YouTube discovery now skips uploads older than 6 months by default — fewer 5-year-old viral hits crowding your funnel. New per-campaign controls let you tune YouTube relevance language + region and TikTok upload-recency without touching admin settings. Two pre-filtering layers shipped, both visible from the Setup tab: YouTube recency window — 6 months by default — Every YouTube discovery now requests only videos uploaded in the last 180 days. The change is automatic — same daily quota, same keyword targets, fewer aged-but-popular creators in your funnel that wouldn't be relevant to a current campaign anyway. Workspace admins can adjust the window from the global Configuration tab. Per-campaign locale and freshness overrides — On the Setup → YouTube card, you can now opt into a relevance language (BCP-47 — 'en', 'pt', etc.) and region code (ISO 3166 — 'US', 'BR', etc.) per campaign, telling YouTube to bias results toward creators publishing in that language and region. On the Setup → TikTok card, you can override the recency window per campaign (within the workspace ceiling). Both are optional — leave them blank to use the workspace default. Discovery filter changes appear in your Activity feed — Whenever a campaign's discovery filters change — either via the per-campaign controls above or by editing thresholds — the Activity tab now logs a 'tuned discovery filters on campaign X' entry showing exactly what changed. You can see who tightened YouTube to en-US two weeks ago and why your funnel narrowed.