diff --git a/compose.instance.yaml b/compose.instance.yaml
index 7c77693..997a667 100644
--- a/compose.instance.yaml
+++ b/compose.instance.yaml
@@ -25,7 +25,7 @@
     # compose pins an older image, so override it here. Point KALAMAR_IMAGE at
     # a locally built tag when testing renderer changes:
     #   make korap KALAMAR_INSTANCE=../Kalamar-Instance-IDS KALAMAR_IMAGE=korap/kalamar:v0.66-alpha-large
-    image: ${KALAMAR_IMAGE:-korap/kalamar:v0.66-alpha}
+    image: ${KALAMAR_IMAGE:-korap/kalamar:v0.66}
     environment:
       # Use this instance's config verbatim: skip the export-plugin entrypoint
       # hack, which rewrites /kalamar/kalamar.production.conf in place and would
@@ -34,5 +34,8 @@
     volumes:
       - ${KALAMAR_INSTANCE_DIR}/kalamar.ids-mannheim.conf:/kalamar/kalamar.production.conf:ro
       - ${KALAMAR_INSTANCE_DIR}/templates/custom:/kalamar/templates/custom:ro
+      # Documentation menu: puts the corpus section first. Mounted over the
+      # navigation Kalamar ships, so it has to be kept in sync with it.
+      - ${KALAMAR_INSTANCE_DIR}/templates/doc/navigation.json:/kalamar/templates/doc/navigation.json:ro
       - ${KALAMAR_INSTANCE_DIR}/default.plugins.json:/kalamar/default.plugins.json:ro
       - ${KALAMAR_INSTANCE_DIR}/public/robots.txt:/kalamar/public/robots.txt:ro
diff --git a/kalamar.ids-mannheim.conf b/kalamar.ids-mannheim.conf
index d11857c..f5fb84d 100644
--- a/kalamar.ids-mannheim.conf
+++ b/kalamar.ids-mannheim.conf
@@ -30,33 +30,11 @@
       ping_requests => 1,
       ping_site_id => 13
     },
+    # The corpus section and the order of the documentation menu come from
+    # this instance's templates/doc/navigation.json, which is mounted over
+    # the one Kalamar ships. Entries listed here are appended after it.
     navi_ext => [
       {
-        # Replaces Kalamar's default corpus section (same id) in place,
-        # extending it with the release-log sub-item.
-        "title" => "corpus",
-        "id" => "corpus",
-        "class" => "folded",
-        "items" => [
-          {
-            "title" => "releases",
-            "id" => "releases"
-          },
-          {
-            "title" => "composition",
-            "id" => "composition"
-          },
-          {
-            "title" => "useful_subcorpora",
-            "id" => "useful_subcorpora"
-          },
-          {
-            "title" => "named_vc",
-            "id" => "named_vc"
-          }
-        ]
-      },
-      {
         "title" => "Privacy",
         "id" => "privacy"
       },
@@ -102,6 +80,14 @@
       de_Nav_privacy => 'Datenschutz',
       de_Nav_corpora => 'Korpora',
       en_Nav_corpora => 'Corpora',
+      de_Nav_corpus => 'Korpusgrundlage',
+      en_Nav_corpus => 'Corpus basis',
+      en_Nav_composition => 'Composition',
+      de_Nav_composition => 'Zusammensetzung',
+      en_Nav_useful_subcorpora => 'Useful subcorpora',
+      de_Nav_useful_subcorpora => 'Nützliche Subkorpora',
+      en_Nav_named_vc => 'Named VC',
+      de_Nav_named_vc => 'Benamte VC',
       en_howToCite => 'Citation Help',
       de_howToCite => 'Zitierhilfe',
       en_Nav_citation => 'References / Citation Help',
diff --git a/templates/custom/de/doc/corpus/releases.html.md b/templates/custom/de/doc/corpus/releases.html.md
index 04c7511..c55cecb 100644
--- a/templates/custom/de/doc/corpus/releases.html.md
+++ b/templates/custom/de/doc/corpus/releases.html.md
@@ -34,13 +34,13 @@
     Fassung einen Absatz "Eine frühere Ausgabe benötigt?" ergänzen.
 -->
 
-## DeReKo-KorAP-2026-II (voraussichtlich 15.09.2026)
+## DeReKo-KorAP-2026-II (Release am 14.09.2026 ab 10 Uhr)
 
 DeReKo-KorAP-2026-II ist eine auf Grundlage von DeReKo-2026-I vollständig
 neu tokenisierte, annotierte und indexierte Ausgabe. Sie umfasst
 31.696.255.957 Tokens aus 95.565.305 Texten.
 
-Die Ausgabe wird voraussichtlich am 15.09.2026 offiziell veröffentlicht. Bis dahin ist
+Die Ausgabe wird am 14.09.2026 offiziell veröffentlicht. Bis dahin ist
 sie bereits unter
 [korap.ids-mannheim.de/instance/test-docker](https://korap.ids-mannheim.de/instance/test-docker)
 verfügbar.
diff --git a/templates/custom/doc/citation.html.ep b/templates/custom/doc/citation.html.ep
index e8175c7..c15953f 100644
--- a/templates/custom/doc/citation.html.ep
+++ b/templates/custom/doc/citation.html.ep
@@ -2,4 +2,4 @@
 
 %= page_title
 
-%= include 'partial/citation'
+%= include 'partial/citation', corpus_citation => 'custom/partial/citation/corpus'
diff --git a/templates/custom/doc/corpus/releases.html.md b/templates/custom/doc/corpus/releases.html.md
index a1401ef..b27ad17 100644
--- a/templates/custom/doc/corpus/releases.html.md
+++ b/templates/custom/doc/corpus/releases.html.md
@@ -32,13 +32,13 @@
     "Need an earlier release?" paragraph here and in the German version.
 -->
 
-## DeReKo-KorAP-2026-II (expected 2026-09-15)
+## DeReKo-KorAP-2026-II (to be released on 2026-09-14, starting at 10:00)
 
 DeReKo-KorAP-2026-II is a completely re-tokenised, re-annotated and re-indexed
 release based on DeReKo-2026-I. It comprises 31,696,255,957 tokens from
 95,565,305 texts.
 
-The official release is expected on 2026-09-15. Until then it is already available at
+The official release is expected on 2026-09-14. Until then it is already available at
 [korap.ids-mannheim.de/instance/test-docker](https://korap.ids-mannheim.de/instance/test-docker).
 
 ### Changed
diff --git a/templates/doc/navigation.json b/templates/doc/navigation.json
new file mode 100644
index 0000000..978ab67
--- /dev/null
+++ b/templates/doc/navigation.json
@@ -0,0 +1,167 @@
+[
+  {
+    "title": "Corpus",
+    "id": "corpus",
+    "class": "folded",
+    "items": [
+      {
+        "title": "releases",
+        "id": "releases"
+      },
+      {
+        "title": "composition",
+        "id": "composition"
+      },
+      {
+        "title": "useful_subcorpora",
+        "id": "useful_subcorpora"
+      },
+      {
+        "title": "named_vc",
+        "id": "named_vc"
+      }
+    ]
+  },
+  {
+    "title": "Query Languages",
+    "id": "ql",
+    "class": "folded",
+    "items": [
+      {
+        "title": "Cosmas II",
+        "id": "cosmas-2",
+        "class": "folded",
+        "items": [
+          {
+            "title": "Query Terms",
+            "id": "#queryterms"
+          },
+          {
+            "title": "Logical Operators",
+            "id": "#logical-operators"
+          },
+          {
+            "title": "Distance Operators",
+            "id": "#distance-operators"
+          }
+        ]
+      },
+      {
+        "title": "Poliqarp+",
+        "id": "poliqarp-plus",
+        "class": "folded",
+        "items": [
+          {
+            "title": "Simple Segments",
+            "id": "#segments"
+          },
+          {
+            "title": "Complex Segments",
+            "id": "#complex"
+          },
+          {
+            "title": "Span Segments",
+            "id": "#spans"
+          },
+          {
+            "title": "Paradigmatic Operators",
+            "id": "#paradigmatic-operators"
+          },
+          {
+            "title": "Syntagmatic Operators",
+            "id": "#syntagmatic-operators"
+          },
+          {
+            "title": "Class Operators",
+            "id": "#class-operators"
+          }
+        ]
+      },
+      {
+        "title": "CQP",
+        "id": "cqp",
+        "class": "folded",
+        "items": [
+          {
+            "title": "Simple Segments",
+            "id": "#segments"
+          },
+          {
+            "title": "Complex Segments",
+            "id": "#complex"
+          },
+          {
+            "title": "Span Segments",
+            "id": "#spans"
+          },
+          {
+            "title": "Paradigmatic Operators",
+            "id": "#paradigmatic-operators"
+          },
+          {
+            "title": "Syntagmatic Operators",
+            "id": "#syntagmatic-operators"
+          }
+        ]
+      },
+      {
+        "title": "Annis QL",
+        "id": "annis"
+      },
+      {
+        "title": "CQL",
+        "id": "cql"
+      },
+      {
+        "title": "FCSQL",
+        "id": "fcsql"
+      },
+      {
+        "title": "Regular Expressions",
+        "id": "regexp"
+      }
+    ]
+  },
+  {
+    "title": "Annotations",
+    "id": "annotation",
+    "class": "folded"
+  },
+  {
+    "title": "FAQ",
+    "id": "faq",
+    "class": "folded"
+  },
+  {
+    "title": "API",
+    "id": "api",
+    "class": "folded"
+  },
+  {
+    "title": "Development",
+    "id": "development",
+    "class": "folded",
+    "items": [
+      {
+        "title": "Kalamar",
+        "id": "kalamar"
+      },
+      {
+        "title": "Kustvakt",
+        "id": "kustvakt"
+      },
+      {
+        "title": "Koral",
+        "id": "koral"
+      },
+      {
+        "title": "Krill",
+        "id": "krill"
+      },
+      {
+        "title": "Karang",
+        "id": "karang"
+      }
+    ]
+  }
+]