diff --git a/teps/0090-matrix.md b/teps/0090-matrix.md
index 4b5c9efde..d44f1b6ea 100644
--- a/teps/0090-matrix.md
+++ b/teps/0090-matrix.md
@@ -2,7 +2,7 @@
 status: implementable
 title: Matrix
 creation-date: '2021-10-13'
-last-updated: '2022-06-09'
+last-updated: '2022-06-22'
 authors:
 - '@jerop'
 - '@pritidesai'
@@ -1348,8 +1348,10 @@ status:
       pipelineTaskName: foo
 ```
 
-The `ChildReferences` will be populated for matrixed `PipelineTasks` regardless of the embedded status flags
-because that is the API behavior we're migrating to.
+For `ChildReferences` to be populated, the `embedded-status` must be set to `"minimal"`. Thus, any `Pipeline` with a
+`PipelineTask` that has a `Matrix` will require that minimal embedded status is enabled during the migration until it
+becomes the only supported status. This requirement also makes the behavior clearer to users - auto-adding the minimal
+status when users have not enabled it makes the user experience opaque and surprising.
 
 ## Design Evaluation
 
diff --git a/teps/README.md b/teps/README.md
index ae67c9a91..2b669fd7b 100644
--- a/teps/README.md
+++ b/teps/README.md
@@ -234,7 +234,7 @@ This is the complete list of Tekton teps:
 |[TEP-0086](0086-changing-the-way-result-parameters-are-stored.md) | Changing the way result parameters are stored | proposed | 2022-04-07 |
 |[TEP-0088](0088-result-summaries.md) | Tekton Results - Record Summaries | proposed | 2021-10-01 |
 |[TEP-0089](0089-nonfalsifiable-provenance-support.md) | Non-falsifiable provenance support | implementable | 2022-01-18 |
-|[TEP-0090](0090-matrix.md) | Matrix | implementable | 2022-06-09 |
+|[TEP-0090](0090-matrix.md) | Matrix | implementable | 2022-06-22 |
 |[TEP-0092](0092-scheduling-timeout.md) | Scheduling Timeout | implementable | 2022-04-11 |
 |[TEP-0094](0094-configuring-resources-at-runtime.md) | Configuring Resources at Runtime | implemented | 2022-03-11 |
 |[TEP-0095](0095-common-repository-configuration.md) | Common Repository Configuration | proposed | 2021-11-29 |