Updation of custom app version

Hi all,
Hope everyone are doing well. I am trying to change the app version for my custom based on the requirement. But while merging the branches I am getting conflits.

My requirement: To follow app version structure followed by frappe team.
Eg: Dev branch on - 13.2.5
Master on - 13.0.0
Do anyone have any idea on how frappe does this actions in git ?

If yes, please respond to the topic.
Hoping to hear from someone overhere.