Theano: when was the filter_flip parameter for conv2d introduced? (TypeError: __init__() got an unexpected keyword argument 'filter_flip')
<p>When was the <code>filter_flip</code> parameter for <code>theano.tensor.nnet.conv2d()</code> introduced in Theano? (i.e., which is the minimum Theano version that supports it?)</p>

<p>My version (<code>0.7.0.dev-8d3a67b73fda49350d9944c9a24fc9660131861c</code>) doesn't have it:  </p>

<pre><code>File "/usr/local/lib/python2.7/dist-packages/theano/tensor/nnet/conv.py", line 146, in conv2d
    imshp=imshp, kshp=kshp, nkern=nkern, bsize=bsize, **kargs)
TypeError: __init__() got an unexpected keyword argument 'filter_flip'
</code></pre>

<p><a href="http://deeplearning.net/software/theano/NEWS.html" rel="nofollow">Theano's change log</a> doesn't mention <code>filter_flip</code>. The <a href="http://deeplearning.net/software/theano/library/tensor/nnet/conv.html#theano.tensor.nnet.conv2d" rel="nofollow">documentation for <code>theano.tensor.nnet.conv2d()</code></a> doesn't mention the minimum required version.</p>

<p>It appears in <a href="https://github.com/Theano/Theano/blob/rel-0.8.0/theano/tensor/nnet/__init__.py#L35" rel="nofollow">version 0.8.0</a>.</p>

<p>Note that in that release the implementation of <code>theano.tensor.nnet.conv2d()</code> found in <code>theano/tensor/nnet/conv.py</code> <a href="https://github.com/Theano/Theano/blob/rel-0.8.0/theano/tensor/nnet/conv.py#L43" rel="nofollow">becomes deprecated</a> and is replaced by the new implementation placed into <a href="https://github.com/Theano/Theano/blob/rel-0.8.0/theano/tensor/nnet/__init__.py#L35" rel="nofollow"><code>theano/tensor/nnet/__init__.py</code></a> and <a href="https://github.com/Theano/Theano/blob/rel-0.8.0/theano/tensor/nnet/abstract_conv.py#L115" rel="nofollow"><code>theano/tensor/nnet/abstract_conv.py</code></a>.</p>

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