> A message by Wikipedia system administrator Brion Vibber from January 2007 warned that deleted revisions could theoretically be cleared without warning at any time, and a script exists to perform this function. However in practice they have only been cleared twice, both times due to technical issues – once on 3 December 2003, because the Wikipedia database was transferred to a new server, and once on 8 June 2004 due to a database crash.
This is, of course, different from the revision history for an article, which shows each edit and is available for public inspection, e.g., ...
https://en.wikipedia.org/wiki/Wikipedia:Viewing_and_restorin...
However ...
> A message by Wikipedia system administrator Brion Vibber from January 2007 warned that deleted revisions could theoretically be cleared without warning at any time, and a script exists to perform this function. However in practice they have only been cleared twice, both times due to technical issues – once on 3 December 2003, because the Wikipedia database was transferred to a new server, and once on 8 June 2004 due to a database crash.
This is, of course, different from the revision history for an article, which shows each edit and is available for public inspection, e.g., ...
https://en.wikipedia.org/w/index.php?title=Deep_learning&off...