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CHANGELOG.md

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cuDF 0.4.0 (05 Dec 2018)

New Features

  • PR #398 add pandas-compatible DataFrame.shape() and Series.shape()
  • PR #394 New documentation feature "10 Minutes to cuDF"
  • PR #361 CSV Reader: Add support for strings with delimiters

Improvements

  • PR #436 Improvements for type_dispatcher and wrapper structs
  • PR #429 Add CHANGELOG.md (this file)
  • PR #266 use faster CUDA-accelerated DataFrame column/Series concatenation.
  • PR #379 new C++ type_dispatcher reduces code complexity in supporting many data types.
  • PR #349 Improve performance for creating columns from memoryview objects
  • PR #445 Update reductions to use type_dispatcher. Adds integer types support to sum_of_squares.
  • PR #448 Improve installation instructions in README.md
  • PR #456 Change default CMake build to Release, and added option for disabling compilation of tests

Bug Fixes

  • PR #444 Fix csv_test CUDA too many resources requested fail.
  • PR #396 added missing output buffer in validity tests for groupbys.
  • PR #408 Dockerfile updates for source reorganization
  • PR #437 Add cffi to Dockerfile conda env, fixes "cannot import name 'librmm'"
  • PR #417 Fix map_test failure with CUDA 10
  • PR #414 Fix CMake installation include file paths
  • PR #418 Properly cast string dtypes to programmatic dtypes when instantiating columns
  • PR #427 Fix and tests for Concatenation illegal memory access with nulls

cuDF 0.3.0 (23 Nov 2018)

New Features

  • PR #336 CSV Reader string support

Improvements

  • PR #354 source code refactored for better organization. CMake build system overhaul. Beginning of transition to Cython bindings.
  • PR #290 Add support for typecasting to/from datetime dtype
  • PR #323 Add handling pyarrow boolean arrays in input/out, add tests
  • PR #325 GDF_VALIDITY_UNSUPPORTED now returned for algorithms that don't support non-empty valid bitmasks
  • PR #381 Faster InputTooLarge Join test completes in ms rather than minutes.
  • PR #373 .gitignore improvements
  • PR #367 Doc cleanup & examples for DataFrame methods
  • PR #333 Add Rapids Memory Manager documentation
  • PR #321 Rapids Memory Manager adds file/line location logging and convenience macros
  • PR #334 Implement DataFrame __copy__ and __deepcopy__
  • PR #271 Add NVTX ranges to pygdf
  • PR #311 Document system requirements for conda install

Bug Fixes

  • PR #337 Retain index on scale() function
  • PR #344 Fix test failure due to PyArrow 0.11 Boolean handling
  • PR #364 Remove noexcept from managed_allocator; CMakeLists fix for NVstrings
  • PR #357 Fix bug that made all series be considered booleans for indexing
  • PR #351 replace conda env configuration for developers
  • PRs #346 #360 Fix CSV reading of negative numbers
  • PR #342 Fix CMake to use conda-installed nvstrings
  • PR #341 Preserve categorical dtype after groupby aggregations
  • PR #315 ReadTheDocs build update to fix missing libcuda.so
  • PR #320 FIX out-of-bounds access error in reductions.cu
  • PR #319 Fix out-of-bounds memory access in libcudf count_valid_bits
  • PR #303 Fix printing empty dataframe

cuDF 0.2.0 and cuDF 0.1.0

These were initial releases of cuDF based on previously separate pyGDF and libGDF libraries.