HubSpot begins force-migrating v1 cookie consent banners to v2 on May 11, 2026. Custom CSS will break. Google Consent Mode wiring may fail silently. This guide covers what to check, what to fix, and which banner type matches your GDPR or CCPA obligat

HubSpot legacy sandboxes sunset March 16, 2026. Here's your 5-phase migration checklist for the new Deploy to Production workflow.