v20.3.25
refactor(zone.js): drop `isIE` checks (#61091)
fix(zone.js): classes that extend Error should retain cause property (#61599)
refactor: update license text to point to angular.dev (#57901)
fix(zone.js): Support jasmine v6
refactor(zone.js): Improve missing proxy zone error for jest imported (#64497) test functions
build: separate zone.js dependencies into their own directory (#63612)
refactor: remove unnecessary TSLint rule flags (#59365)
docs: set syntax highlighting to the remaining Markdown code examples blocks (#59088)