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honojs/hono (v4.13.17) & mastra-ai/mastra (mastracode@0.49.0) — Build & Runtime Deep Dive

Executive Signal Synthesis

Patches cookie security prefixes, JSX escaping, and response body leaks. Upgrade package. Migration: None. Meanwhile, mastra-ai/mastra (mastracode@0.49.0): Ships @mastra/core@mastracode@0.49.0 with upstream runti. Drop-in upgrade. Migration: None.

Architectural Deep-Dive & Systems Impact

Normalizes cookie validation to match __Secure- and __Host- prefixes case-insensitively across middleware and CookieConstraint.

Hardens hono/jsx by adding CSP nonce support to ErrorBoundary inline scripts, escaping element attributes, and suppressing ref objects from DOM attributes.

Ships @mastra/core@mastracode@0.49.0 with upstream runtime refinements and stability fixes from mastra-ai/mastra.

Updates TypeScript declarations and internal module exports for mastracode@0.49.0.

Actionable Upgrade & Verification Checklist

2 steps
  1. 01Upgrade hono via npm install hono@4.13.17.
  2. 02Upgrade @mastra/core via npm install @mastra/core@mastracode@0.49.0.
Verification & Upgrade Command Snippet
npm install hono@4.13.17
npm install @mastra/core@mastracode@0.49.0