating the old 4.12(b), and rewording the whole thing to change the definition of a suspended game:

NOTE: Weather and similar conditions—Rules 4.12(a)(1) through 4.12(a)(5)—shall take precedence in determining whether a called game shall be a suspended game. If a game is halted by weather, and subsequent light failure or an intervening curfew or time limit prevents its resumption, the game shall not be a suspended game. If a game is halted by light failure, and weather or field conditions prevent its resumption, the game shall not be a suspended game. A game can only be considered a suspended game if stopped for any of the six reasons specified in Rule 4.12(a).

Of course, they added a 6th reason:

4.12(a)(6)It is a regulation game that is called with the score tied.

The whole thing confuses the heck out of me.