Cloudflare Fundamentals - JSON responses and RFC 9457 support for Cloudflare 1xxx errors
UpdateUnverifiedAdded Sep 24, 2026
Cloudflare-generated 1xxx errors now return structured JSON when clients send Accept: application/json or Accept: application/problem+json . JSON responses follow RFC 9457 (Problem Details for HTTP APIs) ↗ , so any HTTP client that understands Problem Details can parse the base members without Cloudflare-specific code.
Topics: AI agents, Data integration
More Cloudflare developer platform releases
Every Cloudflare developer platform release| Date | Release | Type |
|---|---|---|
| Mar 11 | Log Explorer - Ingest field selection for Log Explorerunverified Update | Update |
| Mar 11 | Workers AI - NVIDIA Nemotron 3 Super now available on Workers AIunverified Update | Update |
| Mar 12 | Containers - SSH into running Container instancesunverified Update | Update |
| Mar 12 | Containers - List Container instances with `wrangler containers instances`unverified Update | Update |
| Mar 12 | Cloudflare Fundamentals - Retry-After HTTP header for retryable 1xxx errorsunverified Update | Update |
| Mar 12 | WAF - WAF Release - 2026-03-12 - Emergencyunverified Update | Update |
| Mar 10 | Cloudflare One Client - WARP client for macOS (version 2026.3.566.1)unverified Beta | Beta |
| Mar 10 | Cloudflare One Client - WARP client for Windows (version 2026.3.566.1)unverified Beta | Beta |
Also shipped on Mar 11, 2026
Cloudflare in March 2026| Date | Company | Release | Product | Type |
|---|---|---|---|---|
| Mar 11 |  Figma | Purchase and manage additional AI creditsunverified | Figma | Pricing |
| Mar 11 |  New Relic | eBPF Network Metrics reach GA with enhanced APM capabilitiesunverified | New Relic | GA |
| Mar 11 |  Okta | Sender constrained tokens using DPoP is now Generally Available on Enterprise plansunverified | Auth0 | GA |
| Mar 11 |  Grafana Labs | Secrets Management UI available in Public Previewunverified | Grafana Cloud | Preview |
| Mar 11 |  Notion | Search Salesforce accounts, leads, opportunities, and contacts in Notionunverified | Notion | Update |
Sources: each vendor's own release notes, changelogs and GitHub releases, read daily to monthly by how often it posts. Logos via logo.dev; trademarks belong to their owners.