At $DAYJOB I started using Subversion to keep my IT Documentation in a state that could be mirrored to several locations just in case the core infrastructure went down.

"Don't keep the recovery documentation on the same volume you are trying to recover" I tell myself.

Tortoise Subversion client releases updates regularly and I have kept an archive of older software just in case I need to roll back.

I got a laugh when I checked my Subversion stash. Earliest time stamp ~2005

17/11/2005  01:58 PM         6,185,984 TortoiseSVN-1.2.6.4786-svn-1.2.3.msi
16/01/2006  09:56 AM         7,599,616 TortoiseSVN-1.3.0.5416-svn-1.3.0.msi
01/03/2006  04:36 PM         7,595,008 TortoiseSVN-1.3.2.5840-svn-1.3.0.msi
15/06/2006  05:13 PM         7,802,368 TortoiseSVN-1.3.4.6692-svn-1.3.2.msi
03/07/2006  12:30 PM         7,798,784 TortoiseSVN-1.3.5.6804-svn-1.3.2.msi
03/10/2006  10:58 AM         9,134,080 TortoiseSVN-1.4.0.7501-win32-svn-1.4.0.msi
18/12/2006  11:39 AM         9,154,560 TortoiseSVN-1.4.1.7992-win32-svn-1.4.2.msi
05/02/2007  12:41 PM         9,212,928 TortoiseSVN-1.4.3.8645-win32-svn-1.4.3.msi
13/06/2007  10:51 AM         9,214,464 TortoiseSVN-1.4.4.9706-win32-svn-1.4.4.msi
26/10/2007  12:04 PM         9,212,928 TortoiseSVN-1.4.5.10425-win32-svn-1.4.5.msi
08/01/2008  10:27 AM         9,345,536 TortoiseSVN-1.4.7.11792-win32-svn-1.4.6.msi
11/03/2008  10:54 AM         9,350,656 TortoiseSVN-1.4.8.12137-win32-svn-1.4.6.msi
16/07/2008  11:30 AM        18,652,672 TortoiseSVN-1.5.0.13316-win32-svn-1.5.0.msi
14/08/2008  02:46 PM        18,682,368 TortoiseSVN-1.5.2.13595-win32-svn-1.5.1.msi
04/09/2008  12:37 PM        18,721,280 TortoiseSVN-1.5.3.13783-win32-svn-1.5.2.msi
17/10/2008  11:17 AM        18,764,288 TortoiseSVN-1.5.4.14259-win32-svn-1.5.3.msi
11/10/2008  10:30 PM               202 TortoiseSVN-1.5.4.14259-win32-svn-1.5.3.msi.asc
12/11/2008  01:06 PM        18,763,264 TortoiseSVN-1.5.5.14361-win32-svn-1.5.4.msi
31/12/2008  12:51 PM        18,722,816 TortoiseSVN-1.5.6.14908-win32-svn-1.5.5.msi
06/02/2009  09:46 AM        18,721,792 TortoiseSVN-1.5.7.15182-win32-svn-1.5.5.msi
19/02/2009  11:52 AM        18,722,816 TortoiseSVN-1.5.8.15348-win32-svn-1.5.5.msi
05/03/2009  04:52 PM        18,724,864 TortoiseSVN-1.5.9.15518-win32-svn-1.5.6.msi
18/10/2010  11:43 AM        17,996,288 TortoiseSVN-1.6.11.20210-x64-svn-1.6.13.msi
11/01/2011  09:30 AM        17,995,264 TortoiseSVN-1.6.12.20536-x64-svn-1.6.15.msi
22/06/2011  11:45 AM        18,128,896 TortoiseSVN-1.6.16.21511-x64-svn-1.6.17.msi
26/08/2009  03:35 PM        19,854,848 TortoiseSVN-1.6.5.16974-win32-svn-1.6.5.msi
18/11/2009  12:15 PM        19,854,848 TortoiseSVN-1.6.6.17493-win32-svn-1.6.6.msi
16/03/2010  11:17 AM        19,868,672 TortoiseSVN-1.6.7.18415-win32-svn-1.6.9.msi
16/11/2011  01:18 PM        20,619,264 TortoiseSVN-1.7.1.22161-x64-svn-1.7.1.msi
08/02/2012  12:56 PM        13,697,024 TortoiseSVN-1.7.4.22459-win32-svn-1.7.2.msi
09/02/2012  09:13 AM        20,574,208 TortoiseSVN-1.7.4.22459-x64-svn-1.7.2.msi
24/04/2012  10:04 AM        20,922,368 TortoiseSVN-1.7.6.22632-x64-svn-1.7.4.msi
28/08/2012  02:32 PM        21,311,488 TortoiseSVN-1.7.8.23174-x64-svn-1.7.6.msi
02/10/2012  12:59 PM        21,299,200 TortoiseSVN-1.7.9.23248-x64-svn-1.7.6.msi
10/09/2013  01:48 PM        19,353,600 TortoiseSVN-1.8.2.24708-x64-svn-1.8.3.msi