Due to refactoring there are quite a lot of changes to the interface and the database. A new major version was chosen to signal this break.
**Breaking Changes:**
* **Dropped support for Python 3.6 and 3.7!**
* Python 3.6 version has end of life set for December 2021.
* Had to also drop the support for Python 3.7 in order to get a stable API for asyncio.
* The database now contains many more SQL functions and stored procedures. *You must upgrade the schema using the corresponding part of the SQL script.* This is basically code that previously was found mixed with the Python code. It was moved to the database in order to make the code of the package easier to read and maintain.
* **Some functions have been moved!** (or to be precise: Their aliases in the main class have been removed to reduce duplicated code.)
* All methods directly regarding labels can easily be accessed via `your_exo_object.labels.label_function`. That is, *if* you need to access them directly.
* All methods regarding the host blocklist have been moved. They can be accessed via `your_exo_object.blocklist.blocklist_function`.
* All methods regarding error handling must be accessed via `your_exo_object.errorhandling.errohandling_method`.
* The method `exoskeleton.prettify_html` has been moved to `exoskeleton.helpers.prettify_html`.
* All methods with the prefix `job_` now are found in `your_exoskeleton_object.jobs.without_the_prefix`. For example: `exoskeleton.job_define_new` is now `exoskeleton.jobs.define_new()`.
**Other Changes**:
* Small bugfixes.
* Updated and new dependencies.
* Improved code tests:
* Increased test coverage.
* All tests now also run with Python version `3.10.0-beta.3`. Building the `lxml` dependency requires an extra step, but besides this, there seem to be no issues with the upcoming version of Python.
**Changes that should not affect you:** (If they do, your code propably operates on the wrong level of abstraction.)
* The parameter `error_type` for the method `error_manager.add_crawl_delay` is no longer optional.
* The method `filemaster_labels_by_url` was only useful for testing. For this reason it has been removed from `exoskeleton` into the automatic tests.
* The method `update_host_statistics` is now private and accessed by aliases for the different cases.