16 June 2013. EWD1127 has been deleted from the archive, for reasons explained here.
19 November 2010: Added a page indexing the Edsger W. Dijkstra Memorial Lectures.
5 April 2008: Added a link to an oral-history interview of Dijkstra conducted in August 2001.
6 November 2007: We have begun adding summaries of the EWDs. This innovation was suggested by Günter Rote, who contributed the first dozen summaries. Additional contributions of summaries—especially summaries in English of EWDs in Dutch—are most welcome.
2 December 2006: A letter to Communications of the ACM has been appended to EWD496B.PDF withdrawing the manuscript from publication after discovery of an error. Thanks to H.J.M.A.Cuijpers for contributing the letter.
21 February 2006: Descriptors of the EWDs which are the chapters of A Discipline of Programming (Prentice Hall, 1976) have been added to the BibTeX index. Because the book is still in print, PDF images of these EWDs have not been included in the site; the originals are accessible at the Center for American History at The University of Texas at Austin.
5 February 2006: Two interviews have been added to the site. One is a 1985 interview by Rogier van Vlissingen; the other is an audio recording originally broadcast by the U.S. National Public Radio in 1995.
22 December 2005: Wim Feijen discovered EWD75, and kindly sent the archive a PDF copy.
1 November 2005: EWD1240 has been added. This preliminary version of EWD1240a, "A little bit of lattice theory", was discovered and forwarded by Gijs Geleijnse of Philips Research.
6 July 2005: Thanks to Joseph N. Ruskiewicz of ETH Zürich, eight EWDs have been added: