Add 1.17.2 changelog.

Author: alliepiper

CHANGELOG.md

@@ -1,3 +1,13 @@
+# CUB 1.17.2
+
+## Summary
+
+CUB 1.17.2 is a minor bugfix release.
+
+- NVIDIA/cub#547: Introduce an annotated inline namespace to prevent issues with
+  collisions and mismatched kernel configurations across libraries. The new
+  namespace encodes the CUB version and target SM architectures.
+
 # CUB 1.17.1
 
 ## Summary

README.md

@@ -85,7 +85,6 @@ compilers. Unsupported versions may emit deprecation warnings, which can be
 silenced by defining CUB_IGNORE_DEPRECATED_COMPILER during compilation.
 
 - NVCC 11.0+
-- NVC++ 20.9+
 - GCC 5+
 - Clang 7+
 - MSVC 2019+ (19.20/16.0/14.20)
@@ -100,6 +99,7 @@ See the [changelog](CHANGELOG.md) for details about specific releases.
 
 | CUB Release               | Included In                             |
 | ------------------------- | --------------------------------------- |
+| 1.17.2                    | TBD                                     |
 | 1.17.1                    | TBD                                     |
 | 1.17.0                    | TBD                                     |
 | 1.16.0                    | TBD                                     |