diff --git a/BSolutions.Bocons/BSolutions.Bocons.Test/Models/Forms/RegisterViewModel.cs b/BSolutions.Bocons/BSolutions.Bocons.Test/Models/Forms/RegisterViewModel.cs
index 865ebd4..fd497d0 100644
--- a/BSolutions.Bocons/BSolutions.Bocons.Test/Models/Forms/RegisterViewModel.cs
+++ b/BSolutions.Bocons/BSolutions.Bocons.Test/Models/Forms/RegisterViewModel.cs
@@ -1,6 +1,7 @@
 using Microsoft.AspNetCore.Mvc.Rendering;
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.ComponentModel.DataAnnotations;
 using System.Linq;
 using System.Threading.Tasks;
@@ -16,7 +17,7 @@ public class RegisterViewModel
         [Required]
         public string Name { get; set; }
 
-        [Display(Name = "Email Address")]
+        [DisplayName("E-Mail Adresse")]
         [Required]
         [EmailAddress]
         public string Email { get; set; }
diff --git a/BSolutions.Bocons/BSolutions.Bocons.Test/Views/Forms/Register.cshtml b/BSolutions.Bocons/BSolutions.Bocons.Test/Views/Forms/Register.cshtml
index fbf28cd..2a9019f 100644
--- a/BSolutions.Bocons/BSolutions.Bocons.Test/Views/Forms/Register.cshtml
+++ b/BSolutions.Bocons/BSolutions.Bocons.Test/Views/Forms/Register.cshtml
@@ -7,18 +7,21 @@
     <row>
         <column>
             <form asp-action="Register" bc-validation="true">
-                <form-group>
+                @*<form-group>
                     <input asp-for="Date" bc-static="true" />
                 </form-group>
                 <form-group>
                     <input type="text" asp-for="Name" />
-                </form-group>
-                <form-group>
-                    <input type="email" asp-for="Email" />
-                </form-group>
+                </form-group>*@
+                @*<form-group>
+                    <input id="eeeeemail" type="email" asp-for="Email" bc-help="Tipphkcizt" />
+                </form-group>*@
                 <form-group>
+<input bc-label="E-Mail-Adresse" />
+</form-group>
+                @*<form-group>
                     <select asp-for="Country" asp-items="Model.Countries"></select>
-                </form-group>
+                </form-group>*@
 
                 <button type="submit">Submit</button>
             </form>
diff --git a/BSolutions.Bocons/BSolutions.Bocons/BSolutions.Bocons.csproj b/BSolutions.Bocons/BSolutions.Bocons/BSolutions.Bocons.csproj
index cfa8a77..cbe8f8a 100644
--- a/BSolutions.Bocons/BSolutions.Bocons/BSolutions.Bocons.csproj
+++ b/BSolutions.Bocons/BSolutions.Bocons/BSolutions.Bocons.csproj
@@ -32,7 +32,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="BSolutions.Brecons.Core" Version="2.1.6" />
+    <PackageReference Include="BSolutions.Brecons.Core" Version="2.1.8" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/BSolutions.Bocons/BSolutions.Bocons/Controls/Buttons/ButtonDropdownTagHelper.cs b/BSolutions.Bocons/BSolutions.Bocons/Controls/Buttons/ButtonDropdownTagHelper.cs
index e3a44be..8800642 100644
--- a/BSolutions.Bocons/BSolutions.Bocons/Controls/Buttons/ButtonDropdownTagHelper.cs
+++ b/BSolutions.Bocons/BSolutions.Bocons/Controls/Buttons/ButtonDropdownTagHelper.cs
@@ -80,7 +80,6 @@ protected override async Task RenderProcessAsync(TagHelperContext context, TagHe
             {
                 output.AddCssClass("dropdown-toggle");
                 output.MergeAttribute("type", "button");
-                output.MergeAttribute("id", this.Id);
                 output.MergeAttribute("data-toggle", "dropdown");
                 output.MergeAttribute("aria-haspopup", "true");
                 output.MergeAttribute("aria-expanded", "false");
@@ -100,7 +99,6 @@ private TagBuilder DropdownButtonBuilder()
             TagBuilder button = new TagBuilder("button");
             button.AddCssClass("btn dropdown-toggle");
             button.MergeAttribute("type", "button");
-            button.MergeAttribute("id", this.Id);
             button.MergeAttribute("data-toggle", "dropdown");
             button.MergeAttribute("aria-haspopup", "true");
             button.MergeAttribute("aria-expanded", "false");
diff --git a/BSolutions.Bocons/BSolutions.Bocons/Controls/Components/ProgressTagHelper.cs b/BSolutions.Bocons/BSolutions.Bocons/Controls/Components/ProgressTagHelper.cs
index 37379b6..0553778 100644
--- a/BSolutions.Bocons/BSolutions.Bocons/Controls/Components/ProgressTagHelper.cs
+++ b/BSolutions.Bocons/BSolutions.Bocons/Controls/Components/ProgressTagHelper.cs
@@ -50,6 +50,9 @@ protected override void RenderProcess(TagHelperContext context, TagHelperOutput
             output.TagMode = TagMode.StartTagAndEndTag;
             output.AddCssClass("progress");
 
+            // Height
+            output.AddCssStyle("height", $"{this.Height}px");
+
             output.Content.SetHtmlContent(this.BuildProgressbar());
         }
 
@@ -63,7 +66,7 @@ private TagBuilder BuildProgressbar()
             progressbar.MergeAttribute("aria-valuemax", "100");
             progressbar.MergeAttribute("aria-valuenow", this.Value.ToString());
             progressbar.MergeAttribute("role", "progressbar");
-            progressbar.MergeAttribute("style", $"width: {this.Value}%; height: {this.Height}px");
+            progressbar.MergeAttribute("style", $"width: {this.Value}%;");
 
             // Label
             if (this.HasLabel)
diff --git a/BSolutions.Bocons/BSolutions.Bocons/Controls/Forms/ValidationTagHelper.cs b/BSolutions.Bocons/BSolutions.Bocons/Controls/Forms/ValidationTagHelper.cs
index 634fc9a..5177014 100644
--- a/BSolutions.Bocons/BSolutions.Bocons/Controls/Forms/ValidationTagHelper.cs
+++ b/BSolutions.Bocons/BSolutions.Bocons/Controls/Forms/ValidationTagHelper.cs
@@ -51,15 +51,15 @@ protected override void RenderProcess(TagHelperContext context, TagHelperOutput
             }
         }
 
-        public static IHtmlContent Generate(ModelExpression model, ViewContext viewContext)
+        public static IHtmlContent Generate(FormTagHelperBase tagHelper)
         {
             var builder = new TagBuilder("div") { TagRenderMode = TagRenderMode.Normal };
             builder.AddCssClass("invalid-feedback");
-            builder.MergeAttribute("data-valmsg-for", model.Metadata.PropertyName);
+            builder.MergeAttribute("data-valmsg-for", tagHelper.Id);
             builder.MergeAttribute("data-valmsg-replace", "true");
 
             // Error Message
-            var modelState = viewContext.ViewData.ModelState.FirstOrDefault(k => k.Key == model.Metadata.PropertyName).Value;
+            var modelState = tagHelper.ViewContext.ViewData.ModelState.FirstOrDefault(k => k.Key == tagHelper.For.Metadata.PropertyName).Value;
             if (modelState != null && modelState.ValidationState == ModelValidationState.Invalid)
             {
                 builder.AddCssClass("field-validation-error");
diff --git a/BSolutions.Bocons/BSolutions.Bocons/Rendering/FormTagHelperRendering.cs b/BSolutions.Bocons/BSolutions.Bocons/Rendering/FormTagHelperRendering.cs
index 8dd234d..fd5667c 100644
--- a/BSolutions.Bocons/BSolutions.Bocons/Rendering/FormTagHelperRendering.cs
+++ b/BSolutions.Bocons/BSolutions.Bocons/Rendering/FormTagHelperRendering.cs
@@ -24,7 +24,7 @@ internal static void RenderValidation(this BoconsFormTagHelperBase tagHelper, Ta
             // Validation Message
             if (tagHelper.For != null && tagHelper.Validation)
             {
-                output.PostElement.AppendHtml(ValidationTagHelper.Generate(tagHelper.For, tagHelper.ViewContext));
+                output.PostElement.AppendHtml(ValidationTagHelper.Generate(tagHelper));
             }
         }
 
diff --git a/docs/ChangeLog.md b/docs/ChangeLog.md
index 2916e29..e6b776c 100644
--- a/docs/ChangeLog.md
+++ b/docs/ChangeLog.md
@@ -1,15 +1,18 @@
-# Change Logs & Releases
+# Change Log and Releases
 
 In this page, you can find a record of all the changes made to Bocons such as bug fixes, new features, etc.
 
-## Version 2.4.0 <small class="release-date">Oct. 09, 2018</small>
+## Version 2.4.0 <small class="release-date">Dec. 21, 2018</small>
 
-This release of Bocons supports Bootstrap 4.1.3 and comes with many extensions, bugfixes and a new documentation published on GitHub.
+This release of Bocons supports Bootstrap 4.1.3 and comes with some bugfixes and small changes requested by the community.
 
 <ul class="changelog">
-    <li class="ch-added">Input: Support for Bootstrap Buttons with <code><input type="button" /></code> Tag Helper.</li>
+    <li class="ch-added">Input: Support for Bootstrap Buttons with <code>&lt;input type="button" /&gt;</code> Tag Helper.</li>
     <li class="ch-added">Add support for Target Framework <code>netstandard1.6</code>.</li>
     <li class="ch-changed">Table: The attribute <code>bc-bordered</code> has been replaced by the <code>bc-border</code> attribute.</li>
+    <li class="ch-changed">Switch from bower package manager to Yarn.</li>
+    <li class="ch-fixed">Form Controls: Wrong <code>for</code> attribute generated in label tags.</li>
+    <li class="ch-fixed">Progress: Height applied to wrong tag.</li>
 </ul>
 
 <a href="https://www.nuget.org/packages/BSolutions.Bocons/2.4.0" class="btn btn-info">