https://issues.dlang.org/show_bug.cgi?id=12455
--- Comment #4 from [email protected] --- Commits pushed to master at https://github.com/D-Programming-Language/phobos https://github.com/D-Programming-Language/phobos/commit/c131da58341b5af00feedd3dc535f2915cbdae0e Fix issue 12455 [reg]Bad lowercase mapping for 'LATIN CAPITAL LETTER I WITH DOT ABOVE' Also as part of a fix restores a test case in string.d to exactly match older behaviour. Some extended greek is not upper but title case, yet changes on toUpper. https://github.com/D-Programming-Language/phobos/commit/ced559888f8d244c13bcd93ef5c8412ce92ece82 Merge pull request #2304 from DmitryOlshansky/issue-12455 [REG]Fix issue 12455 Bad lowercase mapping for 'LATIN CAPITAL LETTER I W... --
