All,
We were just upgraded to 2018.1 this morning and now all of our queries that include a date in the where clause error.

Example.  We have a C# program that uses the ODBC OpenQuery to get some data out of NetSuite.  Here is the query

    select * from OPENQUERY(NETSUITE_PRODUCTION, '
        --select sum(item_count) as item_count
        select date_last_modified
        from Administrator.transactions  trans
        inner join Administrator.transaction_lines tln on tln.transaction_id = trans.transaction_id
        inner join Administrator.LOCATIONS loc on loc.location_id = tln.location_id
        where transaction_type = ''Item Receipt''   
            and loc.name = ''Warehouse''