SharePoint Online Tenant Administrators can now control script sources for modern pages, allowing custom code from external sources. Rollout timelines: Targeted Release (late March to early April 2025), General Availability (late April 2025), and GCC, GCC High, DoD (late April to late June 2025). No admin action required.
Applies to: SharePoint Online
Source: mc.merill.net — data via Merill Fernando's open archive (MIT).