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The timezone is now set per Logger instance and not statically, either via ->setTimezone or passed in the constructor. Calls to Logger::setTimezone should be converted.
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Removed non-PSR-3 methods to add records, all the
add*(e.g.addWarning) methods as well asemerg,crit,errandwarn. -
HandlerInterfacehas been split off and two new interfaces now exist for more granular controls:ProcessableHandlerInterfaceandFormattableHandlerInterface. Handlers not extendingAbstractHandlershould make sure to implement the relevant interfaces. -
HandlerInterfacenow requires theclosemethod to be implemented. This only impacts you if you implement the interface yourself, but you can extend the newMonolog\Handler\Handlerbase class.