diff options
Diffstat (limited to 'doc/release/1.4.0-notes.rst')
| -rw-r--r-- | doc/release/1.4.0-notes.rst | 42 |
1 files changed, 39 insertions, 3 deletions
diff --git a/doc/release/1.4.0-notes.rst b/doc/release/1.4.0-notes.rst index 6aeff710c..00cfd9085 100644 --- a/doc/release/1.4.0-notes.rst +++ b/doc/release/1.4.0-notes.rst @@ -10,11 +10,45 @@ Highlights New features ============ +Automatic detection of forward incompatibilities +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Previously, if an extension was built against a version N of NumPy, and used on +a system with NumPy M < N, the import_array was successfull, which could cause +crashes because the version M does not have a function in N. Starting from +NumPy 1.4.0, this will cause a failure in import_array, so the error will be +catched early on. + +New C API +~~~~~~~~~ + +The following C functions have been added to the C API: + + #. PyArray_GetNDArrayCFeatureVersion: return the *API* version of the + loaded numpy. + #. PyArray_Correlate2 - like PyArray_Correlate, but implements the usual + definition of correlation. Inputs are not swapped, and conjugate is + taken for complex arrays. + #. PyArray_NeighborhoodIterNew - a new iterator to iterate over a + neighborhood of a point, with automatic boundaries handling. + New ufuncs ~~~~~~~~~~ -#. copysign - return the value of the first argument with the sign copied from - the second argument. +The following ufuncs have been added to the C API: + + #. copysign - return the value of the first argument with the sign copied + from the second argument. + +Deprecations +============ + +The following functions are deprecated: + + #. correlate: it takes a new keyword argument old_behavior. When True (the + default), it returns the same result as before. When False, compute the + conventional correlation, and take the conjugate for complex arrays. The + old behavior will be removed in NumPy 1.5 Internal changes ================ @@ -23,7 +57,8 @@ split multiarray and umath ~~~~~~~~~~~~~~~~~~~~~~~~~~ The source code of multiarray and umath has been split into separate logic -units. This should make the source code more amenable for newcomers. +compilation units. This should make the source code more amenable for +newcomers. Separate compilation ~~~~~~~~~~~~~~~~~~~~ @@ -38,4 +73,5 @@ Separate core math library ~~~~~~~~~~~~~~~~~~~~~~~~~~ New functions which have been added: + * npy_copysign |