4.2.1
refactor(box): destructure (#3940)
refactor: destructure modules (#3992)
refactor(locals): utilize hexo-util's Cache()
refactor(permalink): full_url_for() has built in prettyUrls()
Merge pull request #3996 from SukkaW/utilize-hexo-util-cache
refactor(theme/view): faster assignIn (#3987)