Updating Asterisk

Hi guys, real quick question, is there an “Update” method for revision of Asterisk. I am currently using Asterisk 10.9-Digiumphones and would like to update to 10.12.4-digiumphones for testing purposes. Does one simply uninstall the previous version and then recompile the new version, or is there a path to update I am unaware of.

Any help you can give would be greatly appreciated. Google has yielded no real results on this topic for me.

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