diff --git a/DOC/ABOUT.HLP b/DOC/ABOUT.HLP
index 71be17c2..e09f91f1 100644
--- a/DOC/ABOUT.HLP
+++ b/DOC/ABOUT.HLP
@@ -1,6 +1,6 @@
 $ _            __                         
-$/ `| _  _ _. _ / _  _    March 28th, 2021
-$\_,|(_|_\_\|(_/_(_)(_)       Version 4.03
+$/ `| _  _ _. _ / _  _     April 6th, 2021
+$\_,|(_|_\_\|(_/_(_)(_)       Version 4.10
 
 !-changes;Changelog
 
diff --git a/DOC/CHANGES.HLP b/DOC/CHANGES.HLP
index b154c537..350a1465 100644
--- a/DOC/CHANGES.HLP
+++ b/DOC/CHANGES.HLP
@@ -5,19 +5,27 @@ Legend:
 + Additions         * Changes
 - Removals          / Bugfixes
 
-$< ClassicZoo dev >
+$< ClassicZoo 4.10 >
 
 + NEC PC-9801 port! It's fairly barebones
   (relies on text mode, vastly limiting
   its color output), but 100% functional.
-+ Text/code editing improvements!
++ Board editor improvements.
+  + Added support for cutting, copying
+    and pasting board tiles.
++ Text/code editor improvements.
+  + Added support for cutting, copying
+    and pasting lines of text.
+  + Added rudimentary syntax highlighting
+    for ZZT-OOP code.
   + Lines longer than 42 characters are
-    now supported! (The new limit is 58.)
+    now supported. (The new limit is 58.)
   + F10 can be used to input custom ASCII
     characters not available via keys.
   + Minor cursor movement tweaks.
-* (Viewing) text in windows should now
-  use a bit less memory while open.
+* Minor filesize/CPU optimizations have
+  been made to the engine.
+/ Fixed crash when ZZT.CFG was missing.
 / Fixed 28KB (ouch!) stack memory usage
   regression.
 
diff --git a/DOC/EDITOR.HLP b/DOC/EDITOR.HLP
index c699ec7a..88801a41 100644
--- a/DOC/EDITOR.HLP
+++ b/DOC/EDITOR.HLP
@@ -99,3 +99,10 @@ the screen.  These are:
 [f5] Place advanced elements on the
      board.
 !-editadve;What are advanced elements?
+
+[Ctrl+X] Cut board area; use ENTER to
+         mark the second point.
+[Ctrl+C] Copy board area; see above.
+[Ctrl+V] Paste board area; the cursor
+         location is treated as the
+         top-left corner.
diff --git a/build.properties b/build.properties
index db2612f6..d0446726 100644
--- a/build.properties
+++ b/build.properties
@@ -1,4 +1,4 @@
 NAME=ClassicZoo
-VERSION=4.03
+VERSION=4.10
 CONFIG_SUBTITLE=Originally created by Tim Sweeney
 COPYRIGHT=Copyright (c) 2021 Adrian Siekierka