diff --git a/.last-modified/volumes/frus1977-80v15.xml b/.last-modified/volumes/frus1977-80v15.xml
index 09e6da0dc..2611920d0 100644
--- a/.last-modified/volumes/frus1977-80v15.xml
+++ b/.last-modified/volumes/frus1977-80v15.xml
@@ -1,2 +1,2 @@
-2025-08-19T10:13:21Z
+2025-12-15T20:31:09Z
diff --git a/.last-modified/volumes/frus1981-88v04.xml b/.last-modified/volumes/frus1981-88v04.xml
index 61dfadcdd..4b0723aa6 100644
--- a/.last-modified/volumes/frus1981-88v04.xml
+++ b/.last-modified/volumes/frus1981-88v04.xml
@@ -1,2 +1,2 @@
-2025-08-19T10:13:21Z
+2025-12-15T20:31:09Z
diff --git a/frus-toc/frus1977-80v15-toc.xml b/frus-toc/frus1977-80v15-toc.xml
index 36aae0ea7..bdb95f8ae 100644
--- a/frus-toc/frus1977-80v15-toc.xml
+++ b/frus-toc/frus1977-80v15-toc.xml
@@ -83,6 +83,11 @@
+
+ Index
+
diff --git a/frus-toc/frus1981-88v04-toc.xml b/frus-toc/frus1981-88v04-toc.xml
index 80ca5b777..cd42efd56 100644
--- a/frus-toc/frus1981-88v04-toc.xml
+++ b/frus-toc/frus1981-88v04-toc.xml
@@ -109,6 +109,11 @@
data-template-current-ids="appxA appxB appxC appxD appxE appendix">Appendix (Documents 384–388)
+
+ Index
+
diff --git a/volumes/frus1977-80v15.xml b/volumes/frus1977-80v15.xml
index e33d8620f..cefa93f7e 100644
--- a/volumes/frus1977-80v15.xml
+++ b/volumes/frus1977-80v15.xml
@@ -89093,5 +89093,8122 @@