STG101 - Delete Blob Conditional Tier

sdk/storage/azure-storage-blob/CHANGELOG.md

@@ -3,6 +3,7 @@
 ## 12.33.0-beta.2 (Unreleased)
 
 ### Features Added
+- Added support for `AccessTierIfModifiedSince` and `AccessTierIfUnmodifiedSince` to conditionally perform `BlobClient.delete` operations.
 
 ### Breaking Changes
 

sdk/storage/azure-storage-blob/src/main/java/com/azure/storage/blob/models/BlobRequestConditions.java

@@ -16,6 +16,8 @@
 @Fluent
 public class BlobRequestConditions extends BlobLeaseRequestConditions {
     private String leaseId;
+    private OffsetDateTime accessTierIfModifiedSince;
+    private OffsetDateTime accessTierIfUnmodifiedSince;
 
     /**
      * Creates a new instance of {@link BlobRequestConditions}.
@@ -104,4 +106,52 @@ public BlobRequestConditions setLeaseId(String leaseId) {
         this.leaseId = leaseId;
         return this;
     }
+
+    /**
+     * Gets the access-tier {@link OffsetDateTime} that the resource must have been modified since.
+     * <b> Currently, this is only supported for the Delete Blob operation. </b>
+     *
+     * @return The access-tier {@link OffsetDateTime} that the resource must have been modified since.
+     */
+    public OffsetDateTime getAccessTierIfModifiedSince() {
+        return accessTierIfModifiedSince;
+    }
+
+    /**
+     * Optionally limits requests to resources that have had their access-tier modified since the specified
+     * {@link OffsetDateTime}.
+     * <b> Currently, this is only supported for the Delete Blob operation. </b>
+     *
+     * @param accessTierIfModifiedSince The access-tier {@link OffsetDateTime} that the resource must have been modified
+     * since.
+     * @return The updated BlobRequestConditions object.
+     */
+    public BlobRequestConditions setAccessTierIfModifiedSince(OffsetDateTime accessTierIfModifiedSince) {
+        this.accessTierIfModifiedSince = accessTierIfModifiedSince;
+        return this;
+    }
+
+    /**
+     * Gets the access-tier {@link OffsetDateTime} that the resource must have remained unmodified since.
+     * <b> Currently, this is only supported for the Delete Blob operation. </b>
+     *
+     * @return The access-tier {@link OffsetDateTime} that the resource must have remained unmodified since.
+     */
+    public OffsetDateTime getAccessTierIfUnmodifiedSince() {
+        return accessTierIfUnmodifiedSince;
+    }
+
+    /**
+     * Optionally limits requests to resources that have not had their access-tier modified since the specified
+     * {@link OffsetDateTime}.
+     * <b> Currently, this is only supported for the Delete Blob operation. </b>
+     * 
+     * @param accessTierIfUnmodifiedSince The access-tier {@link OffsetDateTime} that the resource must have remained
+     * unmodified since.
+     * @return The updated BlobRequestConditions object.
+     */
+    public BlobRequestConditions setAccessTierIfUnmodifiedSince(OffsetDateTime accessTierIfUnmodifiedSince) {
+        this.accessTierIfUnmodifiedSince = accessTierIfUnmodifiedSince;
+        return this;
+    }
 }

sdk/storage/azure-storage-blob/src/main/java/com/azure/storage/blob/specialized/BlobAsyncClientBase.java

@@ -1642,7 +1642,9 @@ Mono<Response<Void>> deleteWithResponse(DeleteSnapshotsOptionType deleteBlobSnap
             .deleteNoCustomHeadersWithResponseAsync(containerName, blobName, snapshot, versionId, null,
                 requestConditions.getLeaseId(), deleteBlobSnapshotOptions, requestConditions.getIfModifiedSince(),
                 requestConditions.getIfUnmodifiedSince(), requestConditions.getIfMatch(),
-                requestConditions.getIfNoneMatch(), requestConditions.getTagsConditions(), null, null, context);
+                requestConditions.getIfNoneMatch(), requestConditions.getTagsConditions(), null, null,
+                requestConditions.getAccessTierIfModifiedSince(), requestConditions.getAccessTierIfUnmodifiedSince(),
+                context);
     }
 
     /**

sdk/storage/azure-storage-blob/src/main/java/com/azure/storage/blob/specialized/BlobClientBase.java

@@ -1624,7 +1624,9 @@ public Response<Void> deleteWithResponse(DeleteSnapshotsOptionType deleteBlobSna
                 finalRequestConditions.getLeaseId(), deleteBlobSnapshotOptions,
                 finalRequestConditions.getIfModifiedSince(), finalRequestConditions.getIfUnmodifiedSince(),
                 finalRequestConditions.getIfMatch(), finalRequestConditions.getIfNoneMatch(),
-                finalRequestConditions.getTagsConditions(), null, null, finalContext);
+                finalRequestConditions.getTagsConditions(), null, null,
+                finalRequestConditions.getAccessTierIfModifiedSince(),
+                finalRequestConditions.getAccessTierIfUnmodifiedSince(), finalContext);
 
         return sendRequest(operation, timeout, BlobStorageException.class);
     }

sdk/storage/azure-storage-blob/swagger/README.md

@@ -16,7 +16,7 @@ autorest
 ### Code generation settings
 ``` yaml
 use: '@autorest/[email protected]'
-input-file: https://raw.githubusercontent.com/Azure/azure-rest-api-specs/refs/heads/main/specification/storage/data-plane/Microsoft.BlobStorage/stable/2026-02-06/blob.json
+input-file: https://raw.githubusercontent.com/Azure/azure-rest-api-specs/933db48a0939e55518e7f3f442dd78ea66e3fef0/specification/storage/data-plane/Microsoft.BlobStorage/stable/2026-04-06/blob.json
 java: true
 output-folder: ../
 namespace: com.azure.storage.blob