We are trying to upgrade our succesfully running openldap 2.2.19 server
to newer version (2.3.28).
We use unicode (russian) strings for DNs & attribute values.
After upgrade all software we use to search information in LDAP directory
returns no results when case of letters does not match.
If case of letters matches, everything is OK.
On ASCII strings search works fine.
Older versions (2.2.x) work good.
Is it bug or feature?