Some parameters were added to the configuration file and need to be merged from the template into the working configuration.
The highlights are: ENABLE_CONVERSATION_VIEW and ENABLE_ATTACHMENT_DRAG_OUT.
ADMIN_API_ENDPOINT is also worth mentioning; this change increases the speed of g-web in some situations.
Documentation: The parameters are well explained in the configuration file.
Compare these two files with Vim or another tool of your choice. Here is the Vim method:
vim -d /etc/grommunio-web/config.php /etc/grommunio-web/config.php.rpmnew
Migrate all new blocks from the template file (right) to the configuration file (left).
After saving the configuration file, delete the template file: rm /etc/grommunio-web/config.php.rpmnew,
(for Debian, use rm /etc/grommunio-web/config.php.dpkg-dist).
There is no need to restart any services because g-Web rereads the configuration file with every login.