Home Assistant 2026.6 legacy template removal: migration guide
Template sensors gone after updating? Home Assistant 2026.6 removed platform: template. Reproduced on 2026.10.4 and migrated to template: keeping entity IDs.
Home Assistant
Home Assistant 400 Bad Request: trusted_proxies became /32
Home Assistant behind nginx returns 400 Bad Request five minutes after an upgrade because .storage/http holds trusted_proxies as /32. Cause and fix.