[DOC] RAPIDS 22.04 Release Blog Outline

[caryr35]

Provide bullet point list of major user facing changes to Sophie Watson by the end of **burn down**

[harrism]

@caryr35 The most significant change in this release is using scikit-build for the RMM Python API (Cython) build, replacing the old setup.py process. This is a significant improvement to RMM, but may not impact end users much, so may not be worth including in the release blog. Everything else in this release is fairly small.

• Improvement: PR Use scikit-build for the build process #976 Use scikit-build for the build process. This enables reusing a lot of existing CMake machinery for the C++ build for Cython.
• Improvement: Use CUDA 11.2+ features via dlopen #990 Use CUDA 11.2+ features via DLOpen. This enables RMM to be compiled with CUDA 11.2+ and used with CUDA 11.0 or 11.1
• Bug fix: Disable opportunistic reuse in async mr when cuda driver < 11.5 #993 Disable opportunistic reuse in cuda_async_memory_resource on CUDA < 11.5 to work around a CUDA driver bug.
• Improvement: Log allocation failures #988 Log allocation failures
• Improvement: Add device_buffer::ssize() and device_uvector::ssize() #966 Add device_buffer::ssize() and device_uvector::ssize() (signed size accessors)

Everything else is even more minor.

[harrism]

@caryr35 I will leave it up to you to decide what from above to use in the blog, if anything. Please close this issue when ready.

[harrism]

@caryr35 I assigned you because I believe I've fulfilled the request. See #987 (comment)

[caryr35]

updates added for blog. Closing issues.