- Added a workaround of V8 deoptimization which causes serious performance degradation (~20x in my tests) of some
RegExp
-related methods likeString#split
, #306 - Added a workaround of V8 deoptimization which causes serious performance degradation (up to 100x in my tests) of
Array#splice
and slightlyArray#{ filter, map }
, #677 - Fixed work of
fetch
with polyfilledURLSearchParams
, #674 - Fixed an edge case of
String#replaceAll
with an empty search value - Added compat data for Chrome 80
package-lock.json
no longer generated in libraries