This documents describes when to apply Service Pack (SP) or hotfix upgrades.
Do I need to rerun a script each time I upgrade to a new Service Pack level?
Currently there is not a consistent need to run the script every time your installation is upgraded to a new SP level, which is indicated by the third digit in the version number.
See the Release Notes that accompany each new SP patch release which details if this step is required. Release Notes do not accompany hotfixes (released in between the less frequent SPs).
Upgrade to v7.0.2.00.xx (SP2 level) or Later for the First Time
Dependent upon each SP, the Release Notes might instruct you to run /bin/cis_upgrade_patch.sh (or .bat if on Microsoft Windows) after you unzip the patch/hotfix file that takes you a level higher than SP1 for the first time in your installation. If you upgrade Service Pack levels away from SP1 or v7.0.0 you will need to run this script.
Upgrade from v7.0.0.00.xx to v7.0.1.00.xx (Not Higher than SP1 Level)
The Release Notes instruct you to run /bin/update_patch.sh (or .bat if on Windows). The update_patch script has been abandoned and is no longer used since v7.0.2, but the file still exists in installs that performed a prior upgrade from v7.0.0 to v7.0.1.