If you have an existing Velocity installation, you can upgrade or update it instead of performing the new installation described in the Updating from v3.6 (or higher) to v3.8.5 section.
Upgrades versus Updates
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Moving from any Velocity 3.6 release (such as 3.6 SP3) to a 3.7 release (such as 3.7 SP1) is an update instead of an upgrade. To better understand this change, look at the following diagram, which shows the upgrade paths from some earlier Velocity versions to the initial 3.7 release. Note that when moving from 3.6 to 3.7, you must use the Velocity Update Wizard instead of the Velocity Installer.
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Your upgrade path to the Velocity 3.8.5 release depends on which older version of Velocity you are currently running. To summarize your options (as shown in the previous diagram):
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If you are still running an older version of Velocity, which is not shown in the diagram, you must start by upgrading to the 3.1 KB640 release. Then you should upgrade to the 3.5 SP2.1 release, upgrade to the 3.6 SP3 release, then update to the 3.7 or 3.8 release.
If running any 3.5 release, you must upgrade to the 3.6 SP3 release and then update to the 3.7 or 3.8 release.
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