The following lines were added (+) and removed (-):
Note: using the command line switches --new-instance --no-remote --ProfileManager in testing versions 27.7.2 and 28.8.1 could run at the same time. The switches were used when launching the 28.8.1 binary only with 27.7.2 having been launched first without any special switches. If it is not necessary for you to have them both running at the same time, launching 28.8.1 without command line switches was able to access the profile of 27.7.2 without altering the profile data in a way that prevented 27.7.2 from being able to use the profile data. However, as future versions are released this profile backwards compatibility may break, which is why it is recommended you use individual profiles.