v0.3.0

This is the release notes of v0.3.0. See here for the complete list of solved issues and merged PRs.

This release note only covers the difference from v0.3.0rc1; for all highlights and changes, please refer to the release notes of the pre-releases:

alpha1
alpha2
beta1
beta2
rc1

Announcements

From v0.3.0 on, v0.3.x will be the last series that support Python 2 until release of v0.4.0.

Changes that break compatibility

• Operand now supports stages(#935), reduction operands as well as those operands whose tiled chunks contain map or reduce phases cannot be serialized between this and former versions.

New Features

• Tensor
  • Implements mt.histogram and mt.histogram_bin_edges (#914)
  • Add mt.partition support (#916)
  • Implements mt.{percentile, quantile, median} (#919)
  • Support Einstein summation convention (#925)
  • Add mt.fill_diagonal support (#931)
• DataFrame
  • Support creating DataFrame from dict whose values are tensors (#922)
  • Implements DataFrame.quantile and Series.quantile (#924)
  • Support DataFrame and Series count (#923)
  • Implement mean operator for DataFrame and Series (#927)
  • Add comparison operands for DataFrame (#929)
  • Support df.reset_index and series.reset_index (#933)

Enhancements

• Add public base class for entity data (#879)
• Merge operands representing multiple stages of one single operand (#935)

Bug fixes

• Fix sparse behavior for tensor.min and tensor.max (#936)

Tests

• Add TestExecutor that serde graph every time when executing to ensure all operands work well with serialize (#881)
• Fix possible failure of testIterativeTilingWithoutEtcd for Python 3 in CI (#906)
• Remove *_pb2.py to reduce chances of code conflict (#920)