diff --git a/McBitFont/Form1.cs b/McBitFont/Form1.cs
index 56d8659..55cdcc9 100644
--- a/McBitFont/Form1.cs
+++ b/McBitFont/Form1.cs
@@ -57,7 +57,7 @@ namespace McBitFont {
         public bool monospaced = false;
         private bool modified = false;
         private bool prjModified = false;
-        public const string version = "2.0";
+        public const string version = "2.1";
         public string prjName = "Untitled";
         public string prjFileName = "";
         private int codepage = 1251;
@@ -1090,6 +1090,7 @@ namespace McBitFont {
         }
 
         private void MainForm_FormClosing(object sender, FormClosingEventArgs e) {
+            CheckModifiedFrame();
             if (prjModified) {
                 if (MessageBox.Show("The project is modified.\nAre you sure you want to quit?", "Are you sure?", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.No) {
                     e.Cancel = true;
diff --git a/McBitFont/McBitFont.csproj b/McBitFont/McBitFont.csproj
index ec839cf..1cbb2e4 100644
--- a/McBitFont/McBitFont.csproj
+++ b/McBitFont/McBitFont.csproj
@@ -20,8 +20,10 @@
     <UseWindowsForms>true</UseWindowsForms>
     <ImportWindowsDesktopTargets>true</ImportWindowsDesktopTargets>
     <ApplicationIcon>icon_64.ico</ApplicationIcon>
-    <AssemblyVersion>2.0.0.0</AssemblyVersion>
-    <FileVersion>2.0.0.0</FileVersion>
+    <AssemblyVersion>2.1.0.0</AssemblyVersion>
+    <FileVersion>2.1.0.0</FileVersion>
+    <Version>$(VersionPrefix)2.1.0</Version>
+    <Copyright>Anton Mukhin</Copyright>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
     <DebugType>portable</DebugType>
diff --git a/TODO.txt b/TODO.txt
index cd2db92..9cdfee3 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -1,28 +1,7 @@
 Application:
-V Migrate from .Net Framework 4.7 to .NET 9
-V New Save file format! Use McBitFont v1.7 to convert old save files to the new format.
-V Better quality pictures in symbol list
-V Spinning cursor when application is busy
-V Change Menu icons
-V Re-arranged menu items
-V Option to display codes in Hex numbers
-V Make symbol list wider to display 8 characters instead of 7
 
 Functionality:
-V Fill canvas button
-V Context menu in symbol navigator
-V Delete symbols before/after selected
-V Shift all symbols on code line (change symbol codes)
-V Specify starting code (extends the shift)
-V Ability to make monospaced font a variable width one
-V Undo/Redo for canvas changes
-V Image import from a file
-V Import from a text array
-V Rectangle selection to mass-paint, shift and mirror pixels etc...
-V "Packed" fonts export
-V "Bytes total comment in export
 
 Bugs:
-V Improper bytes count for 16 or 32 bit numbers export
-V Exception on Code Shift when nothing is selected in Symbols List
-V Wrongly mark Project as modified on symbol selection
+V EncodingProvider hotfix
+V Check if frame changed before exit application