Architect's Tech Stack

Oct 24, 2026 · Mobile Development

OkHttp 5.5 Upgrade: Real Value Lies in 5.2–5.4 Features, Not ECH

This article analyzes OkHttp 5.5's features, concluding that Encrypted Client Hello (ECH) requires Android 17 and offers limited immediate value, while versions 5.2–5.4 deliver practical upgrades like Zstd compression, 16KB page alignment, enhanced interceptor permissions, DNS-over-HTTPS, and QUERY method support, recommending a staged upgrade starting with 5.4.