This is the release note of v6.0.0b1. See here for the complete list of solved issues and merged PRs.

New Features

• Support comparison operators for complex numbers (#1636, thanks @themightyoarfish!)
• Implement RNN high level API (#1659)
• Support array conversion from numba to cupy w/o memcpy (#1760)
• Add ndarray.item method (#1815)

Enhancements

• Check if ElementwiseKernel doesn't broadcast mutable in_params (#1601)
• Support ndim checking in Fusion (#1713)
• Remove code for CUDA 7.0 / 7.5 and cuDNN v4 (#1733)
• Fix DropoutStates interface to avoid using cuDNN handle (#1734)
• Add cuDNN pooling interface (#1735)
• Add cuDNN softmax interface (#1736)
• Implement cuDNN batch normalization interface (#1737)
• Assume CUDA v8 in cuSPARSE/cuSOLVER check (#1780)
• Rename _make_rnn_workspace function (#1838)
• Make a helper function to get the number of layers in RNN (#1839)

Bug Fixes

• Fix invalid memory access during reduction whose output is large to exceed 32-bit (#1774)
• Fix incorrect cast in element-wise op for float array and complex scalar (#1795)
• Fix error in typecast from fp16 to complex dtype in cupy.fuse (#1799)

Documentation

• Improve comparison table (#1622)
• Add requirements to build documentation on RTD (#1751)
• Add policy on compatibility of random sampling (#1754)
• Fix description of CUDA_PATH environment variable (#1775)
• Indicate alias in comparison table (#1791)
• Add code of conduct (#1793)
• Fix English in ndarray.nbytes documentation (#1797)
• Add note about cupy.random.{get_set}_state (#1805)
• Add docs about conversion from/to cupy ndarray and sparse (#1806)
• Enable intersphinx to cupyx module (#1809, thanks @grafi-tt!)
• Add 10.0 to supported CUDA versions (#1824)
• Add v7.3 and v7.4 to supported cuDNN versions (#1823)
• Fix bad source hyperlinks (#1835)

Tests

• Fix PendingDeprecationWarning when running test against NumPy 1.15 (#1755)
• Support skipping tests decorated by condition or parametrize (#1757)
• Fix test failure of binomial distribution in Windows (#1758)
• Fix userspace kernel test failure in Windows (#1759)

Other

• Add issue template (#1808)