A new version of Studio will be released soon which will have breaking changes, that means older versions of plugins are not compatible with Studio 2019. In older versions of the plugins manifest file needs to be updated with maxvalue attribute. Adding that attribute will prevent user to install an older version to Studio 2019.

Without maxversion attribute:

With maxversion attribute:

What should be updated

Where are few steps you need to do make your plugin to support maxversion attribute:

• From NuGet download the latest version of Sdl.Core.PluginFramework.Build (15.0.2)

• Update pluginpackage.manifest.xml file by adding maxversion="15.0"  

• Last step is to update csproj of the project. Right click on project-> Unload -> Edit .csproj

Search for <PluginDeploymentPath> and change 15 with 14 from the path:

Original: <PluginDeploymentPath>$(AppData)\SDL\SDL Trados Studio\15\Plugins</PluginDeploymentPath>

Updated : <PluginDeploymentPath>$(AppData)\SDL\SDL Trados Studio\14\Plugins</PluginDeploymentPath>

Right click -> Reload solution -> Rebuild solution.