PyTorch 2.11.0 Release

# PyTorch 2.11.0 Release Notes - [Highlights](#highlights) - [Backwards Incompatible Changes](#backwards-incompatible-changes) - [Deprecations](#deprecations) - [New Features](#new-features) - [Improvements](#improvements) - [Bug fixes](#bug-fixes) - [Performance](#performance) - [Documentation](#documentation) - [Developers](#developers) - [Security](#security) # Highlights Added Support for Differentiable Collectives for Distributed Training FlexAttention now has a FlashAttention-4 backend on Hopper and Blackwell GPUs MPS (Apple Silicon) Comprehensive Operator Expansion Added RNN/LSTM GPU...