The Steam page of this mod will always feature the latest version I have made. If for any reason you want an older version, for example you want to finish a campaign on an older patch, you can find older versions via the Dropbox link in the description of the mod. Versions of the mod are labeled with the patch number, for instance if playing in patch 1.27, use Bigger UI V1.27.

Here's a little description of how to install an older version of the mod:
- Download your desired old version from the link on the description tab of this mod
- Create a new mod via the Mod Tools of the Paradox Interactive Launcher (chose a name for this mod) -> This creates a new folder with your chosen name under \Documents\Paradox Interactive\Europa Universalis IV\mod\
- Extract the contents of the downloaded old versions .zip file into the folder with {the name you chose}
- leave file descriptor.mod that was already in the newly created folder. It stays where it was created.

You should now be able to add the manually installed mod to your playsets in the Paradox Launcher.