---
features:
  - |
    The new ``swift::constraints`` class, which manages the
    ``[swift-constraints]`` options, has been added.

deprecations:
  - |
    The ``swift::max_header_size`` parameter has been deprecated in favor of
    the new ``swift::constraints`` class.

  - |
    The ``swift::objectexpirer::auto_create_account_prefix`` parameter has been
    deprecated. Use the ``swift::constraints::auto_create_account_prefix``
    parameter instead.
