The default number of processes (the number of CPU cores that the instance can maximally use) was decreased from 4 to 1. This change affects only newly created instances, existing instances are not modified.

The Dispatcher's Rate Limit option has been moved to the Rule object. The Rate Limit functionality was not available since version 3.5, but is available again in version 6.0. For details, see Procedure 6.5.7, Connection rate limiting in Zorp Professional 7 Administrator Guide.

Zorp Professional 7 now supports the RFC 5424 (IETF) syslog protocol for remote syslog destinations.

Zorp Professional 7 now supports the TCP protocol for OpenVPN (SSL VPN) connections. For details, see Procedure 16.4.2, Configuring SSL connections in Zorp Professional 7 Administrator Guide.

The deprecated PSSL class has been removed and converted to the new SSL configuration method.

The deprecated VirusBuster search engine has been removed, configurations still using this engine have been updated to explicitly drop traffic with an error message referencing the removal.

The Zorp Management Console version 7 no longer supports the Windows XP operating system, as it has reached its End of Life. You can use ZMC on Windows Vista and later.

The Zorp > Instance > Edit parameters > General > Thread stack limit option has been removed. From now on, a Zorp process uses the default value of the stack size of the host (which is currently 8 Mb for Ubuntu 18.04 LTS). Zorp uses this memory only when it is actually needed by the thread, it is not allocated in advance, thus resident memory consumption and performance are not affected by the change.

The behaviour of the -l (--no-syslog) Zorp process parameter has changed, it does not imply the foreground mode any more by default. In order to achieve the old behaviour, that is to imply the foreground mode as well, the -l process parameter has to be applied together with the -F (--foreground) parameter.