title: Change in structure of graph after update to TensorFlow 0.11
body: <p>Today, I updated from TensorFlow 0.10 to TensorFlow 0.11. Just to check that the update was successful, I decided to run a MNIST tutorial that I know works fine. </p>
  
  <p>The program did run correctly with TensorFlow 0.11, but I noticed a major change in the way the computational graph looks like. This is how it was <a href="https://i.stack.imgur.com/OfaQx.png" rel="nofollow noreferrer">before</a> the update, and this is how it appears <a href="https://i.stack.imgur.com/5SnW0.png" rel="nofollow noreferrer">now</a>. In the latter picture, I have added a red rectangle to focus attention on the additional nodes. </p>
  
  <p><strong>Does anyone know why this change occurs, and how I can make the graph look reasonable again?</strong></p>
  
  <p>Perhaps the following snippet of code will be helpful. It corresponds to the part of the graph that changed appearance. </p>
  
  <pre><code># Cost function 
  cross_entropy = tf.nn.softmax_cross_entropy_with_logits(logits=y_unscal,
                                                      labels=y_plh)
  cost = tf.reduce_mean(cross_entropy)
  
  # Training op
  optimiser = tf.train.AdamOptimizer(learning_rate=1e-4).minimize(cost)
  </code></pre>
  
  <p>Thanks a lot in advance!</p>