Every talent Forever changed against Classic
Nine classes, and for each one every talent that is new, gone, moved or worth different points than it was in Classic 1.12 - computed by comparing two snapshots, not written out by hand.
Druid
51 talents in the beta
17 new, 13 gone, 21 moved, 5 with different ranks
56 changes
Hunter
50 talents in the beta
18 new, 14 gone, 11 moved, 2 with different ranks
45 changes
Mage
54 talents in the beta
11 new, 6 gone, 15 moved, 6 with different ranks
38 changes
Paladin
50 talents in the beta
19 new, 13 gone, 12 moved, 3 with different ranks
47 changes
Priest
53 talents in the beta
14 new, 8 gone, 14 moved, 6 with different ranks
42 changes
Rogue
53 talents in the beta
10 new, 8 gone, 13 moved, 6 with different ranks
37 changes
Shaman
50 talents in the beta
17 new, 13 gone, 19 moved, 4 with different ranks
53 changes
Warlock
52 talents in the beta
23 new, 21 gone, 15 moved, 4 with different ranks
63 changes
Warrior
53 talents in the beta
11 new, 10 gone, 5 moved, 2 with different ranks
28 changes
Two independent Classic 1.12 talent datasets, compared against each other: maladr0it/classic-talent-calculator and hseager/Classic-WoW-Talent-Planner. All 431 talents they share sit at identical positions in both. Names and positions are taken from the second, which is the complete one; the first is missing Faerie Fire (Feral).
The two Classic datasets disagree on the ranks of 4 talents out of 431. Those rows are marked on the class pages.