Will V6 apps run on V8?

[glenn_cogar]

Hi, my organisation is thinking of migrating to v8 from v6. We have a number of v6 applications that share a v6 server and want to convert the main one to v8. If we upgrade the server to run v8, will v6 apps be able to run in this new environment? or will we need to run a v6 and a v8 server? or convert all apps to v8?

[Fetch]

CFMX 8 is not backwards compatible with CFMX 6, so there is no way to know if this will work. I know that a number of tags and parameters were deprecated between v6 and v7, so that's where the problem will lie. There were no deprecated tages/parameters between v7 and v8, so in theory that migration would be fine, but since you're jumping two versions the only way to be sure is to test it on a dev machine.

[Libby_H]

CF8 also has a Code Analyzer feature available under Debugging and Logging within the CF Administrator. Take a look at it. I also went from version 6.1 to version 8, and used this utility.

[glenn_cogar · Accepted solution]

Thanks Fetch and Libby H, thats what I needed to know :)