Summary: QV12 no longer prints the REM statement to the Document Log.
In QV11 “//” and “/*” comments do not appear in the Document Log, but “REM” comments do appear in the log. I found REM useful to provide some documentation in my logfile or record which branch was taken in an IF-THEN-ELSE.
QV12 has changed the logging of REM. The REM statement will now appear in the log obfuscated as a series of asterisks For example, the statement
REM Beginning of weekly load;
will appear in the log as
2017-05-18 14:24:34 0005 *** *** ******
My understanding is that the change was made to support security standards, as someone could REM a CONNECT string or other sensitive data thereby exposing it in the log.
To provide log documentation, use the TRACE statement instead. I don’t find TRACE as pretty as REM because TRACE generates double lines, but it will do the job.
I maintain a collection of upgrade notes for QV12 that you can download here to assist in your planning. Please do read all the Qlik doc — release notes and help site — as well.