NumPy 1.15.2 released

Charles R Harris charlesr.harris at
Sun Sep 23 08:59:57 EDT 2018

Hi All,

On behalf of the NumPy team, I am pleased to announce the release of NumPy
1.15.2. This is a bug fix release for bugs and regressions reported
following the 1.15.2 release. The fixes are:

   - the matrix PendingDeprecationWarning is now suppressed in pytest 3.8,
   - the new cached allocations machinery has been fixed to be thread safe,
   - the boolean indexing of subclasses now works correctly,
   - a small memory leak in PyArray_AdaptFlexibleDType has been fixed.

The Python versions supported by this release are 2.7, 3.4-3.7. The wheels
are linked with OpenBLAS v0.3.0, which should fix some of the linalg
problems reported for NumPy 1.14. Wheels for this release can be downloaded
from PyPI <>, source archives are
available from Github <>

Compatibility Note

The NumPy 1.15.x OS X wheels released on PyPI no longer contain 32-bit
binaries.  That will also be the case in future releases. See
`#11625 <>`__ for the related
discussion.  Those needing 32-bit support should look elsewhere or build
from source.


A total of 4 people contributed to this release.  People with a "+" by their
names contributed a patch for the first time.

* Charles Harris
* Julian Taylor
* Marten van Kerkwijk
* Matti Picus

Pull requests merged

A total of 4 pull requests were merged for this release.

* `#11902 <>`__: BUG: Fix matrix
PendingDeprecationWarning suppression for pytest...
* `#11981 <>`__: BUG: fix cached
allocations without the GIL for 1.15.x
* `#11982 <>`__: BUG: fix refcount
leak in PyArray_AdaptFlexibleDType
* `#11992 <>`__: BUG: Ensure
boolean indexing of subclasses sets base correctly.


Charles Harris

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