• Fixed String.prototype.substr feature detection and compat data
• Removed mistakenly added .forEach from prototypes of some DOM collections where it shouldn't be, #988, #987, thanks @moorejs
• Added cause to AggregateError constructor implementation (still without adding to the feature detection)
• Families of .at and .findLast methods marked as supported in Safari TP
• Added Electron 16.0 compat data mapping