Classes

Progression changes
Gain a Feat at character levels 2,6,10,14,18

Gain a Feat or Attribute increase at character levels 4,8,12,16,19 This replaces the class based progression in the PHB, and is a minor penalty to the Fighter and Rogue. I never saw any point in the differences.

Gain a Skill, or Tool Proficiency at level 3 and 13.

Specific Classes
These will require play testing

Barbarian

Druid

Fighter

Monk

The monk gains extra attacks with the same progression as fighters. ''Thematically its wrong that they are left behind in attacks per round. For sure they always have a bonus action attack but other classes can easily get that. The monks attack is almost always weaker due to lack of a magic weapon.''

Paladin

Ranger

Sorceror