All,

Thanks to a few informal code reviews, version 2.1.0 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].

This release incorporates changes to enrich the code based on additional review 
and feedback from members of the WikiMedia team.  The extension fixed a few 
bugs, now supports the newer JSON-based i18n system, and has removed three 
configuration options in order to streamline the code.

We fully appreciate the feedback we’ve received and appreciate any additional 
feedback the community can provide.  Our goal is to make the extension as solid 
as possible for MediaWiki users everywhere.

The extension works with Memento clients [4].  Memento clients allow one to 
select a past date and time to browse, and then browse the web as if it were 
that date and time.  Installing this extension in a MediaWiki installation 
allows Memento clients to seamlessly transition from using web archives to 
wikis, allowing one to view the past versions of web pages without 
interruption.  This has numerous applications, from avoiding spoilers [5] to 
studying the evolution of legal discourse.

Additionally, this extension attempts to address the issue of "temporal 
coherence", ensuring that old revisions of images and templates match the 
revision of the page they are embedded in.  This functionality is still 
optional and experimental, but has received some interest from the community.

Earlier this summer, we presented our experiences with reconstructing the past 
using MediaWiki [6, 7], and demonstrated using the extension to avoid spoilers 
in Game of Thrones [8, 9, 10] at WikiConference USA 2014.

The extension is fully compliant with RFC 7089 [11], 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.  Videos [12] and [13] show Memento at work in the web at 
large, the latter paying attention to navigation within Wikipedia.

The Memento protocol is currently used by major web archives [14] and supported 
by the International Internet Presevation Consortium [15].  Though we have the 
support of web archives, the Memento team also considers time travel in 
MediaWiki to be a major use of the protocol.

We really appreciate the feedback from the Wikimedia team and look forward to 
additional assistance and improvements.

Thank you again, on behalf of the Memento Team,

Shawn M. Jones
Graduate Research Assistant
Department of Computer Science
Old Dominion University

Email:          [email protected]
Research group: http://ws-dl.blogspot.com
Twitter:        @shawnmjones

—

[1] https://github.com/mementoweb/mediawiki/releases/tag/v2.1.0
[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_Mediawiki:_Programmatic_Issues_and_Solutions
[7] 
http://www.slideshare.net/shawnmjones/reconstructing-the-past-with-media-wiki-35333484
[8] 
http://wikiconferenceusa.org/wiki/Submissions:Using_the_Memento_Mediawiki_Extension_to_Avoid_Spoilers
[9] 
http://www.slideshare.net/shawnmjones/using-the-memento-mediawiki-extension-to-avoid-spoilers-35333526
[10] https://www.youtube.com/watch?v=ciClYjTnscs
[11] http://tools.ietf.org/html/rfc7089
[12] http://www.youtube.com/watch?v=0_70lQPOOIg
[13] http://www.youtube.com/watch?v=WtZHKeFwjzk
[14] http://mementoweb.org/depot/
[15] http://netpreserve.org




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