There the rules about the rules. These are here for clarity mostly, and (as in all cases) agreement at the table trumps the rules.
Single source of truth
This campaign uses the wiki as the single source of truth. With the exception of the mechanics noted in Source Books, if something is not on the Rules wiki it is not in the campaign.
If it turns out that rules are in contradiction with each other, the rules on the Rules wiki trump rules from referenced source books. Within the Rules wiki, text trumps tables and other summarizations.
Rules changes
While care has been taken when designing the rules for the Maalum campaign to write balanced and fair rules, they are nevertheless subject to change due to new insights, balancing corrections, or setting theme tweaks.
When the rules change you can, within reason, propose adjustments to your characters to compensate for the rules changes.