Safari Technology Preview 248 adds TC39 BigInt Math

// 2h agoPRODUCT UPDATE

Safari Technology Preview 248 adds TC39 BigInt Math

Apple released Safari Technology Preview 248 for macOS Golden Gate and macOS Tahoe. This update adds experimental TC39 BigInt Math support, CSS progress() enhancements, and extensive WebKit bug fixes.

// ANALYSIS

Safari Technology Preview 248 highlights Apple's consistent cadence of web engine refinements, ensuring WebKit keeps pace with emerging ECMAScript proposals and CSS standards.

–Early implementation of TC39 BigInt Math methods simplifies arbitrary-precision arithmetic without relying on third-party JavaScript libraries.
–Fixes for view transitions, flexbox scroll heights, and CSS scroll-snap edge cases improve cross-browser layout consistency.
–Web Inspector improvements targeting cross-origin iframe debugging and Console REPL variable re-declarations streamline developer workflows.

// TAGS

safariwebkitjavascriptcssweb-developmentbrowserapple

DISCOVERED

2h ago

2026-07-23

PUBLISHED

6h ago

2026-07-22

RELEVANCE

7/ 10

AUTHOR

Erenay09

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