On 2020-04-28 16:55, Tony Whyman wrote:
2. There is a risk of a stealth (ICU) upgrade under Linux if the upgrade affects indexes that depend upon character set collation sequences.
FYI - gfix is ready to help with this, it's enough to use switch: -icu fix database to be usable with present ICU version Firebird-Devel mailing list, web interface at https://lists.sourceforge.net/lists/listinfo/firebird-devel