I think you can see that only in the command line inside your repository (I have seen in another post of yours that your installation is done by git clone operation

git log lists all commits you have git-pulled so far with their ID's

you can compare these ID's to the github.com/odoo/odoo commit ID's and that gives you an idea how recent your version actually is

If you want to check whether you have pulled that latest commit you look up the latest commit ID on github and run

git log | grep [commit_id}

if nothing gets returned from that, you know you have not pulled this latest commit yet.

Generally: many experienced Odoo users probably would not recommend to do pull operations very often on a production server. Each pull/merge bares a risk of breaking something and therefore you should always have a testing server where your try those pulls before doing that inyour production server