PR helm#433 will define backwards compatibility for new chart-defined plugin types

Signed-off-by: Scott Rigby <scott@r6by.com>

Author: scottrigby

hips/hip-9999.md

@@ -196,9 +196,7 @@ How a plugin implements these is up to the plugin author.
 
 ## Backwards Compatibility
 
-- Charts without plugins continue to work unchanged
-- Charts with `values/v1` plugins fail gracefully with installation instructions
-- No changes to existing chart APIs
+- [Chart-defined plugins HIP](https://github.com/helm/community/pull/433) defines backwards compatibility for new chart-defined plugin types.
 
 ## Security Implications