old_contents: import re
  __version__ = '2.0.4'
  
  support_versions = ['0.9']
  
  
  def is_a_version(version):
      version_pattern = re.compile(r'\d+\.\d+\.\d+')
      if version_pattern.match(version):
          return True
      else:
          return False
  
  
  def is_supported_version(version):
      pattern = re.compile(r'\d+\.\d+')
      major_version = pattern.match(version).group()
      for v in support_versions:
          if major_version == v:
              return True
      return False
  
new_contents: import re
  __version__ = '2.0.4'
  
  support_versions = ['2.0']
  
  
  def is_a_version(version):
      version_pattern = re.compile(r'\d+\.\d+\.\d+')
      if version_pattern.match(version):
          return True
      else:
          return False
  
  
  def is_supported_version(version):
      pattern = re.compile(r'\d+\.\d+')
      major_version = pattern.match(version).group()
      for v in support_versions:
          if major_version == v:
              return True
      return False
  
subject: update support version to 2.0: