diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4eb962b5..9e197adf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+### 1.40.0
+
+- **Update**: added callbacks for views while skeletons change status to presented or hidden
+
 ### 1.39.0
 
 - **Added**: UIButton Appearance model
diff --git a/TIAppleMapUtils/TIAppleMapUtils.podspec b/TIAppleMapUtils/TIAppleMapUtils.podspec
index 837ddc85..04e5a334 100644
--- a/TIAppleMapUtils/TIAppleMapUtils.podspec
+++ b/TIAppleMapUtils/TIAppleMapUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIAppleMapUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for map objects clustering and interacting using Apple MapKit.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIAuth/TIAuth.podspec b/TIAuth/TIAuth.podspec
index 884ed177..4a25f30e 100644
--- a/TIAuth/TIAuth.podspec
+++ b/TIAuth/TIAuth.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIAuth'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Login, registration, confirmation and other related actions'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIDeveloperUtils/TIDeveloperUtils.podspec b/TIDeveloperUtils/TIDeveloperUtils.podspec
index 8c4e076b..94c0af39 100644
--- a/TIDeveloperUtils/TIDeveloperUtils.podspec
+++ b/TIDeveloperUtils/TIDeveloperUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIDeveloperUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Universal web view API'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIEcommerce/TIEcommerce.podspec b/TIEcommerce/TIEcommerce.podspec
index f6696364..ca618545 100644
--- a/TIEcommerce/TIEcommerce.podspec
+++ b/TIEcommerce/TIEcommerce.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIEcommerce'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Cart, products, promocodes, bonuses and other related actions'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIFoundationUtils/TIFoundationUtils.podspec b/TIFoundationUtils/TIFoundationUtils.podspec
index 3dd87f16..fe121109 100644
--- a/TIFoundationUtils/TIFoundationUtils.podspec
+++ b/TIFoundationUtils/TIFoundationUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIFoundationUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for Foundation framework classes.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIGoogleMapUtils/TIGoogleMapUtils.podspec b/TIGoogleMapUtils/TIGoogleMapUtils.podspec
index f5e13de7..e03444b9 100644
--- a/TIGoogleMapUtils/TIGoogleMapUtils.podspec
+++ b/TIGoogleMapUtils/TIGoogleMapUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIGoogleMapUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for map objects clustering and interacting using Google Maps SDK.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIKeychainUtils/TIKeychainUtils.podspec b/TIKeychainUtils/TIKeychainUtils.podspec
index 25c4fa16..f211ca7d 100644
--- a/TIKeychainUtils/TIKeychainUtils.podspec
+++ b/TIKeychainUtils/TIKeychainUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIKeychainUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for Keychain classes.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIMapUtils/TIMapUtils.podspec b/TIMapUtils/TIMapUtils.podspec
index 94019482..6a78ddd0 100644
--- a/TIMapUtils/TIMapUtils.podspec
+++ b/TIMapUtils/TIMapUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIMapUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for map objects clustering and interacting.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIMoyaNetworking/TIMoyaNetworking.podspec b/TIMoyaNetworking/TIMoyaNetworking.podspec
index c8d020a5..9157d4fb 100644
--- a/TIMoyaNetworking/TIMoyaNetworking.podspec
+++ b/TIMoyaNetworking/TIMoyaNetworking.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIMoyaNetworking'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Moya + Swagger network service.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TINetworking/TINetworking.podspec b/TINetworking/TINetworking.podspec
index e26aa3b6..77132491 100644
--- a/TINetworking/TINetworking.podspec
+++ b/TINetworking/TINetworking.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TINetworking'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Swagger-frendly networking layer helpers.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TINetworkingCache/TINetworkingCache.podspec b/TINetworkingCache/TINetworkingCache.podspec
index 3292f422..5ea18467 100644
--- a/TINetworkingCache/TINetworkingCache.podspec
+++ b/TINetworkingCache/TINetworkingCache.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TINetworkingCache'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Caching results of EndpointRequests.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIPagination/TIPagination.podspec b/TIPagination/TIPagination.podspec
index c2327dde..5bfaba1b 100644
--- a/TIPagination/TIPagination.podspec
+++ b/TIPagination/TIPagination.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIPagination'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Generic pagination component.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TISwiftUICore/TISwiftUICore.podspec b/TISwiftUICore/TISwiftUICore.podspec
index cad3bd44..6c399c22 100644
--- a/TISwiftUICore/TISwiftUICore.podspec
+++ b/TISwiftUICore/TISwiftUICore.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TISwiftUICore'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Core UI elements: protocols, views and helpers.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TISwiftUtils/TISwiftUtils.podspec b/TISwiftUtils/TISwiftUtils.podspec
index f610dc08..b4acb6c6 100644
--- a/TISwiftUtils/TISwiftUtils.podspec
+++ b/TISwiftUtils/TISwiftUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TISwiftUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Bunch of useful helpers for Swift development.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TITableKitUtils/TITableKitUtils.podspec b/TITableKitUtils/TITableKitUtils.podspec
index e7cdf5c4..13ad427d 100644
--- a/TITableKitUtils/TITableKitUtils.podspec
+++ b/TITableKitUtils/TITableKitUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TITableKitUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for TableKit classes.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIUIElements/Sources/Views/Skeletons/Protocols/Skeletonable.swift b/TIUIElements/Sources/Views/Skeletons/Protocols/Skeletonable.swift
index 4c5f2d9e..454bcf6d 100644
--- a/TIUIElements/Sources/Views/Skeletons/Protocols/Skeletonable.swift
+++ b/TIUIElements/Sources/Views/Skeletons/Protocols/Skeletonable.swift
@@ -24,4 +24,20 @@ import class UIKit.UIView
 
 public protocol Skeletonable {
     var viewsToSkeletons: [UIView] { get }
+    func skeletonsChangedState(_ state: SkeletonsState)
+}
+
+extension Skeletonable where Self: UIView {
+    public var viewsToSkeletons: [UIView] {
+        subviews
+    }
+
+    public func skeletonsChangedState(_ state: SkeletonsState) {
+        // Empty realization
+    }
+}
+
+public enum SkeletonsState {
+    case shown
+    case hidden
 }
diff --git a/TIUIElements/Sources/Views/Skeletons/SkeletonLayer.swift b/TIUIElements/Sources/Views/Skeletons/SkeletonLayer.swift
index 758765ff..5cd408c8 100644
--- a/TIUIElements/Sources/Views/Skeletons/SkeletonLayer.swift
+++ b/TIUIElements/Sources/Views/Skeletons/SkeletonLayer.swift
@@ -67,6 +67,8 @@ open class SkeletonLayer: CAShapeLayer {
 
     public var configuration: SkeletonsConfiguration
     public var isSkeletonsHolder: Bool = false
+
+    public weak var convertedView: UIView?
     public weak var baseView: UIView?
 
     public var isAnimating: Bool {
@@ -98,6 +100,8 @@ open class SkeletonLayer: CAShapeLayer {
     // MARK: - Open methods
 
     open func bind(to viewType: ViewType) {
+        convertedView = viewType.view
+
         configureAppearance(viewType)
         updateGeometry(viewType: viewType)
 
@@ -118,6 +122,14 @@ open class SkeletonLayer: CAShapeLayer {
         configuration.configurationDelegate?.layerDidConfigured(self, forViewType: viewType)
     }
 
+    open func skeletonsChangedState(_ state: SkeletonsState) {
+        guard let skeletonableView = convertedView as? Skeletonable else {
+            return
+        }
+
+        skeletonableView.skeletonsChangedState(state)
+    }
+
     open func remove(from view: UIView) {
         stopAnimation()
         removeFromSuperlayer()
@@ -126,6 +138,8 @@ open class SkeletonLayer: CAShapeLayer {
         if let observation = applicationStateObservation {
             NotificationCenter.default.removeObserver(observation)
         }
+
+        skeletonsChangedState(.hidden)
     }
 
     open func startAnimation() {
diff --git a/TIUIElements/Sources/Views/Skeletons/UIView+PresentingSkeletons.swift b/TIUIElements/Sources/Views/Skeletons/UIView+PresentingSkeletons.swift
index 47f49706..62684133 100644
--- a/TIUIElements/Sources/Views/Skeletons/UIView+PresentingSkeletons.swift
+++ b/TIUIElements/Sources/Views/Skeletons/UIView+PresentingSkeletons.swift
@@ -50,6 +50,7 @@ extension UIView {
                 return layer
             }
             .insert(onto: self)
+            .skeletonsShown()
     }
 
     public func hideSkeletons() {
@@ -104,10 +105,22 @@ extension UIView {
 
 // MARK: - Helper extension
 
-extension Array where Element: CALayer {
-    public func insert(onto view: UIView, at index: UInt32 = .max) {
+extension Array where Element: SkeletonLayer {
+    @discardableResult
+    public func skeletonsShown() -> Self {
+        self.forEach { subLayer in
+            subLayer.skeletonsChangedState(.shown)
+        }
+
+        return self
+    }
+
+    @discardableResult
+    public func insert(onto view: UIView, at index: UInt32 = .max) -> Self {
         self.forEach { subLayer in
             view.layer.insertSublayer(subLayer, at: index)
         }
+
+        return self
     }
 }
diff --git a/TIUIElements/TIUIElements.podspec b/TIUIElements/TIUIElements.podspec
index 929a4d54..8ab4a684 100644
--- a/TIUIElements/TIUIElements.podspec
+++ b/TIUIElements/TIUIElements.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIUIElements'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Bunch of useful protocols and views.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIUIKitCore/TIUIKitCore.podspec b/TIUIKitCore/TIUIKitCore.podspec
index b62c7eb6..7c6bf57d 100644
--- a/TIUIKitCore/TIUIKitCore.podspec
+++ b/TIUIKitCore/TIUIKitCore.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIUIKitCore'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Core UI elements: protocols, views and helpers.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIWebView/TIWebView.podspec b/TIWebView/TIWebView.podspec
index 9e3654b8..3d7826d6 100644
--- a/TIWebView/TIWebView.podspec
+++ b/TIWebView/TIWebView.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIWebView'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Universal web view API'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }
diff --git a/TIYandexMapUtils/TIYandexMapUtils.podspec b/TIYandexMapUtils/TIYandexMapUtils.podspec
index d832db7e..f2905293 100644
--- a/TIYandexMapUtils/TIYandexMapUtils.podspec
+++ b/TIYandexMapUtils/TIYandexMapUtils.podspec
@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name             = 'TIYandexMapUtils'
-  s.version          = '1.39.0'
+  s.version          = '1.40.0'
   s.summary          = 'Set of helpers for map objects clustering and interacting using Yandex Maps SDK.'
   s.homepage         = 'https://gitlab.ti/touchinstinct/LeadKit/tree/' + s.version.to_s + '/' + s.name
   s.license          = { :type => 'MIT', :file => 'LICENSE' }