* Add tarfile member sanitization to `extractall()`[ClearML GitHub PR #803](https://github.com/allegroai/clearml/pull/803)
* Add `Task.delete_artifacts()` with `raise_on_errors` argument [ClearML GitHub issue #805](https://github.com/allegroai/clearml/issues/805)
* Add CI/CD example [ClearML GitHub PR #815](https://github.com/allegroai/clearml/pull/815)
* Limit number of `_serialize` requests when adding list of links with `add_external_files()` [ClearML GitHub issue #813](https://github.com/allegroai/clearml/issues/813)
* Add support for connecting Enum values as parameters
* Improve Colab integration (store entire colab, not history)
* Add `clearml.browser_login` to authenticate browser online sessions such as Colab, Jupyter Notebooks etc.
* Remove `import_bind` from stack trace of import errors
* Add `sdk.development.worker.report_event_flush_threshold` configuration option to control the number of events to trigger a report
* Return stub object from `Task.init()` if no `clearml.conf` file is found
* Improve manual model uploading example
* Remove deprecated demo server
**Bug Fixes**
* Fix passing `compression=ZIP_STORED` (or 0) to `Dataset.upload()` uses `ZIP_DEFLATED` and overrides the user-supplied