---
features:
  - |
    Now puppet-heat supports overiding ``RequestHeader`` statements in apache
    vhost configuration. Use the new ``request_headers`` parameter to define
    the configuration value.

upgrade:
  - |
    Default value of ``heat::wsgi::apache_api_cfn::vhost_custom_fragment`` has
    been updated to ``undef`` and now the new ``request_headers`` parameter
    is used to define the default ``RequestHeader`` statement. Please update
    these parameters accordingly.