Upgrading Mantis

Based on the upgrading section of the mantis manual.
http://www.mantisbt.org/manual/manual.installation.upgrading.php

Versions used
Upgrade from 1.1.6 to 1.2.0

Steps

1. Backup the mantis database
2. Backup the mantis directory on the web server
3. Rename the file c:\apache\htdocs\mantis\mantis_offline.php.sample to mantis_offline.php
4. Unzip the latest mantis package to a temporary folder e.g. C:\temp
5. Copy the contents of c:\temp\mantisbt-1.2.0 to the web server e.g. C:\apache\htdocs\mantis, replacing all existing files and folders
6. Delete the file c:\apache\htdocs\mantis\core\my_view_inc.php
7. Using a browser, navigate to localhost/mantis/admin/install.php
8. Supply a database username and password to use to upgrade the database
9. Click on the install/upgrade database button
10. Installation should be successful
11. Confirm the installation status by navigating to localhost/mantis/admin/check.php
12. Delete the file c:\apache\htdocs\mantis\mantis_offline.php. It may be appropriate to delete all old files from the previous version (those which haven't been replaced because they no longer exist in the new version)
13. Delete the folder c:\apache\htdocs\mantis\admin
14. Using a browser, navigate to localhost/mantis to log in and use the latest version of mantis