diff --git a/LUPMIS2_Buffer_Circle_Tutorial.docx b/LUPMIS2_Buffer_Circle_Tutorial.docx
index 8acee2a..97a6970 100644
Binary files a/LUPMIS2_Buffer_Circle_Tutorial.docx and b/LUPMIS2_Buffer_Circle_Tutorial.docx differ
diff --git a/LUPMIS2_User_Manual_Part1.docx b/LUPMIS2_User_Manual_Part1.docx
index 7301ced..b997f1b 100644
Binary files a/LUPMIS2_User_Manual_Part1.docx and b/LUPMIS2_User_Manual_Part1.docx differ
diff --git a/dist/sw.js b/dist/sw.js
index 88d61d8..2ea9334 100644
--- a/dist/sw.js
+++ b/dist/sw.js
@@ -130,7 +130,14 @@
 //      not only in the moment a location is saved. Previously a reload put the
 //      layer back to hidden and every marker vanished. An empty district still
 //      opens with the layer off.
-const CACHE_VERSION = 'v23';
+// v24: Circle measurements can be resized after drawing: the tooltip on a
+//      finished circle carries minus, the figure (tap to type an exact radius)
+//      and plus, stepping by increments that grow with the size. Circle radius
+//      and area are now reported as ground distance rather than projected Web
+//      Mercator metres, which overstated them by 1/cos(latitude) — about 3 m on
+//      a 200 m circle at Wa. The Circle and Area analysis popups can be dragged
+//      by their title bar, staying attached to the shape they describe.
+const CACHE_VERSION = 'v24';
 const SHELL_CACHE   = `shell-${CACHE_VERSION}`;
 const MODULES_CACHE = `modules-${CACHE_VERSION}`;
 const API_CACHE     = `api-${CACHE_VERSION}`;
diff --git a/public/sw.js b/public/sw.js
index 88d61d8..2ea9334 100644
--- a/public/sw.js
+++ b/public/sw.js
@@ -130,7 +130,14 @@
 //      not only in the moment a location is saved. Previously a reload put the
 //      layer back to hidden and every marker vanished. An empty district still
 //      opens with the layer off.
-const CACHE_VERSION = 'v23';
+// v24: Circle measurements can be resized after drawing: the tooltip on a
+//      finished circle carries minus, the figure (tap to type an exact radius)
+//      and plus, stepping by increments that grow with the size. Circle radius
+//      and area are now reported as ground distance rather than projected Web
+//      Mercator metres, which overstated them by 1/cos(latitude) — about 3 m on
+//      a 200 m circle at Wa. The Circle and Area analysis popups can be dragged
+//      by their title bar, staying attached to the shape they describe.
+const CACHE_VERSION = 'v24';
 const SHELL_CACHE   = `shell-${CACHE_VERSION}`;
 const MODULES_CACHE = `modules-${CACHE_VERSION}`;
 const API_CACHE     = `api-${CACHE_VERSION}`;