Hunter talent · row 1 of Survival, from level 10 (5 with Talented 5/5) · Physical

Improved Tracking

While tracking Beasts, Demons, Dragonkin, Elementals, Giants, Humanoids, or Undead, all damage you deal to the tracked creature type is increased by 1/2/3/4/5%.

Game files · build 1.60.1.70245Read from the WoW Forever beta client, build 1.60.1.70245.

Compared with Classic

Classic tooltip

Increases all damage caused against Beasts, Giants and Dragonkin targets by 1% and increases critical damage caused against Beasts, Giants and Dragonkin targets by an additional 1%.

Data	Classic	Forever
effect 2	present	removed
effect 1 aura	aura (168)	aura (107)
effect 1 value	1	5

In Blizzard's notes

What Blizzard said about Improved Tracking, each line checked against the files.

Matches the files
Improved Tracking: This new talent combines the Monster Slaying and Humanoid Slaying talents into a new improved talent that causes the Hunter to deal increased damage to any creature type the Hunter is currently tracking.
The files Improved Tracking (24293), Survival row 1, raises all damage to the creature type you are tracking by 1-5% (tooltip). Monster Slaying and Humanoid Slaying, two Classic row 1 talents, are gone from the tree.
Improved Tracking Humanoid Slaying Monster Slaying Class deep dives: Hunter and Druid

History

69876 Sep 16First beta build we archived. No changes in the client files since.