Update what's new in tutorials for 2.6 release (#3269)

* Update what's new in tutorials

index.rst

@@ -3,13 +3,12 @@ Welcome to PyTorch Tutorials
 
 **What's new in PyTorch tutorials?**
 
-* `Compiled Autograd: Capturing a larger backward graph for torch.compile <https://pytorch.org/tutorials/intermediate/compiled_autograd_tutorial>`__
-* `Reducing torch.compile cold start compilation time with regional compilation <https://pytorch.org/tutorials/recipes/regional_compilation.html>`__
-* `Introduction to TorchRec <https://pytorch.org/tutorials/intermediate/torchrec_intro_tutorial.html>`__
-* `(prototype) Flight Recorder for Debugging Stuck Jobs <https://pytorch.org/tutorials/prototype/flight_recorder_tutorial.html>`__
-* `(prototype) How to use TorchInductor on Windows CPU <https://pytorch.org/tutorials/prototype/inductor_windows_cpu.html>`__
-* `(prototype) Using Max-Autotune Compilation on CPU for Better Performance <https://pytorch.org/tutorials/prototype/max_autotune_on_CPU_tutorial.html>`__
-* `(prototype) Autoloading Out-of-Tree Extension <https://pytorch.org/tutorials/prototype/python_extension_autoload.html>`__
+* `Dynamic Compilation Control with torch.compiler.set_stance <https://pytorch.org/tutorials/recipes/torch_compiler_set_stance_tutorial.html>`__
+* `Accelerating PyTorch Transformers by replacing nn.Transformer with Nested Tensors and torch.compile() <https://pytorch.org/tutorials/intermediate/transformer_building_blocks.html>`__
+* `Understanding the torch.export Flow and Solutions to Common Challenges <https://pytorch.org/tutorials/recipes/torch_export_challenges_solutions.html>`__
+* Updated `torch.export Tutorial <https://pytorch.org/tutorials/intermediate/torch_export_tutorial.html#constraints-dynamic-shapes>`__ with automatic dynamic shapes ``Dim.AUTO``
+* Updated `torch.export AOTInductor Tutorial for Python runtime <https://pytorch.org/tutorials/recipes/torch_export_aoti_python.html>`__
+* Updated `Using User-Defined Triton Kernels with torch.compile <https://pytorch.org/tutorials/recipes/torch_compile_user_defined_triton_kernel_tutorial.html#composability>`__ with new ``torch.library.triton_op``
 
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