How to update ERPNext, Frappe framework, Frappe HR to latest versions

Hi, below is my erpnext configuration. How to update all to latest versions without losing form customizations or breaking anything? As you can see frappe hr is v16 dev. Kindly provide steps please.

ERPNext: v14.56.0 (version-14)

Frappe Framework: v14.60.0 (version-14)

Frappe HR: v16.0.0-dev (develop)

Update versions

ERPNext: v15.77.0
frappe framework: v15.79.0
frappe hr: v15.49.2

try this.

But I have frappe hr v16 dev. what should we do about it?

Simple. Switch-to-branch version-15 hrms