In the wiki the following is stated:

Heightened Ability
Level: Minor

Derivation: All except Masela

The old powers each cherished different traits in their followers and embodied these characteristics. The resulting bloodlines often show near-divine examples of strength, intelligence, or beauty.

Minor: A scion with this attribute gains a +2 increase in the applicable ability score. The abilities associated with each derivation are as follows: Anduiras - Charisma or Strength (choose which one or roll for it when this ability is gained); Basaïa - Intelligence; Brenna - Dexterity; Reynir - Constitution; Vorynn - Wisdom; Azrai - Charisma or Intelligence (choose which one or roll for it when this ability is gained).

Heightened ability is not a spell like ability it is an increased ability like that from every 4th character level.

My DM's version of this ability states that the scion only receives a temporary 1d4-1 bonus to the ability score instead.

Is my DM using a past version? I understand that it's my DM's choice, but I was wondering where the discrepancy is coming from. I've been using the wiki to create my character, so I'd like things to match up as best as possible.

Thanks!