This is the release note of v4.1.0. See here for the complete list of solved issues and merged PRs.

Enhancements

• Add NumPy-compatibility constants (#1205, thanks @keisuke-umezawa!)
• Support complex constants and functions in fuse (#1207)
• Free pooled memory when cufftMakePlan1d cannot allocate memory (#1236)
• Rename CuFftError to CuFFTError (#1244)

Bug Fixes

• Fix regex in einsum to match empty input subscript (#1186)
• Fix memory leak: mempool tried to find out-of-bounds bin when freeing chunk (#1189)
• Fix scalar casting rule to support Windows (#1194)
• Fix conversion from float16 to complex (#1252)

Installation

• Separate NVTX module for better Windows support (#1237)

Tests

• Separate tests for cupy.power against complex dtype (#1187)
• Fix example test to pass on Windows (#1188)
• Fix real and imag test for bool to pass on Windows (#1192)
• Skip int8.max test on Windows due to NumPy bug (#1193)
• Fix hacking version (#1229)
• Fix 32-bit boundary test to support Windows (#1255)

Others

• Fix .gitignore to exclude .pyd files (#1227)