Hono 4.13.3

Breaking: Hono 4.13.3 is here. A focused patch release, heavy on router and middleware fixes.

What Changed

• URL safety — client no longer corrupts URLs when replaceUrlParam contains $ replacement tokens
• Router fixes — trie-router now matches suffix wildcard routes; pattern/linear-routers no longer over-match on wildcards
• ETag — pending stream bytes are copied; 304 response-header filtering no longer skipped
• CORS — Origin appended to Vary header on OPTIONS preflight
• CSRF — OPTIONS requests exempted from CSRF validation
• IPv6 — no more truncation on embedded IPv4 addresses when expanding IPv6

New Feature

pretty-json middleware now supports structured JSON content types (+json).

Bottom Line

Patch-sized, routing-focused, no breaking changes. Update when you can.