diff --git a/.changeset/odd-lemons-occur.md b/.changeset/odd-lemons-occur.md
index 2b536bf012..695ed3c80c 100644
--- a/.changeset/odd-lemons-occur.md
+++ b/.changeset/odd-lemons-occur.md
@@ -2,4 +2,4 @@
 '@backstage/frontend-plugin-api': minor
 ---
 
-new deprecation warning will be thrown by the framework `pluginId` should have letters, digits, and dashes, starting with a letter
+Plugin IDs that do not match the standard format are deprecated (letters, digits, and dashes only, starting with a letter). Plugin IDs that do no match this format will be rejected in a future release.
diff --git a/.changeset/slow-numbers-study.md b/.changeset/slow-numbers-study.md
index e53009bffa..fe7203e169 100644
--- a/.changeset/slow-numbers-study.md
+++ b/.changeset/slow-numbers-study.md
@@ -2,4 +2,6 @@
 '@backstage/backend-plugin-api': minor
 ---
 
-The backend will now throw an error if a plugin or a module doesn't have a valid ID
+Plugin IDs that do not match the standard format are deprecated (letters, digits, and dashes only, starting with a letter). Plugin IDs that do no match this format will be rejected in a future release.
+
+In addition, plugin IDs that don't match the legacy pattern that also allows underscores, with be rejected.