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Changelog
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v101
----
 * General

   * Increased the performance by removing similar calls for all
     steps
   * Updated substitution to use standard Python substitution. Refer
     to :ref:`Substitution <substitution>` for additional information.
   * Custom substitution can now be functions which request
     any out-of-the-box substitution variables
   * Deprecated ``<>`` for substitution. Use ``${}`` instead.


 * Steps

   * Renamed the step, ``paginator_offset_limit``
     to ``paginator_offset``.
   * Updated the step, ``paginator_offset``, to allow `limit` and `offset`
     to be altered to meet the needs of the API.
   * Added the step, :ref:`jc <steps-jc>`, that provides general
     parsing.
   * Deprecated the step, ``jsonpath``. Use ``jmespath``
     instead as it is more performant.
   * Deprecated the step, ``simple_key``. Use ``jmespath``
     instead as it utilizes the same syntax.
   * Deprecated the step, ``stringint``.
   * Deprecated the step, ``stringfloat``.
   * Fixed an issue with the step ``http`` where a URL could be
     created incorrectly.
   * Updated the step ``http``, to specify how a token should be
     refreshed during the collection cycle. Refer to
     :ref:`Authentication <authentication>` for more information.


 * Custom Step Development

   * Added the following Standard Parameters

     * ``step_args``
     * ``collection``
     * ``credential``
     * ``debug``
     * ``metadata``
     * ``request_id``
     * ``set_metadata``

   * Updated ``Requestor`` custom step development to use the
     Standard Parameters
   * Updated ``Cacher`` custom step development to use the
     Standard Parameters
   * Created a new registration for RequestMoreData
   * Added the flag to specify if a step is ``mutable`` which
     affects the de-duplication process. Refer to
     :ref:`Mutable Steps <mutable-step>` for more information.
   * Deprecated the Standard Parameter, ``result_container``
   * Deprecated the Standard Parameter, ``action_number``
   * Deprecated the Standard Parameter, ``action_arg``
   * Deprecated Processors to specify ``type`` for RequestMoreData
     step. Use ``register_rmd`` instead.
   * Deprecated TypeChecking
   * Deprecated ``silo.low_code.RequestMaker``
   * Deprecated the ability for a Requestor to request the parameter
     ``request``
   * Deprecated the ability for a Cacher that does not consume
     Standard Parameters


 * REST Toolkit Credential

   * Updated the REST Toolkit credential to include `AuthOverride`
     which allows for custom authenticators.
   * Fixed an issue with the REST Toolkit credential where additional
     header fields were not always present.
   * Added a new field to specify the token refresh strategy
     as either key based (dynamic) or time based (static).


v100
----

 * The ``silo_low_code``, ``silo_low_code_steps_rest``, and ``silo_low_code_steps_standard`` libraries.
 * A REST-compatible execution environment.
 * A list of required steps for REST Dynamic Application development.
 * A template PowerPack implementation that demonstrates the use of the required steps.
 * A "REST Snippet Framework" credential for REST authentication configuration.
 * Framework support for user-defined caching, pagination, and dependent collections.
 * Support for these Credential authentication types:

   * Basic
   * Bearer Token
   * API Key
   * OAuth2