diff --git a/modules/release-notes/partials/docs-server-7.6.0-release-note.adoc b/modules/release-notes/partials/docs-server-7.6.0-release-note.adoc
index 9d646721d9..95d4a6f547 100644
--- a/modules/release-notes/partials/docs-server-7.6.0-release-note.adoc
+++ b/modules/release-notes/partials/docs-server-7.6.0-release-note.adoc
@@ -245,6 +245,16 @@ For more information on the auto-failover settings, see the documentation.
 | NA
 |===
 
+==== Index Service
+
+[#table-known-issues-760-index-service, cols="10,40,40"]
+|===
+|Issue | Description | Workaround
+
+include::partial$index-upgrade-issue.adoc[]
+
+|===
+
 ==== Search Service
 [#table-known-issues-760-search-service, cols="10,40,40"]
 |===
diff --git a/modules/release-notes/partials/docs-server-7.6.1-release-note.adoc b/modules/release-notes/partials/docs-server-7.6.1-release-note.adoc
index e2a64ca5c7..7971886c79 100644
--- a/modules/release-notes/partials/docs-server-7.6.1-release-note.adoc
+++ b/modules/release-notes/partials/docs-server-7.6.1-release-note.adoc
@@ -39,6 +39,16 @@ The system will not perform the merge, and it will leave the backups that should
 
 |===
 
+==== Index Service
+
+[#table-known-issues-761-index-service, cols="10,40,40"]
+|===
+|Issue | Description | Workaround
+
+include::partial$index-upgrade-issue.adoc[]
+
+|===
+
 ==== Search Service
 [#table-known-issues-761-search-service, cols="10,40,40"]
 |===
diff --git a/modules/release-notes/partials/index-upgrade-issue.adoc b/modules/release-notes/partials/index-upgrade-issue.adoc
new file mode 100644
index 0000000000..9424d673b3
--- /dev/null
+++ b/modules/release-notes/partials/index-upgrade-issue.adoc
@@ -0,0 +1,10 @@
+
+| https://issues.couchbase.com/browse/MB-62547[MB-62547]
+a| A critical issue occurs when using the offline-upgrade or graceful failover/delta-recovery upgrade methods on Index Service nodes from Couchbase Server versions 7.1 through 7.2 to versions 7.6.0 or 7.6.1. 
+
+WARNING: Using these methods to upgrade Index Service nodes to these versions corrupts existing indexes that require you to drop and rebuild them.
+
+a| If you have one or more Index Service nodes, Couchbase suggests you delay upgrading until the release of the next service patch for Couchbase Server (7.6.2) which resolves this issue.
+
+To work around this issue, use the xref:install:upgrade-procedure-selection.adoc#swap-rebalance[Swap Rebalance method] when upgrading to Couchbase Server 7.6.x. 
+