Changelog

Changes to the specifications, newest first. Registry 0.2.1 (social) and 0.2.2 (HTML5).

Deprecations

Messenger Stories · Ad
Messenger Stories placement deprecated for Marketing API v26.0+ and for all versions on 2026-10-27. The Ads Guide still listed it on 2026-10-15.
Instagram Explore Feed · Ad
Marketing API v26.0: the Instagram Explore Feed placement is no longer available; requests that specify it return an error. Instagram Explore home remains in the Ads Guide.
Pinterest Idea Pin
Idea Pins can no longer be created; multi-page Pins deprecated; old paged Pins distributed as video.

15 Oct 2026

Initial research entry (not authoritative). · 47 placements

Verified: official pages read directly. Each item's verification field says which. · 30 placements

Corrected an extraction error: minimum height 750 px applies to 4:5 images only, as the source says. · 1 placement

Facebook Feed · Ad

Corrected an extraction error: video aspect ratio read as 1:1 or 4:5 (the source's device note stays in the caveat). · 3 placements

Verified: official pages read directly; official material supplied by the owner. Each item's verification field says which. · 4 placements

Corrected an extraction error: video captions are "Not supported", as the source says, not "recommended". · 1 placement

Audience Network native, banner & interstitial

Corrected an extraction error: video captions are "Not supported", as the source says, not "recommended"; minimum height 750 px applies to 4:5 images only, as the source says. · 1 placement

Audience Network rewarded video

Verified: official pages read directly; safe zones measured from official template files. Each item's verification field says which. · 12 placements