We would like to inform you that the submission deadline for research papers for ICSM 2005, the 21st IEEE International Conference on Software Maintenance has been extended from March 21, 2005 to Sunday, April 3, 2005 - 12.00 PM. This new date will be the final deadline, so submissions after this date cannot be accepted for the reviewing process. Research papers should describe original and significant work in the research and practice of software maintenance and evolution. Case studies, empirical research, and well-designed experiments are particularly welcome. Research papers must not exceed 10 pages in final printed form. Submit to http://www.rcost.unisannio.it/~icsm2005papers by 3 April 2005. The 21st IEEE International Conference on Software Maintenance (ICSM 2005), with associated SCAM, STEP, VISSOFT, WSE and Evolvability will be held 25-30 September 2005 in Budapest, Hungary. It is the world's major international conference for software and systems maintenance, evolution, and management. We invite Research Papers, Industrial Applications, Panels, Tool Demonstrations, Dissertation Forum, and Tutorials. There will be special sections of "IEEE Transactions on Software Engineering" and "Journal of Software Maintenance and Evolution" featuring selected papers of the conference. The submission deadline for Research Papers is 3 April 2005 and for all other presentations 30 April 2005. More information including the Call for Papers is available at the conference website: http://www.inf.u-szeged.hu/icsm2005 Sincerely, Tibor Gyimothy and Vaclav Rajlich Program Co-Chairs