diff --git a/NGitLab.Mock.Tests/MergeRequestsMockTests.cs b/NGitLab.Mock.Tests/MergeRequestsMockTests.cs
index e1947636..74419282 100644
--- a/NGitLab.Mock.Tests/MergeRequestsMockTests.cs
+++ b/NGitLab.Mock.Tests/MergeRequestsMockTests.cs
@@ -437,4 +437,57 @@ public void Test_create_merge_request_without_target_project_id()
 
         Assert.That(mergeRequest, Is.Not.Null);
     }
+
+    [Test]
+    public void Test_create_merge_request_with_merge_after()
+    {
+        using var server = new GitLabConfig()
+            .WithUser("User1", isDefault: true)
+            .WithProject("Test", addDefaultUserAsMaintainer: true, configure: project => project
+                .WithCommit("Initial commit")
+                .WithCommit("Second commit", sourceBranch: "feature-branch", configure: commit => commit
+                    .WithFile("file.txt", "content")))
+            .BuildServer();
+
+        var client = server.CreateClient();
+        var mergeAfter = new DateTime(2030, 1, 2, 3, 4, 5, DateTimeKind.Utc);
+
+        var mergeRequest = client
+            .GetMergeRequest(1)
+            .Create(new MergeRequestCreate
+            {
+                SourceBranch = "feature-branch",
+                TargetBranch = "main",
+                Title = "Merge request 1",
+                MergeAfter = mergeAfter,
+            });
+
+        Assert.That(mergeRequest.MergeAfter, Is.EqualTo(mergeAfter));
+    }
+
+    [Test]
+    public void Test_update_merge_request_with_merge_after()
+    {
+        using var server = new GitLabConfig()
+            .WithUser("User1", isDefault: true)
+            .WithProject("Test", addDefaultUserAsMaintainer: true, configure: project => project
+                .WithCommit("Initial commit")
+                .WithCommit("Second commit", sourceBranch: "feature-branch", configure: commit => commit
+                    .WithFile("file.txt", "content")))
+            .BuildServer();
+
+        var mrClient = server.CreateClient().GetMergeRequest(1);
+        var mergeRequest = mrClient.Create(new MergeRequestCreate
+        {
+            SourceBranch = "feature-branch",
+            TargetBranch = "main",
+            Title = "Merge request 1",
+        });
+        var mergeAfter = new DateTime(2030, 1, 2, 3, 4, 5, DateTimeKind.Utc);
+
+        var updated = mrClient.Update(mergeRequest.Iid, new MergeRequestUpdate { MergeAfter = mergeAfter });
+
+        Assert.That(mergeRequest.MergeAfter, Is.Null);
+        Assert.That(updated.MergeAfter, Is.EqualTo(mergeAfter));
+    }
 }
diff --git a/NGitLab.Mock/Clients/MergeRequestClient.cs b/NGitLab.Mock/Clients/MergeRequestClient.cs
index 9e662619..6670dc05 100644
--- a/NGitLab.Mock/Clients/MergeRequestClient.cs
+++ b/NGitLab.Mock/Clients/MergeRequestClient.cs
@@ -345,6 +345,7 @@ public Models.MergeRequest Create(MergeRequestCreate mergeRequestCreate)
             mergeRequest.Description = mergeRequestCreate.Description;
             mergeRequest.ShouldRemoveSourceBranch = mergeRequestCreate.RemoveSourceBranch;
             mergeRequest.Squash = mergeRequestCreate.Squash;
+            mergeRequest.MergeAfter = mergeRequestCreate.MergeAfter;
             SetLabels(mergeRequest, mergeRequestCreate.Labels, labelsToAdd: null, labelsToRemove: null);
 
             return mergeRequest.ToMergeRequestClient();
@@ -714,6 +715,11 @@ public Models.MergeRequest Update(long mergeRequestIid, MergeRequestUpdate merge
                 mergeRequest.Title = mergeRequestUpdate.Title;
             }
 
+            if (mergeRequestUpdate.MergeAfter != null)
+            {
+                mergeRequest.MergeAfter = mergeRequestUpdate.MergeAfter;
+            }
+
             SetLabels(mergeRequest, mergeRequestUpdate.Labels, mergeRequestUpdate.AddLabels, mergeRequestUpdate.RemoveLabels);
 
             mergeRequest.UpdatedAt = DateTimeOffset.UtcNow;
diff --git a/NGitLab.Mock/MergeRequest.cs b/NGitLab.Mock/MergeRequest.cs
index 351ccdb5..642d5735 100644
--- a/NGitLab.Mock/MergeRequest.cs
+++ b/NGitLab.Mock/MergeRequest.cs
@@ -124,6 +124,8 @@ public IReadOnlyList<Models.MergeRequestVersion> Versions
 
     public DateTimeOffset? ClosedAt { get; set; }
 
+    public DateTimeOffset? MergeAfter { get; set; }
+
     public DateTimeOffset UpdatedAt { get; set; } = DateTimeOffset.UtcNow;
 
     public Sha1 Sha { get; private set; }
@@ -299,6 +301,7 @@ internal Models.MergeRequest ToMergeRequestClient()
             UpdatedAt = UpdatedAt.UtcDateTime,
             MergedAt = MergedAt?.UtcDateTime,
             ClosedAt = ClosedAt?.UtcDateTime,
+            MergeAfter = MergeAfter?.UtcDateTime,
             Description = Description,
             Draft = Draft,
             Id = Id,
diff --git a/NGitLab.Mock/PublicAPI.Unshipped.txt b/NGitLab.Mock/PublicAPI.Unshipped.txt
index 77630c8b..b59cd90e 100644
--- a/NGitLab.Mock/PublicAPI.Unshipped.txt
+++ b/NGitLab.Mock/PublicAPI.Unshipped.txt
@@ -671,6 +671,8 @@ NGitLab.Mock.MergeRequest.HeadSha.get -> string
 NGitLab.Mock.MergeRequest.Id.get -> long
 NGitLab.Mock.MergeRequest.Iid.get -> long
 NGitLab.Mock.MergeRequest.Labels.get -> System.Collections.Generic.IList<string>
+NGitLab.Mock.MergeRequest.MergeAfter.get -> System.DateTimeOffset?
+NGitLab.Mock.MergeRequest.MergeAfter.set -> void
 NGitLab.Mock.MergeRequest.MergeCommitSha.get -> NGitLab.Sha1?
 NGitLab.Mock.MergeRequest.MergeCommitSha.set -> void
 NGitLab.Mock.MergeRequest.MergedAt.get -> System.DateTimeOffset?
diff --git a/NGitLab.Tests/Docker/GitLabTestContext.cs b/NGitLab.Tests/Docker/GitLabTestContext.cs
index f5209495..9b20749c 100644
--- a/NGitLab.Tests/Docker/GitLabTestContext.cs
+++ b/NGitLab.Tests/Docker/GitLabTestContext.cs
@@ -269,6 +269,12 @@ public Group CreateSubgroup(long parentGroupId, string slug, string name = null,
         configure?.Invoke(mergeRequestCreate);
         var mr = client.GetMergeRequest(project.Id).Create(mergeRequestCreate);
 
+        // A merge request with a merge_after date more than a minute away will not become mergeable within the wait below.
+        if (mergeRequestCreate.MergeAfter?.ToUniversalTime() > DateTime.UtcNow.AddMinutes(1))
+        {
+            return (project, mr);
+        }
+
         // GitLab computes diff data and merge status asynchronously after MR creation.
         // Wait until the transient states resolve so callers can immediately query diffs or approvals.
         var mrClient = client.GetMergeRequest(project.Id);
diff --git a/NGitLab.Tests/MergeRequest/MergeRequestClientTests.cs b/NGitLab.Tests/MergeRequest/MergeRequestClientTests.cs
index ec9a050b..866a31ee 100644
--- a/NGitLab.Tests/MergeRequest/MergeRequestClientTests.cs
+++ b/NGitLab.Tests/MergeRequest/MergeRequestClientTests.cs
@@ -282,6 +282,35 @@ public async Task Test_cancel_merge_when_pipeline_succeeds()
         AcceptAndCancelMergeRequest(mergeRequestClient, mergeRequest);
     }
 
+    [Test]
+    [NGitLabRetry]
+    public async Task Test_create_merge_request_with_merge_after()
+    {
+        using var context = await GitLabTestContext.CreateAsync();
+        context.IgnoreTestIfGitLabVersionOutOfRange(VersionRange.Parse("[17.8,)"));
+        var mergeAfter = CreateMergeAfter();
+
+        var (_, mergeRequest) = await context.CreateMergeRequestAsync(mr => mr.MergeAfter = mergeAfter);
+
+        Assert.That(mergeRequest.MergeAfter?.ToUniversalTime(), Is.EqualTo(mergeAfter));
+    }
+
+    [Test]
+    [NGitLabRetry]
+    public async Task Test_update_merge_request_with_merge_after()
+    {
+        using var context = await GitLabTestContext.CreateAsync();
+        context.IgnoreTestIfGitLabVersionOutOfRange(VersionRange.Parse("[17.8,)"));
+        var (project, mergeRequest) = await context.CreateMergeRequestAsync();
+        var mergeRequestClient = context.Client.GetMergeRequest(project.Id);
+        var mergeAfter = CreateMergeAfter();
+
+        var updated = mergeRequestClient.Update(mergeRequest.Iid, new MergeRequestUpdate { MergeAfter = mergeAfter });
+
+        Assert.That(mergeRequest.MergeAfter, Is.Null);
+        Assert.That(updated.MergeAfter?.ToUniversalTime(), Is.EqualTo(mergeAfter));
+    }
+
     [Test]
     [NGitLabRetry]
     public async Task Test_merge_request_head_pipeline()
@@ -297,6 +326,13 @@ public async Task Test_merge_request_head_pipeline()
         Assert.That(mergeRequest.HeadPipeline?.ProjectId, Is.EqualTo(project.Id));
     }
 
+    private static DateTime CreateMergeAfter()
+    {
+        // GitLab returns the timestamp with millisecond precision. Use whole seconds so the value round-trips.
+        var inOneWeek = DateTime.UtcNow.AddDays(7);
+        return new DateTime(inOneWeek.Year, inOneWeek.Month, inOneWeek.Day, inOneWeek.Hour, inOneWeek.Minute, inOneWeek.Second, DateTimeKind.Utc);
+    }
+
     private static void ListMergeRequest(IMergeRequestClient mergeRequestClient, MergeRequest mergeRequest)
     {
         Assert.That(mergeRequestClient.All.Any(x => x.Id == mergeRequest.Id), Is.True, "Test 'All' accessor returns the merge request");
diff --git a/NGitLab/Models/MergeRequest.cs b/NGitLab/Models/MergeRequest.cs
index c63d7376..21d9982d 100644
--- a/NGitLab/Models/MergeRequest.cs
+++ b/NGitLab/Models/MergeRequest.cs
@@ -148,6 +148,9 @@ public class MergeRequest
     [JsonPropertyName("detailed_merge_status")]
     public DynamicEnum<DetailedMergeStatus> DetailedMergeStatus { get; set; }
 
+    [JsonPropertyName("merge_after")]
+    public DateTime? MergeAfter { get; set; }
+
     [JsonPropertyName("merge_error")]
     public string MergeError { get; set; }
 
diff --git a/NGitLab/Models/MergeRequestCreate.cs b/NGitLab/Models/MergeRequestCreate.cs
index 0fa39ecc..be2ecbed 100644
--- a/NGitLab/Models/MergeRequestCreate.cs
+++ b/NGitLab/Models/MergeRequestCreate.cs
@@ -1,4 +1,5 @@
-using System.Text.Json.Serialization;
+using System;
+using System.Text.Json.Serialization;
 
 namespace NGitLab.Models;
 
@@ -42,4 +43,7 @@ public class MergeRequestCreate
 
     [JsonPropertyName("allow_collaboration")]
     public bool? AllowCollaboration { get; set; }
+
+    [JsonPropertyName("merge_after")]
+    public DateTime? MergeAfter { get; set; }
 }
diff --git a/NGitLab/Models/MergeRequestUpdate.cs b/NGitLab/Models/MergeRequestUpdate.cs
index 1746b593..8ef11201 100644
--- a/NGitLab/Models/MergeRequestUpdate.cs
+++ b/NGitLab/Models/MergeRequestUpdate.cs
@@ -1,4 +1,5 @@
-using System.Text.Json.Serialization;
+using System;
+using System.Text.Json.Serialization;
 
 namespace NGitLab.Models;
 
@@ -51,6 +52,9 @@ public class MergeRequestUpdate
 
     [JsonPropertyName("squash_on_merge")]
     public bool? SquashOnMerge { get; set; }
+
+    [JsonPropertyName("merge_after")]
+    public DateTime? MergeAfter { get; set; }
 }
 
 public class MergeRequestUpdateState
diff --git a/NGitLab/PublicAPI/net10.0/PublicAPI.Unshipped.txt b/NGitLab/PublicAPI/net10.0/PublicAPI.Unshipped.txt
index 17cdfba0..627a604f 100644
--- a/NGitLab/PublicAPI/net10.0/PublicAPI.Unshipped.txt
+++ b/NGitLab/PublicAPI/net10.0/PublicAPI.Unshipped.txt
@@ -2892,6 +2892,8 @@ NGitLab.Models.MergeRequest.Iid.get -> long
 NGitLab.Models.MergeRequest.Iid.set -> void
 NGitLab.Models.MergeRequest.Labels.get -> string[]
 NGitLab.Models.MergeRequest.Labels.set -> void
+NGitLab.Models.MergeRequest.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequest.MergeAfter.set -> void
 NGitLab.Models.MergeRequest.MergeCommitSha.get -> string
 NGitLab.Models.MergeRequest.MergeCommitSha.set -> void
 NGitLab.Models.MergeRequest.MergedAt.get -> System.DateTime?
@@ -3058,6 +3060,8 @@ NGitLab.Models.MergeRequestCreate.Description.get -> string
 NGitLab.Models.MergeRequestCreate.Description.set -> void
 NGitLab.Models.MergeRequestCreate.Labels.get -> string
 NGitLab.Models.MergeRequestCreate.Labels.set -> void
+NGitLab.Models.MergeRequestCreate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestCreate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestCreate.MergeRequestCreate() -> void
 NGitLab.Models.MergeRequestCreate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestCreate.MilestoneId.set -> void
@@ -3177,6 +3181,8 @@ NGitLab.Models.MergeRequestUpdate.Description.get -> string
 NGitLab.Models.MergeRequestUpdate.Description.set -> void
 NGitLab.Models.MergeRequestUpdate.Labels.get -> string
 NGitLab.Models.MergeRequestUpdate.Labels.set -> void
+NGitLab.Models.MergeRequestUpdate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestUpdate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestUpdate.MergeRequestUpdate() -> void
 NGitLab.Models.MergeRequestUpdate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestUpdate.MilestoneId.set -> void
diff --git a/NGitLab/PublicAPI/net472/PublicAPI.Unshipped.txt b/NGitLab/PublicAPI/net472/PublicAPI.Unshipped.txt
index 84431238..3bfbea38 100644
--- a/NGitLab/PublicAPI/net472/PublicAPI.Unshipped.txt
+++ b/NGitLab/PublicAPI/net472/PublicAPI.Unshipped.txt
@@ -2893,6 +2893,8 @@ NGitLab.Models.MergeRequest.Iid.get -> long
 NGitLab.Models.MergeRequest.Iid.set -> void
 NGitLab.Models.MergeRequest.Labels.get -> string[]
 NGitLab.Models.MergeRequest.Labels.set -> void
+NGitLab.Models.MergeRequest.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequest.MergeAfter.set -> void
 NGitLab.Models.MergeRequest.MergeCommitSha.get -> string
 NGitLab.Models.MergeRequest.MergeCommitSha.set -> void
 NGitLab.Models.MergeRequest.MergedAt.get -> System.DateTime?
@@ -3059,6 +3061,8 @@ NGitLab.Models.MergeRequestCreate.Description.get -> string
 NGitLab.Models.MergeRequestCreate.Description.set -> void
 NGitLab.Models.MergeRequestCreate.Labels.get -> string
 NGitLab.Models.MergeRequestCreate.Labels.set -> void
+NGitLab.Models.MergeRequestCreate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestCreate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestCreate.MergeRequestCreate() -> void
 NGitLab.Models.MergeRequestCreate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestCreate.MilestoneId.set -> void
@@ -3178,6 +3182,8 @@ NGitLab.Models.MergeRequestUpdate.Description.get -> string
 NGitLab.Models.MergeRequestUpdate.Description.set -> void
 NGitLab.Models.MergeRequestUpdate.Labels.get -> string
 NGitLab.Models.MergeRequestUpdate.Labels.set -> void
+NGitLab.Models.MergeRequestUpdate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestUpdate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestUpdate.MergeRequestUpdate() -> void
 NGitLab.Models.MergeRequestUpdate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestUpdate.MilestoneId.set -> void
diff --git a/NGitLab/PublicAPI/net8.0/PublicAPI.Unshipped.txt b/NGitLab/PublicAPI/net8.0/PublicAPI.Unshipped.txt
index 17cdfba0..627a604f 100644
--- a/NGitLab/PublicAPI/net8.0/PublicAPI.Unshipped.txt
+++ b/NGitLab/PublicAPI/net8.0/PublicAPI.Unshipped.txt
@@ -2892,6 +2892,8 @@ NGitLab.Models.MergeRequest.Iid.get -> long
 NGitLab.Models.MergeRequest.Iid.set -> void
 NGitLab.Models.MergeRequest.Labels.get -> string[]
 NGitLab.Models.MergeRequest.Labels.set -> void
+NGitLab.Models.MergeRequest.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequest.MergeAfter.set -> void
 NGitLab.Models.MergeRequest.MergeCommitSha.get -> string
 NGitLab.Models.MergeRequest.MergeCommitSha.set -> void
 NGitLab.Models.MergeRequest.MergedAt.get -> System.DateTime?
@@ -3058,6 +3060,8 @@ NGitLab.Models.MergeRequestCreate.Description.get -> string
 NGitLab.Models.MergeRequestCreate.Description.set -> void
 NGitLab.Models.MergeRequestCreate.Labels.get -> string
 NGitLab.Models.MergeRequestCreate.Labels.set -> void
+NGitLab.Models.MergeRequestCreate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestCreate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestCreate.MergeRequestCreate() -> void
 NGitLab.Models.MergeRequestCreate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestCreate.MilestoneId.set -> void
@@ -3177,6 +3181,8 @@ NGitLab.Models.MergeRequestUpdate.Description.get -> string
 NGitLab.Models.MergeRequestUpdate.Description.set -> void
 NGitLab.Models.MergeRequestUpdate.Labels.get -> string
 NGitLab.Models.MergeRequestUpdate.Labels.set -> void
+NGitLab.Models.MergeRequestUpdate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestUpdate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestUpdate.MergeRequestUpdate() -> void
 NGitLab.Models.MergeRequestUpdate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestUpdate.MilestoneId.set -> void
diff --git a/NGitLab/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt b/NGitLab/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt
index 84431238..3bfbea38 100644
--- a/NGitLab/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt
+++ b/NGitLab/PublicAPI/netstandard2.0/PublicAPI.Unshipped.txt
@@ -2893,6 +2893,8 @@ NGitLab.Models.MergeRequest.Iid.get -> long
 NGitLab.Models.MergeRequest.Iid.set -> void
 NGitLab.Models.MergeRequest.Labels.get -> string[]
 NGitLab.Models.MergeRequest.Labels.set -> void
+NGitLab.Models.MergeRequest.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequest.MergeAfter.set -> void
 NGitLab.Models.MergeRequest.MergeCommitSha.get -> string
 NGitLab.Models.MergeRequest.MergeCommitSha.set -> void
 NGitLab.Models.MergeRequest.MergedAt.get -> System.DateTime?
@@ -3059,6 +3061,8 @@ NGitLab.Models.MergeRequestCreate.Description.get -> string
 NGitLab.Models.MergeRequestCreate.Description.set -> void
 NGitLab.Models.MergeRequestCreate.Labels.get -> string
 NGitLab.Models.MergeRequestCreate.Labels.set -> void
+NGitLab.Models.MergeRequestCreate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestCreate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestCreate.MergeRequestCreate() -> void
 NGitLab.Models.MergeRequestCreate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestCreate.MilestoneId.set -> void
@@ -3178,6 +3182,8 @@ NGitLab.Models.MergeRequestUpdate.Description.get -> string
 NGitLab.Models.MergeRequestUpdate.Description.set -> void
 NGitLab.Models.MergeRequestUpdate.Labels.get -> string
 NGitLab.Models.MergeRequestUpdate.Labels.set -> void
+NGitLab.Models.MergeRequestUpdate.MergeAfter.get -> System.DateTime?
+NGitLab.Models.MergeRequestUpdate.MergeAfter.set -> void
 NGitLab.Models.MergeRequestUpdate.MergeRequestUpdate() -> void
 NGitLab.Models.MergeRequestUpdate.MilestoneId.get -> long?
 NGitLab.Models.MergeRequestUpdate.MilestoneId.set -> void