* Minor bugfixes
* Executable name changed from udocker.py to udocker
* Added support for login into docker repositories
* Added support for private repositories
* Added support for listing of v2 repositories catalog
* Added checksum verification for sha256 layers
* Improved download handling for v1 and v2 repositories
* Improved installation tarball structure
* Insecure flag fixed
* Address seccomp change introduced on kernels >= 4.8.0
* Utilities for packaging
* Improved verbose levels, messaging and output
- closes: 24, 23
* Fully implement support for registry selection --registry parameter
- closes: 29
* Provide support for private repositories e.g. gitlab registries
- closes: 30
* Provide --insecure command line parameter for SSL requests
- closes: 31