diff --git a/CHANGES b/CHANGES
index 0d6f67bbb..ff50336c2 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,9 +1,36 @@
 Changes for SVN top of tree:
 
+mapbuilding/objects.trs, mapbuilding/objects.arc: Applied slightly modified
+patch #2084099 "buildable altars", courtesy of meflin.
+mapbuilding/mbaltar_none.base.111.png: New image.
+Raphaël Quinet 2008-08-30
+
 monster/animal/giant_worm/purple_worm.arc, ground/nimground/Nimground3_purple.arc:
 Replaced purple (unrecognized color) with black in magicmap and color_fg fields.
 Rick Tanner 2008-08-20
 
+mapbuilding/building.arc, mapbuilding/building.trs: Added new archetype
+building_window, a building material using the new subtype 4.  This allows
+the player to build windows in existing walls.
+mapbuilding/mbwindow.base.111.png: New image
+Raphaël Quinet 2008-08-04
+
+mapbuilding/building.arc, mapbuilding/building.trs: Added new buildable
+fence.  This is useful for those who want walls that do not block the view.
+Fixed a bug in the treasure list shop_building_pupland that prevented it
+from including any walls (replaced the treasure list
+build_material_floor_pupland by building_material_stonewall_pupland).
+mapbuilding/mbswall_0.base.111.png: New image.
+Raphaël Quinet 2008-08-03
+
+wall/swall/swall.arc: The name "fence" is more appropriate for the archetype
+"swall" (spiked wall).
+Raphaël Quinet 2008-08-03
+
+shop/Floors/shopweapoeast.trs: Fixed a broken treasure list that prevented
+the nine ring sword from being created.
+Raphaël Quinet 2008-08-01
+
 disease/incontinence.arc, disease/diarrhea.arc, disease/rabies.arc: Make puddles
 from diseases go away after some time, for incontinence and rabies we should
 probably have shrinking animations, like for icor (and thus also for diarrhea),
diff --git a/mapbuilding/mbaltar_none.base.111.png b/mapbuilding/mbaltar_none.base.111.png
new file mode 100644
index 000000000..3ffb06a17
Binary files /dev/null and b/mapbuilding/mbaltar_none.base.111.png differ
diff --git a/mapbuilding/objects.arc b/mapbuilding/objects.arc
index ab96cefd3..fbd0d3446 100644
--- a/mapbuilding/objects.arc
+++ b/mapbuilding/objects.arc
@@ -58,3 +58,14 @@ subtype 3
 face mbbed_save.111
 slaying bed_save
 end
+Object building_altar
+name Altar material
+nrof 1
+weight 25000
+value 900000
+type 161
+subtype 3
+level 30
+face altar.111
+slaying mbaltar_none
+end
diff --git a/mapbuilding/objects.trs b/mapbuilding/objects.trs
index 1e29c8be9..f6fc55f81 100644
--- a/mapbuilding/objects.trs
+++ b/mapbuilding/objects.trs
@@ -16,4 +16,7 @@ treasureone building_objects
   more
   arch building_bed_save
     chance 1
+  more
+  arch building_altar
+    chance 1
 end