A new migration setting, Migrate color styles to generic, is added to the Material Styles Migration dialog box. When selected, it creates a generic appearance for each color style in the appearance of the Inventor 2012 shaded view color style.
The new option “Migrate Color Style to Generic” replaces the need to set the environment variable "InvCM_ForceConvertToGeneric" which converted legacy colors to generic type in Inventor R2013. For more information, refer to this post on the Inventor Product Support blog Being Inventive.
A new setting, Update Local materials And Appearance is added in the Task Scheduler Migration Options dialog box. This setting will batch update all local materials and appearances by automatically comparing with Project active Library. In Task Scheduler, in both the Migration task and the Update Design task, this setting updates materials and appearances in batches of files. Instead of opening the files manually, you can update your batch of models to the styles in a library of the active project. When you select the option, all local materials and appearances are updated automatically to the styles in the library in the active project.