heroku update app code example

Example 1: git push to heroku

$ git push heroku master

Example 2: how to force push to heroku

git push --force heroku master

Example 3: how to update heroku

heroku update
#(OR)
sudo apt update && sudo apt install heroku
# to update heroku

Example 4: heroku and github on termi

$ git push heroku master
Initializing repository, done.
updating 'refs/heads/master'
...