What is Cloudflare sunsetting, deprecating, or shutting down?

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Accepted Answer

We track 6 things Cloudflare has scheduled to be sunset, deprecated, or shut down, spanning 1 category (API), each sourced from Cloudflare’s own announcement. The soonest still ahead: Cloudflare retires the legacy Registrar API — the /registrar/domains endpoints reach end-of-life 27 September 2026 (27 Sept 2026); Cloudflare removes Service Key authentication — the X-Auth-User-Service-Key header stops working 30 September 2026 (30 Sept 2026); Cloudflare deprecates CIDR-encoded Zero Trust route endpoints and the Tunnel connections field — end-of-life 5 October 2026 (5 Oct 2026); Cloudflare retires the legacy Workers KV namespace API routes (15 Oct 2026); Cloudflare deprecates the foundation_dns boolean in the DNS settings API — end-of-life 23 November 2026, switch to nameservers.type cloudflare.advanced (23 Nov 2026). The full, continuously updated list with live countdowns is at https://lastcall.dev/calendar/vendor/cloudflare.

Everything Cloudflare is sunsetting

Cloudflare The legacy Cloudflare Registrar domain-management API paths (/accounts/{account_id}/registrar/domains) stop working; automation that manages Cloudflare-registered domains must move to the new Registrar API

Cloudflare Cloudflare retires Service Key API authentication; requests using the X-Auth-User-Service-Key header stop being accepted and callers must move to Cloudflare API Tokens

Cloudflare The old /workers/namespaces/ REST API paths for managing Workers KV stop working; calls must move to the /storage/kv/namespaces/ paths

Cloudflare The foundation_dns boolean in Cloudflare's DNS settings endpoints (/zones/{zone_id}/dns_settings and /accounts/{account_id}/dns_settings) is deprecated; code must select Advanced Nameservers via nameservers.type: "cloudflare.advanced" instead

Cloudflare The REST DNS Analytics API (/zones/{zone_id}/dns_analytics/) and DNS Firewall Analytics API (/accounts/{account_id}/dns_firewall/{id}/dns_analytics/report) stop working; analytics automation must move to Cloudflare's GraphQL Analytics API

Other vendors on the board