changelog updates re path separator handling

changelog.md

@@ -1,6 +1,18 @@
 ## 8.0
 
 - Only support node v12 and higher
+- `\` is now **only** used as an escape character, and never as a
+  path separator in glob patterns, so that Windows users have a
+  way to match against filenames containing literal glob pattern
+  characters.
+- Glob pattern paths **must** use forward-slashes as path
+  separators, since `\` is an escape character to match literal
+  glob pattern characters.
+- (8.0.2) `cwd` and `root` will always be automatically coerced
+  to use `/` as path separators on Windows, as they cannot
+  contain glob patterns anyway, and are often supplied by
+  `path.resolve()` and other methods that will use `\` path
+  separators by default.
 
 ## 7.2