# NumPy 1.11.3 Release Notes

Numpy 1.11.3 fixes a bug that leads to file corruption when very large files opened in append mode are used in `ndarray.tofile`. It supports Python versions 2.6 - 2.7 and 3.2 - 3.5. Wheels for Linux, Windows, and OS X can be found on PyPI.

## Contributors to maintenance/1.11.3

A total of 2 people contributed to this release. People with a “+” by their names contributed a patch for the first time.

- Charles Harris

- Pavel Potocek +

## Pull Requests Merged

- #8341: BUG: Fix ndarray.tofile large file corruption in append mode.

- #8346: TST: Fix tests in PR #8341 for NumPy 1.11.x