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| Introducing Secured environment support, vastly expanded Versioning support including import/export.
| Fixed Templates, better documentation, more demos, and NiFi version backtesting.
**Potentially Breaking Changes**
*Users should check the updated documentation and ensure their tests pass as expected*
* Import/Export of Flow Versions was reworked significantly and renamed to correct bugs and remove coding complications and be generally more obvious in its behavior
* Template upload/download reworked significantly to remove direct reliance on requests and correct bugs in some environments
* Reworked many list/get functions to be more standardised as we stabilise the approaches to certain tasks. This should not change again in future
* Standardised bad user submission on AssertionError, bad API submission errors on ValueError, and general API errors on ApiException. This standard should flow forwards
* Switched ruamel.yaml from >15 to <15 as advised in the project documentation, as >15 is not considered production ready
**Known Issues**
* Python2 environments with older versions of openssl may run into errors like 'SSLV3_ALERT_HANDSHAKE_FAILURE' when working in secured environments. This is not a NiPyApi bug, it's a problem with py2/openssl which is fixed by either upgrading openssl or moving to Python3 like you know you should
**New Features**
* Added support for working with secured NiFi environments, contributed by KevDoran
* Added demo compatibility between secured_connection and console to produce a rich secured and version-controlled demo environment
* Added many secured environment convenience functions to security.py
* Integrated tokenAuth support throughout the low-level clients
* Added simple Docker deployment support in utils module for test, demo, and development
* Standardised all documentation on more readable docstrings and rst templates across the entire codebase
* Significantly expanded versioning support, users should consult the refreshed documentation
* Added experimental support for cleaning queues, process_groups, and setting scheduling of various components
* Many calls now have an auto-refresh before action option to simplify applying changes
* Implemented short and long wait controls for relevant functions to allow more deterministic changes
* Implemented generic object-list-filtering-for-a-string-in-a-field for many response get/list types
* Standardised many responses to conform to a common response contract: None for none, object for single, and list-of-objects for many
* Implemented import/export to json/yaml in versioning
* Added regression/backtesting for many functions going back through major release versions to NiFi-1.1.2. More details will be obvious from reading tests/conftest.py
* Test suites now more reliably clean up after themselves when executed on long-running environments
* Apparently logging is popular, so standard Python logging is now included
**Other notes**
* Various low-level SDK bugfixes corrected in the swagger spec and updated in the provided client
* Enhanced Template and Flow Versioning to handle significantly more complex flows
* Significantly enhanced testing fixtures
* Refactored several common functions to utils.py, and moved several common configurations to config.py
* versioning.get_flow will now export the raw Registry object for convenience when serialising flows
* Significantly improved Py2/Py3 compatibility handling, and import management within the package
* Removed docs dependency on M2R by converting everything over to reStructuredText