---
features:
  - Adds optional section ``conditions`` for hot template (
    heat_template_version.2016-10-14) and ``Conditions`` for
    cfn template (AWSTemplateFormatVersion.2010-09-09).
  - Adds some condition functions, like ``equals``, ``not``, ``and``
    and ``or``, these condition functions can be used in ``conditions``
    section to define one or more conditions which are evaluated
    based on input parameter values provided when a user creates or
    updates a stack.
  - Adds optional section ``condition`` for resource and output definitions.
    Condition name defined in ``conditions`` and condition functions can be
    referenced in this section, in order to conditionally create resources
    or conditionally give outputs of a stack.
  - Adds function ``if`` to return corresponding value based on condition
    evaluation. This function can be used to conditionally set the value of
    resource properties and outputs.

Add releasenote for conditions function
Add releasenote for conditions function

Change-Id: I051eb37201218a424c0c0b2b1e3014e355b1ce01
Blueprint: support-conditions-function
