diff --git a/src/Umbraco.Core/Configuration/Models/RuntimeMinificationCacheBuster.cs b/src/Umbraco.Core/Configuration/Models/RuntimeMinificationCacheBuster.cs
index 37426fa84f..b86b57ee3a 100644
--- a/src/Umbraco.Core/Configuration/Models/RuntimeMinificationCacheBuster.cs
+++ b/src/Umbraco.Core/Configuration/Models/RuntimeMinificationCacheBuster.cs
@@ -1,5 +1,6 @@
 namespace Umbraco.Cms.Core.Configuration.Models;
 
+[Obsolete("Runtime minification is no longer supported. Will be removed entirely in V16.")]
 public enum RuntimeMinificationCacheBuster
 {
     Version,
diff --git a/src/Umbraco.Core/Configuration/Models/RuntimeMinificationSettings.cs b/src/Umbraco.Core/Configuration/Models/RuntimeMinificationSettings.cs
index 6ec84ffe1e..cff3d9d5da 100644
--- a/src/Umbraco.Core/Configuration/Models/RuntimeMinificationSettings.cs
+++ b/src/Umbraco.Core/Configuration/Models/RuntimeMinificationSettings.cs
@@ -2,6 +2,7 @@ using System.ComponentModel;
 
 namespace Umbraco.Cms.Core.Configuration.Models;
 
+[Obsolete("Runtime minification is no longer supported. Will be removed entirely in V16.")]
 [UmbracoOptions(Constants.Configuration.ConfigRuntimeMinification)]
 public class RuntimeMinificationSettings
 {
diff --git a/src/Umbraco.Core/Constants-Configuration.cs b/src/Umbraco.Core/Constants-Configuration.cs
index e864b6041c..459becd320 100644
--- a/src/Umbraco.Core/Constants-Configuration.cs
+++ b/src/Umbraco.Core/Constants-Configuration.cs
@@ -48,7 +48,9 @@ public static partial class Constants
         public const string ConfigRequestHandler = ConfigPrefix + "RequestHandler";
         public const string ConfigRuntime = ConfigPrefix + "Runtime";
         public const string ConfigRuntimeMode = ConfigRuntime + ":Mode";
+        [Obsolete("Runtime minification is no longer supported. Will be removed entirely in V16.")]
         public const string ConfigRuntimeMinification = ConfigPrefix + "RuntimeMinification";
+        [Obsolete("Runtime minification is no longer supported. Will be removed entirely in V16.")]
         public const string ConfigRuntimeMinificationVersion = ConfigRuntimeMinification + ":Version";
         public const string ConfigSecurity = ConfigPrefix + "Security";
         public const string ConfigBasicAuth = ConfigPrefix + "BasicAuth";
diff --git a/src/Umbraco.Infrastructure/DependencyInjection/UmbracoBuilder.CoreServices.cs b/src/Umbraco.Infrastructure/DependencyInjection/UmbracoBuilder.CoreServices.cs
index c95576395e..b2b38dd3c7 100644
--- a/src/Umbraco.Infrastructure/DependencyInjection/UmbracoBuilder.CoreServices.cs
+++ b/src/Umbraco.Infrastructure/DependencyInjection/UmbracoBuilder.CoreServices.cs
@@ -93,7 +93,6 @@ public static partial class UmbracoBuilderExtensions
             .Add<JITOptimizerValidator>()
             .Add<UmbracoApplicationUrlValidator>()
             .Add<UseHttpsValidator>()
-            .Add<RuntimeMinificationValidator>()
             .Add<ModelsBuilderModeValidator>();
 
         // composers
diff --git a/src/Umbraco.Infrastructure/Runtime/RuntimeModeValidators/RuntimeMinificationValidator.cs b/src/Umbraco.Infrastructure/Runtime/RuntimeModeValidators/RuntimeMinificationValidator.cs
index 01bc0dd3dc..ce593704fc 100644
--- a/src/Umbraco.Infrastructure/Runtime/RuntimeModeValidators/RuntimeMinificationValidator.cs
+++ b/src/Umbraco.Infrastructure/Runtime/RuntimeModeValidators/RuntimeMinificationValidator.cs
@@ -8,6 +8,7 @@ namespace Umbraco.Cms.Infrastructure.Runtime.RuntimeModeValidators;
 /// Validates whether the runtime minification cache buster is not set to <see cref="RuntimeMinificationCacheBuster.Timestamp" /> when in production runtime mode.
 /// </summary>
 /// <seealso cref="Umbraco.Cms.Infrastructure.Runtime.RuntimeModeValidators.RuntimeModeProductionValidatorBase" />
+[Obsolete("Runtime minification is no longer supported, so this is no longer relevant. Will be removed entirely in V16.")]
 public class RuntimeMinificationValidator : RuntimeModeProductionValidatorBase
 {
     private readonly IOptionsMonitor<RuntimeMinificationSettings> _runtimeMinificationSettings;
diff --git a/tools/Umbraco.JsonSchema/UmbracoCmsSchema.cs b/tools/Umbraco.JsonSchema/UmbracoCmsSchema.cs
index 5a65dc93d2..7c1d4d852a 100644
--- a/tools/Umbraco.JsonSchema/UmbracoCmsSchema.cs
+++ b/tools/Umbraco.JsonSchema/UmbracoCmsSchema.cs
@@ -60,6 +60,7 @@ internal class UmbracoCmsSchema
 
         public required RichTextEditorSettings RichTextEditor { get; set; }
 
+        [Obsolete("Runtime minification is no longer supported. Will be removed entirely in V16.")]
         public required RuntimeMinificationSettings RuntimeMinification { get; set; }
 
         public required BasicAuthSettings BasicAuth { get; set; }