v3.27.0

Enhancements

• Improve serialisation of backed enums. Previously a backed enum would JSON encode to their backing value, but will now include the enum name like EnumName::CaseName (value)
  #639

Fixes

• A number of errors in docblocks have been corrected
  xPaw
  #633
  #637
• Handle serialising pure enums when added as metadata. Previously a pure enum would be JSON encoded as null, but will now be converted to a string like EnumName::CaseName
  #639
• Remove use of the deprecated strftime function
  #640
• Fix session throttling when storage backend doesn't store integers
  #643