Whoa, I just noticed:
#Unicode Technical Standard #58 was published two weeks ago!
Unicode Link Detection and Formatting:
URLs and Email Addresses
https://www.unicode.org/reports/tr58/
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【This document specifies two consistent, standardized mechanisms that address [URL] problems, consisting of:
1 )link detection: detecting URLs and email addresses embedded in plain text that properly handles non-ASCII characters, and
2) minimally escaping: minimal escaping of non-ASCII code points in the Path, Query, and Fragment portions of a URL.】