diff --git a/source/core/timeseries/timeseries-limitations.txt b/source/core/timeseries/timeseries-limitations.txt
index 6043661232a..4e8c5186134 100644
--- a/source/core/timeseries/timeseries-limitations.txt
+++ b/source/core/timeseries/timeseries-limitations.txt
@@ -44,7 +44,11 @@ specified as the ``timeField`` and the ``metaField``. If the field value
 for the ``metaField`` field is a document, you can also create secondary
 indexes on fields inside that document.
 
-The ``metaField`` doesn't support the following index types:
+In MongoDB 5.1, the ``metaField`` doesn't support :doc:`text
+</core/index-text>` indexes.
+
+In MongoDB 5.0, the ``metaField`` doesn't support the following index
+types:
 
 - :doc:`2d </core/2d>`
 - :doc:`2dsphere </core/2dsphere>`
diff --git a/source/release-notes/5.1.txt b/source/release-notes/5.1.txt
index 174421b6256..4fb46b4ccf5 100644
--- a/source/release-notes/5.1.txt
+++ b/source/release-notes/5.1.txt
@@ -80,6 +80,13 @@ If the new parameter
   the :ref:`query explain plan output
   <explain-results-enhanced-execution>`.
 
+Geo Indexing for Time Series collections
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+Starting in MongoDB 5.1, you can use :ref:`geo indexes
+<timeseries-limitations-secondary-indexes>` on the ``metaField`` of time
+series collections.
+
 Schema Validation Errors Contain Description Field
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~