Hono 4.8–4.12 Knowledge Patch

Baseline: Hono through v4.7.x (core routing, middleware, hc, JSX/SSR, WebSocket helpers, and Cloudflare Workers/Pages, Deno, Bun, and Node.js adapters); covered range: v4.8.0 through v4.12.x plus the included topical guidance current to 2026-07-12.

Use this patch

• Read the security section before changing authentication, caching, static serving, CORS, IP restrictions, cookies, JSX/CSS SSR, or streaming.
• Read the relevant topic reference before implementing or reviewing Hono code.
• Preserve explicit JWT/JWK algorithms and the current patch-level security floor.
• Treat client path/query inputs as wire-format strings even when server validation coerces them.
• Use runtime-specific exports for adapters and static generation.

Reference index