With the upped powers of mortals, there's no doubt that epic level and characters with divine ranks also got a pat on the back.
Epic Level Basics
From 20th-level, and on, a character's ability score increases are doubled.
The 'Epic Level Basics" have been changed to make the following text; "A character’s base save bonuses and base attack bonus don’t increase after 20th level.", not true.
Beyond 20th-Level, a character's save and attack bonuses are extrapolated, with the Epic Save and Epic Attack Bonuses being stacked and added upon it.
A 20th-Level Fighter has a BAB +20/+15/+15/+15, while a 25th-Level Fighter would be extrapolated to have a +25/+20/+20/+20 and +12/+6/+6 Base Save Bonuses for Fortitude, Reflex and Will Saves respectively. With the modified Epic Level Basics, these Base Bonuses would become +27/+22/+12/+12 and +15/+9/+9
A 28th-Level Wizard has a BAB +12/+7/+7, and +8/+8/+14 bonuses for Saves. With the same Epic-Level Bonuses, it would become +16/+11/+11 and +12/+12/+18.
At 21st level, and every three levels thereafter, the character may select an epic feat in place of a nonepic feat.
An epic character also continues to gain non-epic feats at every level divisible-level.
The character effectively gains two feats at 21st-level and beyond; they must take an epic and a non-epic feat, and not take two of each.