Supabase Middleware 1.0
Component: supabase · Channel: stable. Automated analysis, not a compatibility certification. How this works.
Analysis updated: 2026-11-01.
Breaking-change evidence from the source
tag. From 1.0 the package follows semantic versioning: breaking changes ship only in a new major.
Supabase Middleware 1.0 releases a new MIT‑licensed engine that lets developers define typed per‑request logic once with defineMiddleware and pipeline and run it across any JavaScript runtime. This gives developers a unified, adapter‑free way to handle authentication, CORS, and database scoping regardless of the host platform.
💻 Software Engineers & Devs
Software engineers can now write reusable, type‑checked middleware that works from Edge Functions to Cloudflare Workers, Deno, Bun, Node, and major frameworks, eliminating duplicate auth, CORS, and DB client logic.
📊 Product & Engineering Leads
Product teams gain a stable, plug‑and‑play middleware foundation that speeds feature velocity for authentication, authorization, and cross‑origin requests without per‑project rewrites.
⚙️ DevOps & Security
Operations can deploy the same middleware unchanged across edge runtimes, simplifying CI/CD pipelines and reducing environment‑specific logic maintenance.
⚠️ Breaking Changes & Deprecations (1)
- tag. From 1.0 the package follows semantic versioning: breaking changes ship only in a new major.
✨ New Features & Capabilities (6)
- Typed middleware definition via defineMiddleware and pipeline utilities
- Built‑in middleware: withCors and withFeatureFlag
- Runtime agnosticism: Edge Functions, Vercel Functions, Cloudflare Workers, Deno, Bun, Node 22+
- Framework bridges for Hono, H3, Elysia, NestJS, TanStack Start without extra adapters
- @supabase/server middleware pieces: withClaims, withRequiredClaims, withSupabaseClient, withSupabaseAdminClient, withPostgresClient, withPostgresAdminClient
- withOAuthProtectedResource for MCP OAuth protected‑resource flow
⚡ Performance & Enhancements (2)
- Semantic versioning adopted (breaking changes only in new major versions)
- Zero‑adapter integration for popular frameworks with type‑checked bridges