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- New rio-calc command (175).
- Added a file band shortcut to fillnodata() (271).
- Added fillnodata() to rio-calc functions (277).
- New approach to masking arrays on read that conforms more closely to GDAL's
RFC 15 (282, 284, 285).
- New read_masks() method (284).
- Deprecation of read_mask() and read_band (284).
- New affine transform factory functions from_origin(), from_bounds() (287).
- Improve correctness of indexing and rio-merge logic (288, 290).