* **Breaking change:** width and height specified in `--size` and `--size-px` are now swapped if they fit bbox better that way. Use `--norotate` to preserve old behaviour (that is, to force `WIDTH HEIGHT` order).
* You can specify 0 for one of the dimensions: first one is considered "long" side, the second is "short". E.g. for "portrait" bbox size "0 123" could become "123 200". `--norotate` option also applies to this. [10](https://github.com/Zverik/Nik4/issues/10)
* Added `--dpi`, a synonim for `--ppi`.
* Now allowing underscores in variable names.
* Streaming output to `-` (stdout) now works. [9](https://github.com/Zverik/Nik4/issues/9)