Changing Config Files for Custom Modpack

[Lehmyare]

If I edit files in the config then upload my modpack to the Technic launcher, will the config file changes save?

[plowmanplow]

Provided you update your pack correctly (change what you want locally, create your modpack archive from that local data, upload your modpack somewhere public and get a direct URL, change your pack settings to refer to the new direct URL and increment the pack version) all clients will get a notification that the pack has updated and allow them to update their installation of your modpack.

[Lehmyare]

Thank You