# Changes in 0.99

-   pylab no longer provides a load and save function. These are
    available in matplotlib.mlab, or you can use numpy.loadtxt and
    numpy.savetxt for text files, or np.save and np.load for binary
    NumPy arrays.
-   User-generated colormaps can now be added to the set recognized by
    `matplotlib.cm.get_cmap`. Colormaps can be made the default and
    applied to the current image using
    `matplotlib.pyplot.set_cmap`{.interpreted-text role="func"}.
-   changed use_mrecords default to False in mlab.csv2rec since this is
    partially broken
-   Axes instances no longer have a \"frame\" attribute. Instead, use
    the new \"spines\" attribute. Spines is a dictionary where the keys
    are the names of the spines (e.g., \'left\',\'right\' and so on) and
    the values are the artists that draw the spines. For normal
    (rectilinear) axes, these artists are Line2D instances. For other
    axes (such as polar axes), these artists may be Patch instances.
-   Polar plots no longer accept a resolution kwarg. Instead, each Path
    must specify its own number of interpolation steps. This is unlikely
    to be a user-visible change \-- if interpolation of data is
    required, that should be done before passing it to Matplotlib.