Emilia,
There is not a ‘whats new’ for 1.4.3 as it is a bug fix release and should not have new features 
The new features in nbagg are all related to improved handling of gui events, in particular keyboard and scroll wheel events. The best way to get a feel for what nbagg can do is to read through the UAT notebook.
Tom
···
On Wed Feb 18 2015 at 11:45:57 AM Emilia Petrisor <emilia.petrisor@…287…> wrote:
Hi all,
I looked for a link where I could find out what’s new in
matplotlib 1.4.3, but there is no one.
Especially I’m interested in the new features of
nbagg backend. All I know is what I read in an email here, namely that The nbagg backend is looking great - some pretty swish new features.
Thanks,
Emilia
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