Hello, Could you please please consider adding the ability to create missing parent directories in FileAppender in Logback Core? Suppose I have the following: (tomcat home)/logs/ And I'd like for my webapp to automatically create a subdirectory, so after I run it I have: (tomcat home)/logs/my-webapp/my-webapp.log Right now if I just configure Logback to use the above path, it obviously fails, I have to create /my-webapp/ manually. The code to do it (at least the most basic version is trivial, just modify public synchronized void setFile() throws IOException { so it contains: closeWriter(); // modified code starts here if( mkdirs ) { File f = new File(fileName); File fParent = f.getParentFile(); if( !fParent.exists() ) { fParent.mkdirs(); } } // modified code ends here this.writer = createWriter(new FileOutputStream(fileName, append)); And obviously add mkdirs property and import java.io.File. Greetings, Lilianne E. Blaze