diff --git a/CHANGELOG.md b/CHANGELOG.md
new file mode 100644
index 0000000..24afe02
--- /dev/null
+++ b/CHANGELOG.md
@@ -0,0 +1,12 @@
+# Changelog
+
+## Version 0.1.53.1-SNAPSHOT
+### New Features
+
+Support of hierarchic menus & page structures: 
+1. on configuration scope an additional parameter {:page-model [:flat | :hierarchic]} - flat will be the default. Flat mode is backward compatible.
+2. on page scope we respect {:navbar? [true|false]} in flat & hierarchic mode also.
+3. params now contain hierarchic pages. Pages is replacing no longer supported navbar-pages / sidebar-pages. Hierarchic pages may contain a sequence of children `{:children ({:title "child-page", :layout "page.html", :content " <p>child</p>"}) }
+
+### Breaking Changes
+Pages is replacing no longer supported navbar-pages / sidebar-pages. In order to realice navbar / sidebar functionality, you've now to write filters.
diff --git a/src/cryogen_core/compiler.clj b/src/cryogen_core/compiler.clj
index 929b17e..fd112f5 100644
--- a/src/cryogen_core/compiler.clj
+++ b/src/cryogen_core/compiler.clj
@@ -251,7 +251,9 @@
                                        :home            false
                                        :servlet-context (cryogen-io/path "/" blog-prefix "/")
                                        :page            page
-                                       :uri             uri}))))))
+                                       :uri             uri})))
+      (compile-pages params (:children page)))    
+    ))
 
 (defn compile-posts
   "Compiles all the posts into html and spits them out into the public folder"
@@ -466,7 +468,7 @@
                      (update-in [:post-date-format] (fnil str "yyyy-MM-dd"))
                      (update-in [:keep-files] (fnil seq []))
                      (update-in [:ignored-files] (fnil seq [#"^\.#.*" #".*\.swp$"]))
-                     (update-in [:navbar-mode] (fnil keyword :flat))
+                     (update-in [:page-model] (fnil keyword :flat))
                      )]
       (merge
         config
@@ -489,32 +491,30 @@
   []
   (println (green "compiling assets..."))
   (let [{:keys [^String site-url blog-prefix rss-name recent-posts sass-dest keep-files ignored-files previews? 
-                author-root-uri theme debug? navbar-mode]
-         :as config} (read-config)
-        posts        (map klipsify (add-prev-next (read-posts config)))
-        posts-by-tag (group-by-tags posts)
-        posts        (tag-posts posts config)
-        latest-posts (->> posts (take recent-posts) vec)
-        pages        (map klipsify (read-pages config))
-        home-page    (->> pages
-                          (filter #(boolean (:home? %)))
-                          (first))
-        other-pages  (->> pages
-                          (remove #{home-page})
-                          (add-prev-next))
-        [navbar-pages
-         sidebar-pages] (group-pages other-pages)
+                author-root-uri theme debug? page-model]
+         :as config}     (read-config)
+        posts            (map klipsify (add-prev-next (read-posts config)))
+        posts-by-tag     (group-by-tags posts)
+        posts            (tag-posts posts config)
+        latest-posts     (->> posts (take recent-posts) vec)
+        klipsified-pages (map klipsify (read-pages config))
+        modelled-pages   (cond 
+                           (= page-model :flat) klipsified-pages
+                           (= page-model :hierarchic) (hierarchic/build-hierarchic-map klipsified-pages)
+                           )
+        home-page        (->> modelled-pages
+                           (filter #(boolean (:home? %)))
+                           (first))
+        other-pages      (->> modelled-pages
+                              (remove #{home-page})
+                              (add-prev-next))
         params (merge config
                       {:today         (java.util.Date.)
                        :title         (:site-title config)
                        :active-page   "home"
                        :tags          (map (partial tag-info config) (keys posts-by-tag))
                        :latest-posts  latest-posts
-                       :navbar-pages  (cond 
-                                        (= navbar-mode :flat) navbar-pages
-                                        (= navbar-mode :hierarchic) (hierarchic/build-hierarchic-map navbar-pages)
-                                        )
-                       :sidebar-pages sidebar-pages
+                       :pages         other-pages
                        :home-page     (if home-page
                                          home-page
                                          (assoc (first latest-posts) :layout "home.html"))                     
@@ -524,12 +524,8 @@
                        :rss-uri       (cryogen-io/path "/" blog-prefix rss-name)
                        :site-url      (if (.endsWith site-url "/") (.substring site-url 0 (dec (count site-url))) site-url)})]
     (when debug?
-      (println (blue "debug: navbar-mode:"))
-      (println "\t-->" (cyan navbar-mode))
-      (println (blue "debug: navbar-pages:"))
-      (println "\t-->" (cyan (-> params :navbar-pages)))
-      (println (blue "debug: sidebar-pages:"))
-      (println "\t-->" (cyan (-> params :sidebar-pages)))
+      (println (blue "debug: page-model:"))
+      (println "\t-->" (cyan page-model))
       (println (blue "debug: home-page:"))
       (println "\t-->" (cyan (-> params :home-page)))
       )
@@ -540,7 +536,7 @@
     (println (blue "copying resources"))
     (cryogen-io/copy-resources config)
     (copy-resources-from-markup-folders config)
-    (compile-pages params other-pages)
+    (compile-pages params modelled-pages)
     (compile-posts params posts)
     (compile-tags params posts-by-tag)
     (compile-tags-page params)
diff --git a/src/cryogen_core/hierarchic.clj b/src/cryogen_core/hierarchic.clj
index 3a22788..80356cb 100644
--- a/src/cryogen_core/hierarchic.clj
+++ b/src/cryogen_core/hierarchic.clj
@@ -19,7 +19,7 @@
   )
 
 (defn build-hierarchic-level
-  "builds one level of nav-map and recurs to next level."
+  "builds one level of hierarchic tree recurs to next level."
   [parent-uri pages]
   (let [current-level (+ 1 (uri-level parent-uri))
         pages-of-parent (filter-pages-for-uri parent-uri pages)
@@ -36,7 +36,7 @@
     ))
 
 (defn build-hierarchic-map
-  "builds a nav-map from pages"
+  "builds a hierarchic tree from pages"
   [pages]
   (let [sorted-pages (sort-by :uri pages)]
      (build-hierarchic-level "/pages/" sorted-pages)