old_contents: ﻿from django import template
  
  register = template.Library()
  
  @register.simple_tag(name='site_version_info')
  def site_version_info():
      return 'v0.0034 at 30.09.2020'
  
new_contents: ﻿from django import template
  
  register = template.Library()
  
  @register.simple_tag(name='site_version_info')
  def site_version_info():
      return 'v0.0035 at 15.10.2020'
  
subject: Update version_info.py