Hello everybody, So far, many thanks for the great work, already done! We are using SLF4J and LogBack in an large Eclipse RCP Client/Server project for our logging purposes. During one of our last design sessions, we were discussing the options, how to deal with standard operations while logging. In detail, every of our RCP Clients is logging towards a central LogServer and we have a business requirement for putting the authenticated User as well as some other detail information into the MDC and pass it along with every single LOGGER-call. I've searched a bit and didn't find direct support for that demands. Any hints how to solve such a requirement properly or pointers in the right direction towards documentation, etc. would be greatly appreciated. BTW ... any news/updates regarding "BUG 57" http://bugzilla.qos.ch/show_bug.cgi?id=57 Are there any plans to support JDK 1.5 variable param lists in LogBack-Logger instead of Object[]? Are there any plans to extend the Logger-Calls for Throwable to support also formatted messages? Many thanks in advance for your help kind regards from sunny Vienna K:) --------------------- Klaus UNGER, BSc Münzgasse 3/40+42 A-1030 Wien mobil: +43 (664) 4236046