Hi Dhivya,

This still works the same as in old versions, by using the -u command. For example, if you have an app named "sales_management" and an app named "project_management" you would do:

./odoo-bin -u sales_management,project_management -c /etc/odoo-server.conf

Alternatively you can stop and start your Odoo instance, update the apps list from Apps > Update apps" and by then clicking on "Update" in the app itself.
You can find more information about the command line options in the official documentation

Regards,
Yenthe

As per the previous versions you can upgrade the module through the terminal and PyCharm(if you are using the PyCharm IDE.

Example:

./odoo-bin -c /path/path/config_file.conf -d database -u module_name

You can use this commande

cd odoo-server/

./odoo-bin -c /etc/odoo-server.conf -d data_base_name -u module_name

It worked in windows odoo14 community edition.  Make sure to the dbname, modulename and the .conf file path for the community edition.

python odoo-bin -d databasename-u modulename -c debian/odoo.conf --stop-after-init