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C.15 Upgrading from 4.1 to 4.2

Upgrading to this version does not require any special efforts. You can use your configuration files and filter scripts without any changes. The only difference worth noticing is that starting from this version mailfromd is always compiled with asynchronous syslog implementation. The --enable-syslog-async configuration file option is still available, but its meaning has changed: it sets the default syslog implementation to use (see syslog-async). Thus, it can be used the same way it was in previous versions. You can also select the syslog implementation at run time, see –syslog-async option, for more detailed information.