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Install ERPNext: v11.1.44 (HEAD)

I want to install specific version of erpnext , what can I do?

Installed Apps

ERPNext: v11.1.44 (HEAD)

Frappe Framework: v11.1.39 (HEAD)

Maybe try these for example?

Plz give me a detail command

If you hesitate from concerns you will break your environment, why not setup a test environment to learn from - for example with VirtualBox you can take a snapshot, then test changes and restore an earlier snapshot to recover from errors?

Hi revant_one’s post yesterday should help with clues How to manually install ERPNext v10.1.14 on Ubuntu 18.04