We did an upgrade of SQL Server 2014 to 2016. In the development environment we did an in-place upgrade, which left the master database at compatibility level 120. But in production we did migration to new server so there master is compatibility level 130.

I would like to have both environments as similar as possible. Additionally we have one application which is running its queries from the master database, so theoretically they can behave differently between environments.

Is it safe to change compatibility level of the master database from 120 to 130?