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iOS 26.2 enables developers in Japan to use alternative browser engines beyond WebKit for dedicated browser apps and in-app browsing. Apple provides access to technologies like JIT compilation and multiprocess support, but requires developers to meet strict security and privacy criteria. Requirements include passing 90% of Web Platform Tests and 80% of Test262, implementing memory-safe programming practices, maintaining vulnerability disclosure policies, blocking third-party cookies by default, and committing to 30-day security patches. Two entitlements are available: Web Browser Engine Entitlement for full browser apps, and Embedded Browser Engine Entitlement for browser engine stewards providing in-app browsing experiences.

Using alternative browser engines in Japan