Dear all, *!!! Tomorrow is the last day for submitting to IWST !!!* *Due to numerous requests the deadline for submissions has been extended until june 22, 2013.* This is a kind reminder that the deadline for *International Workshop on Smalltalk Technologies* (IWST 2013) is approaching (june 22). The call for paper is accessible online at: http://www.esug.org/wiki/pier/Conferences/2013/InternationalWorkshop. As for past editions, accepted papers will appear in ACM Digital Libary. IWST 2009 : http://dl.acm.org/citation.cfm?id=1735935 <http://dl.acm.org/citation.cfm?id=1735935> IWST 2010 : http://dl.acm.org/citation.cfm?id=1942790 <http://dl.acm.org/citation.cfm?id=1942790> IWST 2011 : http://dl.acm.org/citation.cfm?id=2166929 <http://dl.acm.org/citation.cfm?id=2166929> IWST 2012 : http://dl.acm.org/citation.cfm?id=2448963 <http://dl.acm.org/citation.cfm?id=2448963> We welcome contributions on all aspects, theoretical as well as practical, of Smalltalk related topics such as: * Aspect-oriented programming, * Design patterns, * Experience reports, * Frameworks, * Implementation, new dialects or languages implemented in Smalltalk, * Interaction with other languages, * Meta-programming and Meta-modeling, * Tools Loïc Lagadec & Alain Plantec co-chairs of IWST 2013. --