Page Comparison

Welcome to the Red Book for HPCC Systems^® 9.8.x series. 

NOTE: You can plan any work that may be needed for the Regex changes before upgrading.

You may benefit from glancing at other Red Book entries when making a large jump between releases.

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 For more information see: https://www.regular-expressions.info/replacebackref.html:

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• The old Regex libraries allowed illegal "bare" POSIX character class names but PCRE2 does not.

For example:

//If you have this:            
REGEXFIND('[:alpha:]', 'Whatever'); 
//You should now use this:
REGEXFIND('[[:alpha:]]', 'Whatever');

The first item is actually beneficial because, more than likely, it produced a silent error. The other three items could require code changes to make existing regex patterns compatible with PCRE2, but the good news is that the changes are compatible with Boost::regex and ICU already. You can make the changes in your code now, before upgrading the platform to 9.8.

For more detailed information, seeChanges to Regex Support in HPCC Systems 9.8.0

Change in LDAP Support

Beginning with 9.8.0, a change in LDAP support may affect your cluster. This section only applies to clusters using the LDAP security manager plugin with caching enabled. Additionally, it only applies if you are using default file scope permissions to grant access to file scopes that are not managed.

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