I notice how 5e now has bundle of feature abilities compared to 3.5 and Pathfinder's single feature ability. In a sense, they almost turn features into a mini class, a race, occupation, or background.
5e AlertAlways on the lookout for danger, you gain the following benefits:
You gain a +5 bonus to initiative.
You can’t be surprised while you are conscious.
Other creatures don’t gain advantage on attack rolls against you as a result of being hidden from you
You often notice things that others might miss.
Benefit: You get a +2 bonus on Perception and Sense Motive skill checks. If you have 10 or more ranks in one of these skills, the bonus increases to +4 for that skill.