All, Thanks to the feedback of Wikimedia developers, version 2.0.0 of the Memento time travel Extension for MediaWiki has been released. The extension can be downloaded via [1]. Information on the extension is available at [2]. A demonstration wiki equipped with the extension is available at [3]. The extension works with Memento clients [4] to allow one to browse pages on an installation of MediaWiki as if it were some datetime in the past. This has numerous applications, from avoiding spoilers [5] to studying the changes in law. Recently, at WikiConference USA 2014, we presented our experiences reconstructing the past using MediaWiki [6, 7], and demonstrated using the extension to avoid spoilers [8, 9]. The extension is fully compliant with RFC 7089 [10], which specifies the Memento protocol. The effort was supported in part by the Andrew W. Mellon Foundation and is a joint effort between Old Dominion University and Los Alamos National Laboratory. The Memento protocol extends HTTP to support content negotiation with time, allowing one to view past versions of web pages. This document [11] provides insight into the added value that the protocol brings to MediaWiki. Videos [12], and [13] show Memento at work in the web at large. The latter pays significant attention to temporal navigation in Wikipedia, and hence illustrates that the Memento Team considers time travel in MediaWiki platforms a major use case of the protocol. Video [14] shows how one could use the Memento MediaWiki Extension to avoid spoilers in fan-based wikis. The Memento protocol is currently used by major web archives [15] and supported by the International Internet Preservation Consortium [16]. Once again, the Memento team is appreciative of all of the feedback from the Wikimedia team, and just because we have reached 2.0.0 doesn’t mean that we don’t seek additional input in order to improve the code. On behalf of the Memento Team, Shawn M. Jones Graduate Research Assistant Department of Computer Science Old Dominion University Email: sjone(a)cs.odu.edu Research group: http://ws-dl.blogspot.com Twitter: @shawnmjones ———— [1] https://github.com/hariharshankar/mediawiki/releases/tag/v2.0.0 [2] https://www.mediawiki.org/wiki/Extension:Memento [3] http://ws-dl-05.cs.odu.edu/demo/ [4] http://bit.ly/memento-for-chrome [5] http://ws-dl.blogspot.com/2013/12/2013-12-18-avoiding-spoilers-with.html [6] http://wikiconferenceusa.org/wiki/Submissions:Reconstructing_the_past_with_… [7] http://www.slideshare.net/shawnmjones/reconstructing-the-past-with-media-wi… [8] http://wikiconferenceusa.org/wiki/Submissions:Using_the_Memento_Mediawiki_E… [9] http://www.slideshare.net/shawnmjones/using-the-memento-mediawiki-extension… [10] http://tools.ietf.org/html/rfc7089 [11] http://www.mementoweb.org/wikipedia/ [12] http://www.youtube.com/watch?v=0_70lQPOOIg [13] http://www.youtube.com/watch?v=WtZHKeFwjzk [14] https://www.youtube.com/watch?v=ciClYjTnscs [15] http://mementoweb.org/depot/ [16] http://netpreserve.org