diff --git a/USAGE.md b/USAGE.md
index 1a054fd58b..1d01f8f4f9 100644
--- a/USAGE.md
+++ b/USAGE.md
@@ -762,6 +762,11 @@ some common uses of relationships.
 
 #### Relationships microlibrary
 
+NOTE (Oct 4, 2022): We are currently updating the microlibrary for the upcoming v12 release which includes slightly modified STIX Campaign Objects.
+The modifications to the Campaign STIX object will be mentioned at the top of this document in the The ATT&CK data model section.
+The examples will be backwards-compatible.
+You can follow the progress of this at [issue #23](https://github.com/mitre/cti/issues/203) and the [accompanying branch](https://github.com/mitre/cti/blob/203-update-relationships-microlibrary/USAGE.md#relationships-microlibrary).
+
 The following microlibrary can be used to build a lookup table of stixID to related objects and relationships.
 The argument to each accessor function is a STIX2 MemoryStore to build the relationship mappings from.