diff --git a/Pleroma.Test/Program.cs b/Pleroma.Test/Program.cs
index bbc5162..6ef2a42 100644
--- a/Pleroma.Test/Program.cs
+++ b/Pleroma.Test/Program.cs
@@ -15,9 +15,7 @@ static class Program
         static void PrintStatus(Status status)
         {
             Console.Write('\t');
-            Console.Write(status.CreatedAt.ToShortDateString());
-            Console.Write(' ');
-            Console.Write(status.CreatedAt.ToLongTimeString());
+            Console.Write(status.CreatedAt.ToString("dd/MM/yy HH:mm:ss"));
             Console.Write(' ');
             Console.WriteLine(status);
         }
diff --git a/Pleroma/Models/AccountField.cs b/Pleroma/Models/AccountField.cs
index 86c6f20..c3bedf2 100644
--- a/Pleroma/Models/AccountField.cs
+++ b/Pleroma/Models/AccountField.cs
@@ -8,7 +8,7 @@ public class AccountField
     [JsonPropertyName("value")]
     public string Value { get; set; } = null!;
 
-    public DateTime? VerifiedAt { get; set; }
+    public DateTimeOffset? VerifiedAt { get; set; }
 
     [JsonConstructor()]
     internal AccountField()
diff --git a/Pleroma/Models/Attachment.cs b/Pleroma/Models/Attachment.cs
index 3a4d20e..c939eac 100644
--- a/Pleroma/Models/Attachment.cs
+++ b/Pleroma/Models/Attachment.cs
@@ -54,16 +54,6 @@ public class Attachment
     internal Attachment()
     {
     }
-
-    /// <summary>
-    /// Downloads the attachment.
-    /// </summary>
-    public async Task<byte[]> Download()
-    {
-        using HttpClient client = new HttpClient();
-        HttpResponseMessage res = await client.GetAsync(URL);
-        return await res.Content.ReadAsByteArrayAsync();
-    }
 }
 
 [JsonConverter(typeof(EnumLowerCaseConverter<AttachmentType>))]
diff --git a/Pleroma/Models/Notification.cs b/Pleroma/Models/Notification.cs
index 4f6b795..4c650be 100644
--- a/Pleroma/Models/Notification.cs
+++ b/Pleroma/Models/Notification.cs
@@ -9,7 +9,7 @@ public class Notification : ASObject
     public Account Account { get; set; } = null!;
 
     [JsonPropertyName("created_at")]
-    public DateTime CreatedAt { get; set; }
+    public DateTimeOffset CreatedAt { get; set; }
 
     /// <summary>
     /// Group key shared by similar notifications
diff --git a/Pleroma/Models/Status.cs b/Pleroma/Models/Status.cs
index a9990ec..06d5d57 100644
--- a/Pleroma/Models/Status.cs
+++ b/Pleroma/Models/Status.cs
@@ -18,7 +18,7 @@ public class Status : ASObject
     /// The date when this status was created
     /// </summary>
     [JsonPropertyName("created_at")]
-    public DateTime CreatedAt { get; set; }
+    public DateTimeOffset CreatedAt { get; set; }
 
     /// <summary>
     /// Have you favourited this status?
diff --git a/Pleroma/Pleroma.cs b/Pleroma/Pleroma.cs
index 5284846..2a0cc0f 100644
--- a/Pleroma/Pleroma.cs
+++ b/Pleroma/Pleroma.cs
@@ -237,7 +237,7 @@ public class Pleroma
     public Task<Status> PostStatus(string? content = null,
                                    bool sensitive = false,
                                    int? expiresIn = null,
-                                   string? replyTo = null,
+                                   StatusID? replyTo = null,
                                    string? quoting = null,
                                    string? language = null,
                                    MediaID[]? attachments = null,
@@ -273,10 +273,10 @@ public class Pleroma
                 writer.WriteNumberValue(expiresIn.Value);
             }
 
-            if (replyTo != null)
+            if (replyTo.HasValue)
             {
                 writer.WritePropertyName("in_reply_to_id");
-                writer.WriteStringValue(replyTo);
+                writer.WriteStringValue(replyTo.Value.ID);
             }
 
             if (quoting != null)
@@ -615,6 +615,26 @@ public class Pleroma
         })))!;
     }
 
+    /// <summary>
+    /// Downloads an attachment.
+    /// </summary>
+    public async Task<byte[]> Download(Attachment attachment)
+    {
+        HttpResponseMessage res = await HttpClient.GetAsync(attachment.URL);
+        res.EnsureSuccessStatusCode();
+        return await res.Content.ReadAsByteArrayAsync();
+    }
+
+    /// <summary>
+    /// Downloads an attachment as a <see cref="Stream"/>.
+    /// </summary>
+    public async Task<Stream> DownloadStream(Attachment attachment)
+    {
+        HttpResponseMessage res = await HttpClient.GetAsync(attachment.URL);
+        res.EnsureSuccessStatusCode();
+        return await res.Content.ReadAsStreamAsync();
+    }
+
     /// <summary>
     /// Notifications concerning the user. This API returns Link headers containing links to the next/previous page. However, the links can also be constructed dynamically using query params and <c>id</c> values.
     /// </summary>
@@ -683,6 +703,25 @@ public class Pleroma
     /// <param name="notifications">Array of notification IDs to dismiss</param>
     public Task Dismiss(NotificationID[] notifications)
     {
+        if (notifications.Length == 0)
+            return Task.CompletedTask;
+
+        return Retry(() => new HttpRequestMessage(HttpMethod.Delete, $"/api/v1/notifications/destroy_multiple" + CreateQuery(addPair =>
+        {
+            foreach (NotificationID id in notifications)
+                addPair("ids[]", id.ID);
+        })));
+    }
+
+    /// <summary>
+    /// Clears multiple notifications from the server.
+    /// </summary>
+    /// <param name="notifications">Array of notifications to dismiss</param>
+    public Task Dismiss(Notification[] notifications)
+    {
+        if (notifications.Length == 0)
+            return Task.CompletedTask;
+
         return Retry(() => new HttpRequestMessage(HttpMethod.Delete, $"/api/v1/notifications/destroy_multiple" + CreateQuery(addPair =>
         {
             foreach (NotificationID id in notifications)