Added
- Added warning to Training Step output ([7779](https://github.com/PyTorchLightning/pytorch-lightning/pull/7779))
Fixed
- Fixed LearningRateMonitor + BackboneFinetuning ([7835](https://github.com/PyTorchLightning/pytorch-lightning/pull/7835))
- Minor improvements to `apply_to_collection` and type signature of `log_dict` ([7851](https://github.com/PyTorchLightning/pytorch-lightning/pull/7851))
- Fixed docker versions ([7834](https://github.com/PyTorchLightning/pytorch-lightning/pull/7834))
- Fixed sharded training check for fp16 precision ([7825](https://github.com/PyTorchLightning/pytorch-lightning/pull/7825))
- Fixed support for torch Module type hints in LightningCLI ([7807](https://github.com/PyTorchLightning/pytorch-lightning/pull/7807))
Changed
- Move `training_output` validation to after `train_step_end` ([7868](https://github.com/PyTorchLightning/pytorch-lightning/pull/7868))
Contributors
Borda, justusschock, kandluis, mauvilsa, shuyingsunshine21, tchaton
*If we forgot someone due to not matching commit email with GitHub account, let us know :]*