Delete Blob Conditional Tier 101

sdk/storage/Azure.Storage.Blobs/api/Azure.Storage.Blobs.net8.0.cs

@@ -1024,6 +1024,8 @@ protected BlobQueryTextOptions() { }
     public partial class BlobRequestConditions : Azure.Storage.Blobs.Models.BlobLeaseRequestConditions
     {
         public BlobRequestConditions() { }
+        public System.DateTimeOffset? AccessTierIfModifiedSince { get { throw null; } set { } }
+        public System.DateTimeOffset? AccessTierIfUnmodifiedSince { get { throw null; } set { } }
         public string LeaseId { get { throw null; } set { } }
         public override string ToString() { throw null; }
     }

sdk/storage/Azure.Storage.Blobs/api/Azure.Storage.Blobs.netstandard2.0.cs

@@ -1024,6 +1024,8 @@ protected BlobQueryTextOptions() { }
     public partial class BlobRequestConditions : Azure.Storage.Blobs.Models.BlobLeaseRequestConditions
     {
         public BlobRequestConditions() { }
+        public System.DateTimeOffset? AccessTierIfModifiedSince { get { throw null; } set { } }
+        public System.DateTimeOffset? AccessTierIfUnmodifiedSince { get { throw null; } set { } }
         public string LeaseId { get { throw null; } set { } }
         public override string ToString() { throw null; }
     }

sdk/storage/Azure.Storage.Blobs/api/Azure.Storage.Blobs.netstandard2.1.cs

@@ -1024,6 +1024,8 @@ protected BlobQueryTextOptions() { }
     public partial class BlobRequestConditions : Azure.Storage.Blobs.Models.BlobLeaseRequestConditions
     {
         public BlobRequestConditions() { }
+        public System.DateTimeOffset? AccessTierIfModifiedSince { get { throw null; } set { } }
+        public System.DateTimeOffset? AccessTierIfUnmodifiedSince { get { throw null; } set { } }
         public string LeaseId { get { throw null; } set { } }
         public override string ToString() { throw null; }
     }

sdk/storage/Azure.Storage.Blobs/assets.json

@@ -2,5 +2,5 @@
   "AssetsRepo": "Azure/azure-sdk-assets",
   "AssetsRepoPrefixPath": "net",
   "TagPrefix": "net/storage/Azure.Storage.Blobs",
-  "Tag": "net/storage/Azure.Storage.Blobs_6b5ddc8447"
+  "Tag": "net/storage/Azure.Storage.Blobs_81d74b8ce9"
 }

sdk/storage/Azure.Storage.Blobs/src/BlobBaseClient.cs

@@ -4676,6 +4676,8 @@ private async Task<Response> DeleteInternal(
                             ifMatch: conditions?.IfMatch?.ToString(),
                             ifNoneMatch: conditions?.IfNoneMatch?.ToString(),
                             ifTags: conditions?.TagConditions,
+                            accessTierIfModifiedSince: conditions?.AccessTierIfModifiedSince,
+                            accessTierIfUnmodifiedSince: conditions?.AccessTierIfUnmodifiedSince,
                             cancellationToken: cancellationToken)
                             .ConfigureAwait(false);
                     }
@@ -4689,6 +4691,8 @@ private async Task<Response> DeleteInternal(
                             ifMatch: conditions?.IfMatch?.ToString(),
                             ifNoneMatch: conditions?.IfNoneMatch?.ToString(),
                             ifTags: conditions?.TagConditions,
+                            accessTierIfModifiedSince: conditions?.AccessTierIfModifiedSince,
+                            accessTierIfUnmodifiedSince: conditions?.AccessTierIfUnmodifiedSince,
                             cancellationToken: cancellationToken);
                     }
 

sdk/storage/Azure.Storage.Blobs/src/Models/BlobRequestConditions.cs

@@ -20,6 +20,18 @@ public class BlobRequestConditions : BlobLeaseRequestConditions
         /// </summary>
         public string LeaseId { get; set; }
 
+        /// <summary>
+        /// Specify this header value to operate only on a blob if the access-tier has been modified since the specified date/time.
+        /// Note: If this is specified, AccessTierIfUnmodifiedSince cannot be specified.
+        /// </summary>
+        public DateTimeOffset? AccessTierIfModifiedSince { get; set; }
+
+        /// <summary>
+        /// Specify this header value to operate only on a blob if the access-tier has not been modified since the specified date/time.
+        /// Note: If this is specified, AccessTierIfModifiedSince cannot be specified.
+        /// </summary>
+        public DateTimeOffset? AccessTierIfUnmodifiedSince { get; set; }
+
         /// <summary>
         /// Default constructor.
         /// </summary>
@@ -31,6 +43,8 @@ private BlobRequestConditions(BlobRequestConditions deepCopySource) : base(deepC
         {
             Argument.AssertNotNull(deepCopySource, nameof(deepCopySource));
             LeaseId = deepCopySource.LeaseId;
+            AccessTierIfModifiedSince = deepCopySource.AccessTierIfModifiedSince;
+            AccessTierIfUnmodifiedSince = deepCopySource.AccessTierIfUnmodifiedSince;
         }
 
         /// <summary>
@@ -112,6 +126,16 @@ internal virtual void AddConditions(StringBuilder conditions)
             {
                 conditions.Append(nameof(TagConditions)).Append('=').Append(TagConditions).Append(';');
             }
+
+            if (AccessTierIfModifiedSince != null)
+            {
+                conditions.Append(nameof(AccessTierIfModifiedSince)).Append('=').Append(AccessTierIfModifiedSince).Append(';');
+            }
+
+            if (AccessTierIfUnmodifiedSince != null)
+            {
+                conditions.Append(nameof(AccessTierIfUnmodifiedSince)).Append('=').Append(AccessTierIfUnmodifiedSince).Append(';');
+            }
         }
     }
 }

sdk/storage/Azure.Storage.Blobs/src/autorest.md

@@ -4,7 +4,7 @@ Run `dotnet build /t:GenerateCode` to generate code.
 
 ``` yaml
 input-file:
-    - https://raw.githubusercontent.com/Azure/azure-rest-api-specs/b6472ffd34d5d4a155101b41b4eb1f356abff600/specification/storage/data-plane/Microsoft.BlobStorage/stable/2026-02-06/blob.json
+    - https://raw.githubusercontent.com/Azure/azure-rest-api-specs/933db48a0939e55518e7f3f442dd78ea66e3fef0/specification/storage/data-plane/Microsoft.BlobStorage/stable/2026-04-06/blob.json
 generation1-convenience-client: true
 # https://github.com/Azure/autorest/issues/4075
 skip-semantics-validation: true