Editline is updated in Firebird 3.0 isql console client with UTF-8 support
Editline is used in Firebird isql console client , the last version is already imported in firebird 3.0
https://github.com/asfernandes/firebird/tree/master/extern/editline
So it brings UTF-8 support at last in the console with a few patches
http://tracker.firebirdsql.org/browse/CORE-362
Thanks to Frank Schlottmann-Gödde for his efforts
ps:It’s history in Firebird tree is a little bit convoluted http://firebird.1100200.n4.nabble.com/firebird-devel-Editline-digging-into-not-just-cmdline-history-was-qmtesting-td1124010.html