Update NEWS.txt with modif since 0.6rc2

NEWS.txt

@@ -4,6 +4,131 @@
 Release Notes
 =============
 
+Theano in the development version since 0.6rc2
+==============================================
+
+up to merged PR gh-1220
+
+Highlights:
+ * Speed-ups.
+ * Crash fixes.
+ * A few small interface changes.
+ * GPU memory leak fix.
+ * A few corner cases fix without incidence.
+ * More Theano determinism
+ * tensor.{dot,tensordot} more complete/faster/more GPU friendly.
+ * tensor.tensordot now support Rop/Lop
+ * tensor.dot support n-dimensional inputs as NumPy
+ * To support more NumPy syntax:
+     * Add theano.tensor.take()
+     * Add a_tensor_variable.{sort,dot,std,argmin,argmax,argsort,clip,conj,conjugate,repeat,round,trace,real,imag,take}
+
+Commiters for this rc2 only:
+
+Bug fix:
+ * Fix memory leak on the GPU in some corner with the Theano flags `allow_gc=False`. (Frederic B., reported by Jonas Gehring)
+ * Fix copy of random state between graph. (Guillaume D.)
+   http://deeplearning.net/software/theano/tutorial/examples.html#copying-random-state-between-theano-graphs
+ * Fix wrong dtype in sandbox.linalg.ExtractDiag with shape of 0. (Frederic B., reported by abalkin)
+ * Correctly support array with more then 2*10e32 element in AdvancedSubtensor1. (Abalkin)
+ * Fix wrong broadcast dimensions of output of Repeat op. (Abalkin)
+   We where using the inputs broadcasting pattern in some cases when we shouldn't.
+ * Fix theano.sandbox.linalg.eigh grad that didn't always returned the right dtype. (Frederic B., Olivier D.)
+
+New Features:
+ * More Theano determinism (Ian G., Olivier D., Pascal L.)
+     * Add and use a new class OrderedSet.
+     * Modify theano.grad to be determinist.
+     * Warn when using a dict as the updates argument to theano.compile.function, since this makes the returned function non-deterministic.
+     * The Updates class was not appropriate for representing updates because it is non-deterministic; replaced it with the OrderedUpdates class.
+ * Implemented GpuContiguous.grad. (Ian G.)
+ * tensor.tensordot now support Rop/Lop (Jeremiah Lowin)
+   This remove the class TensorDot and TensorDotGrad. It is the Dot/Elemwise ops that are used.
+ * tensor.dot support n-dimensional inputs as NumPy (Jeremiah Lowin)
+   Work on the GPU too.
+ * The Theano flag `nvcc.flags` now accept `-ftz=true`, `--prec-div=false` and `--prec=sqrt=false` as value. (Frederic B.)
+   To enable all of them, use the Theano flag `nvcc.flags=--use_fast_math`.
+ * New op theano.sparse.ConstructSparseFromList (Rami Al-Rfou'  Vivek Kulkarni)
+ * Make Theano work with Anaconda on Windows. (Pascal L.)
+ * Add tensor_var.diagonal and theano.tensor.{diag,diagonal}. (abalkin)
+ * AdvencedSubtensor1 can now have a sparse gradient. (Rami Al-Rfou', Vivek Kulkarni)
+
+Interface Deprecation (a warning is printed):
+ * theano.misc.strutil.renderString -> render_string (Ian G.)
+ * Will get warning when using dictionary at some place as this make Theano non-deterministic.
+
+Interface Change:
+ * Raise an error when theano.shared called with a theano variable. (Frederic B.)
+ * Don't print warning for bug before Theano 0.5 by default. (Frederic B.)
+ * Theano functions now always have a field name, default to None. (Frederic B.)
+ * Theano function fct.fgraph have a copy of the Theano function name field. (Ian G.)
+   This is needed to all the fgraph to know it.
+ * In the grad method, if it were asked to raise an error if there is no path between the variables, we didn't always returned an error. (Ian G.)
+   We returned the mathematical right answer 0.
+ * get_constant_value() renamed get_scalar_constant_value() and raise a new exception tensor.basic.NotScalarConstantError. (Ian G.)
+ * theano.function raise an error when triing to replace inputs with the given paramter. (Olivier D.)
+   This was doing nothing, the error message tell what the user probably want to do.
+
+New Interface (reuse existing functionality):
+ * tensor_var.sort() as a shortcut for theano.tensor.sort. (Jeremiah Lowin)
+   We where already doing this for argsort.
+ * Add theano.tensor.take() and a_tensor_var.take() to support NumPy syntax. (abalkin) 
+ * Add a_tensor_variable.{dot,std,argmin,argmax,argsort,clip,conj,conjugate,repeat,round,trace,real,imag}. (abalkin)
+
+New debug feature:
+ * DebugMode print more info when there is an error. (Frederic B.)
+ * Better profiling of test time with `theano-nose --time-profile`. (Frederic B.)
+ * Detection of infinite loop with global optimizer. (Pascal L.)
+ * DebugMode.check_preallocated_output now also work on Theano function output. (Pascal L.)
+
+Speed-ups:
+ * c_code for SpecifyShape op. (Frederic B.)
+ * cross-entropy optimization now work when specify_shape is used. (Pascal L.)
+ * The Scan optimization ScanSaveMem and PushOutDot1 applied more frequently. (Razvan P, reported Abalkin)
+   A skipped optimization warning was printed.
+ * dot(vector, vector) now faster with some BLAS implementation. (Eric Hunsberger)
+   OpenBLAS and other didn't called {s,d}dot internally when we called {s,g}gemv.
+   MKL was doing this.
+ * Compilation speed up: Take the compiledir lock only for op that generate c_code. (Frederic B)
+ * More scan optimization (Razvan P.)
+     * Opt to make RNN fast in Theano.
+     * Optimize some case of dot, by moving them outside of Scan.
+     * Move some sequences outside of scan too.
+     * Merge more scan inputs, mostly byproduct of other Scan optimizations.
+ * c_code for theano.sparse.AddSD. (Rami Al-Rfou',  Vivek Kulkarni)
+
+Crash Fixes:
+ * Fix crash about dimshuffle. (abalkin)
+ * Fix crash at compilation. (Olivier D.)
+ * Fix openmp detection. (Pascal L.)
+   Resulted in a crash with EPD on Windows.
+ * Fix for new BLAS interface in SciPy. (Olivier D.)
+   Fix crash with some development version of SciPy.
+ * GpuSum work with bigger shape when summing on the first dim on 3d tensor. (Frederic B., reported Chris Currivan)
+ * Windows compilation crash fix. (Frederic B.)
+ * Make CrossentropySoftmax1HotWithBiasDx and CrossentropySoftmaxArgmax1HotWithBias support uint* dtype. (Frederic B., reported by Mark Fenner)
+ * Fix GpuSoftmax and GpuSoftmaxWithBias crash on GTX285. (Frederic B.)
+ * Fix crash due to a race condition when importing theano. (Ian G.)
+ * Fix crash from path problem with `theano-nose --batch`. (Abalkin) 
+ * Fix crash with tensor.roll(Var, iscalar). (Frederic B., reported by Jeremiah Lowin)
+ * Fix compilation crash with llvm on Mac. (Abalkin)
+ * Fix the grad of Scan that told wrongly that there is no connection between cost and parameters. (Razvan P.)
+ * The infer shape mechanism now force that broadcasted dimensions have a shape know to be equivalent to one during compilation.
+   Sometimes, we where not able knowing this before run time and resulted in crash. (Frederic B.)
+ * Fix compilation problems on GPU on Windows. (Frederic B.)
+
+Theoretical bugfix (bug that won't happen with current Theano code, but if you messed with the internal, could have affected you):
+ * GpuContiguous now check the preallocated outputs strides before using it. (Pascal L.)
+
+Others:
+ * Fix race condition when determining if g++ is available. (Abalkin)
+ * Documentation improvements. (Many people including David W-F, abalkin, Amir Elaguizy, Olivier D., Frederic B.)
+ * The current GPU back-end have a new function CudaNdarray_prep_output(CudaNdarray ** arr, int nd, const int * dims) (Ian G)
+
+=============
+Release Notes
+=============
+
 Theano 0.6rc2 (November 21th, 2012)
 ===================================