* Set GCS credentials to `None` if invalid service account credentials are provided [ClearML GitHub issue #840](https://github.com/allegroai/clearml/issues/840)
* Fix a sync issue when loading deferred configuration
* Support `/` delimited project names for on-the-fly nested project creation in UI operations [ClearML Server GitHub issue #151](https://github.com/allegroai/clearml-server/issues/151)
* Add keyboard shortcut iteration navigation in full screen view of debug samples and plots
* Add "Don't show again" option for UI notification when archiving tasks [ClearML Server GitHub issue #149](https://github.com/allegroai/clearml-server/issues/149)
* Add task reset/delete modal automatically closes when no additional information is provided
* Add parent project name in UI dataset and pipeline cards
* Move UI plot legends to bottom of plot
**Bug Fixes**
* Fix task artifacts not deleted from file server when task deleted via UI [ClearML GitHub issue #801](https://github.com/allegroai/clearml/issues/801)
* Fix multiple selection with `Shift` key in UI experiment table not working [ClearML Server GitHub issue #139](https://github.com/allegroai/clearml-server/issues/139)
* Fix disappearing user filter in UI "All Experiments" table [ClearML Web GitHub issue #33](https://github.com/allegroai/clearml-web/issues/33)
* Fix UI Dashboard missing My Work / Team Work filter
* Fix navigating to Scalars and Plots tabs in UI experiment comparison freezes browser
* Fix project stats do not exclude dataset and annotation tasks
* Fix subproject with no experiments displayed as "undefined" in parent project page
* 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