FIFTH and FINAL ANNOUNCEMENT CT2017: INTERNATIONAL CONFERENCE ON CATEGORY THEORY AND ITS APPLICATIONS July 16-22, 2017 University of British Columbia Vancouver, Canada Dear Colleagues, The CT2017 program of talks and social events is now available on the following two websites http://www.pims.math.ca/scientific-event/170716-c2ictc http://www.mat.uc.pt/~ct2017 Invited Speakers D. Hofmann, R. Lucyshyn-Wright M. Menni R. Pare T. Van der Linden In an event related to CT2017, a set of expository talks will be presented in the Kan Extension Seminar on Monday afternoon July 17. Scientific Committee M. M. Clementino M. Gran G. Janelidze(Chair) P. T. Johnstone J. L. MacDonald S. Mantovani R. H. Street W. P. Tholen Organizing Committee M. Christiansen(Chair) J. L. MacDonald J. Picado We look forward to welcoming all the registered participants to the University of British Columbia in Vancouver, Canada. We have an excellent program of talks and social events lined up in a beautiful location! This is the 20th anniversary of the first Vancouver CT meeting. Earlier meetings were held here in 1997, 2004 and 2011. Regards, Lauchie MacDonald [For admin and other information see: http://www.mta.ca/~cat-dist/ ]