diff --git a/InstallerSamples/WhatsNew/3_11_0/AdjacentGroupBy.pas b/InstallerSamples/WhatsNew/3_11_0/AdjacentGroupBy.pas
new file mode 100644
index 000000000..c1a9ecb16
--- /dev/null
+++ b/InstallerSamples/WhatsNew/3_11_0/AdjacentGroupBy.pas
@@ -0,0 +1,22 @@
+// 3.11 - AdjacentGroupBy
+type
+  Player = auto class
+    Name: string; Score: integer;
+  end;  
+
+function GetPlayers := [
+  new Player('Alice', 95),
+  new Player('Bob', 95),
+  new Player('Charlie', 110),
+  new Player('Diana', 110),
+  new Player('Karina', 120)
+];
+
+begin
+  var leaderboard := GetPlayers;
+  foreach var group in leaderboard.AdjacentGroupBy(p -> p.Score) do
+  begin
+    Println(group.Key);
+    group.Println;
+  end;
+end.
\ No newline at end of file
diff --git a/InstallerSamples/WhatsNew/3_11_0/ArrInitWithEmpty.pas b/InstallerSamples/WhatsNew/3_11_0/ArrInitWithEmpty.pas
index 0e4fc30c7..530e7e802 100644
--- a/InstallerSamples/WhatsNew/3_11_0/ArrInitWithEmpty.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/ArrInitWithEmpty.pas
@@ -1,4 +1,4 @@
-// Уточнение инициализации элемента массива пустой коллекцией
+// 3.11. Уточнение инициализации элемента массива пустой коллекцией
 begin
   var a: array of array of integer := [[],[],[1]];
   Println(a,TypeName(a));
diff --git a/InstallerSamples/WhatsNew/3_11_0/BetweenNew.pas b/InstallerSamples/WhatsNew/3_11_0/BetweenNew.pas
new file mode 100644
index 000000000..26e7856f1
--- /dev/null
+++ b/InstallerSamples/WhatsNew/3_11_0/BetweenNew.pas
@@ -0,0 +1,11 @@
+// 3.11. Внешняя Beetween
+begin
+  Between(6,2,6).Print;
+  Between(6,2,6,inclusive := False).Println;
+
+// Универсальная Between. Должен поддерживаться интерфейс IComparable<T>
+  var dt1 := DateTime.Create(2025,04,16);
+  var dt3 := DateTime.Now;
+  Between(DateTime.Now,dt1,dt3).Print; 
+  Between(DateTime.Now,dt1,dt3,inclusive := False).Println; 
+end.
\ No newline at end of file
diff --git a/InstallerSamples/WhatsNew/3_11_0/Flag1.pas b/InstallerSamples/WhatsNew/3_11_0/Flag1.pas
index 649e76a29..5af0f0abd 100644
--- a/InstallerSamples/WhatsNew/3_11_0/Flag1.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/Flag1.pas
@@ -1,4 +1,5 @@
-uses Graph3D;
+// 3.11. Cloth - анимируемый объект из ткани
+uses Graph3D;
 
 begin  
   Window.Caption := 'Развевающийся флаг';
diff --git a/InstallerSamples/WhatsNew/3_11_0/InRange.pas b/InstallerSamples/WhatsNew/3_11_0/InRange.pas
index bae4f2d17..5f5863273 100644
--- a/InstallerSamples/WhatsNew/3_11_0/InRange.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/InRange.pas
@@ -1,4 +1,5 @@
-begin
+// 3.11. Внешняя InRange
+begin
   // Поведение изменено!! Теперь диапазон [6,2] считается пустым
   5.InRange(6,2).Println; 
 
diff --git a/InstallerSamples/WhatsNew/3_11_0/IsOrdered1.pas b/InstallerSamples/WhatsNew/3_11_0/IsOrdered1.pas
index c7890adf8..47ad41257 100644
--- a/InstallerSamples/WhatsNew/3_11_0/IsOrdered1.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/IsOrdered1.pas
@@ -1,4 +1,5 @@
-type
+// 3.11 - IsOrdered
+type
   Player = auto class
     Name: string; Points: integer;
   end;  
diff --git a/InstallerSamples/WhatsNew/3_11_0/ParticleSystem.pas b/InstallerSamples/WhatsNew/3_11_0/ParticleSystem.pas
index 133879824..25725c168 100644
--- a/InstallerSamples/WhatsNew/3_11_0/ParticleSystem.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/ParticleSystem.pas
@@ -1,4 +1,5 @@
-uses Graph3D;
+// 3.11. ParticleSystem
+uses Graph3D;
 
 begin
   View3D.BackgroundColor := Colors.Black;
diff --git a/InstallerSamples/WhatsNew/3_11_0/SPython/py1.pys b/InstallerSamples/WhatsNew/3_11_0/SPython/py1.pys
new file mode 100644
index 000000000..a4f7e3a8b
--- /dev/null
+++ b/InstallerSamples/WhatsNew/3_11_0/SPython/py1.pys
@@ -0,0 +1 @@
+print('Привет! Это SPython!')
\ No newline at end of file
diff --git a/InstallerSamples/WhatsNew/3_11_0/exit_param1.pas b/InstallerSamples/WhatsNew/3_11_0/exit_param1.pas
index b80388847..c9a415ee0 100644
--- a/InstallerSamples/WhatsNew/3_11_0/exit_param1.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/exit_param1.pas
@@ -1,4 +1,5 @@
-function fff: integer;
+// 3.11 - exit(param)
+function fff: integer;
 begin
   exit(3)
 end;
diff --git a/InstallerSamples/WhatsNew/3_11_0/exit_param2.pas b/InstallerSamples/WhatsNew/3_11_0/exit_param2.pas
index e6d8401d4..9634c2f7a 100644
--- a/InstallerSamples/WhatsNew/3_11_0/exit_param2.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/exit_param2.pas
@@ -1,4 +1,5 @@
-function IsPrime(n: integer): boolean;
+// 3.11 - exit(param)
+function IsPrime(n: integer): boolean;
 begin
   if n < 2 then exit(False);
   for var i:=2 to n.Sqrt.Trunc do
diff --git a/InstallerSamples/WhatsNew/3_11_0/exit_param3.pas b/InstallerSamples/WhatsNew/3_11_0/exit_param3.pas
index 0829699b2..f0555ece8 100644
--- a/InstallerSamples/WhatsNew/3_11_0/exit_param3.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/exit_param3.pas
@@ -1,4 +1,5 @@
-begin
+// 3.11 - exit(param)
+begin
   var IsPrime: integer → boolean := n → begin
     if n < 2 then exit(False);
     for var i:=2 to n.Sqrt.Trunc do
diff --git a/InstallerSamples/WhatsNew/3_11_0/exit_param4.pas b/InstallerSamples/WhatsNew/3_11_0/exit_param4.pas
index ba17ecf39..ad391a4ba 100644
--- a/InstallerSamples/WhatsNew/3_11_0/exit_param4.pas
+++ b/InstallerSamples/WhatsNew/3_11_0/exit_param4.pas
@@ -1,4 +1,5 @@
-function FastPower(a: real; n: integer): real;
+// 3.11 - exit(param)
+function FastPower(a: real; n: integer): real;
 begin
   if n = 0 then exit(1); // a^0 = 1
   if n = 1 then exit(a); // a^1 = a