From a brief glance it doesn't look like WPATH have backpedaled at all. From the adolescent chapter it's Tanner Stage 2 for PB then
14 years and above for hormone treatment (estrogens or androgens), unless there are significant, compelling reasons to take an individualized approach, considering the factors unique to the adolescent treatment frame.
15 years and above for chest masculinization; unless there are significant, compelling reasons to take an individualized approach, considering the factors unique to the adolescent treatment frame.
16 years and above for breast augmentation, facial surgery (including rhinoplasty, tracheal shave, and genioplasty) as part of gender affirming treatment; unless there are significant, compelling reasons to take an individualized approach, considering the factors unique to the adolescent treatment frame.
17 and above for metoidioplasty, orchidectomy, vaginoplasty, and hysterectomy and fronto-orbital remodeling as part of gender affirming treatment unless there are significant, compelling reasons to take an individualized approach, considering the factors unique to the adolescent treatment frame.
18 years or above for phalloplasty, unless there are significant, compelling reasons to take an individualized approach, considering the factors unique to the adolescent treatment frame