Blob TypeSpec updates: Storage STG 100

specification/storage/Microsoft.BlobStorage/main.tsp

@@ -35,4 +35,8 @@ namespace Storage.Blob;
 enum Versions {
   @doc("The 2025-11-05 version of the Azure.Storage.Blob service.")
   v2025_11_05: "2025-11-05",
+
+  @doc("The 2026-02-06 version of the Azure.Storage.Blob service.")
+  @useDependency(Azure.Core.Versions.v1_0_Preview_2)
+  v2026_02_06: "2026-02-06",
 }

specification/storage/Microsoft.BlobStorage/models.tsp

@@ -6,6 +6,7 @@ import "@azure-tools/typespec-client-generator-core";
 
 using Azure.Core;
 using TypeSpec.Http;
+using TypeSpec.Versioning;
 using Azure.ClientGenerator.Core;
 
 namespace Storage.Blob;
@@ -2321,3 +2322,40 @@ alias PageWriteParameter<TPageWrite extends string> = {
   @header("x-ms-page-write")
   pageWrite: TPageWrite;
 };
+
+alias IfBlobMatchHeader = {
+  /** Specify an ETag value to operate only on blobs with a matching value. */
+  @added(Versions.v2026_02_06)
+  @header("x-ms-blob-if-match")
+  ifMatch?: string;
+};
+
+alias IfBlobModifiedSinceHeader = {
+  /** Specify this header value to operate only on a blob if it has been modified since the specified date/time. */
+  @added(Versions.v2026_02_06)
+  @header("x-ms-blob-if-modified-since")
+  @encode("rfc7231")
+  ifModifiedSince?: utcDateTime;
+};
+
+alias IfBlobNoneMatchHeader = {
+  /** Specify an ETag value to operate only on blobs without a matching value. */
+  @added(Versions.v2026_02_06)
+  @header("x-ms-blob-if-none-match")
+  ifNoneMatch?: string;
+};
+
+alias IfBlobUnmodifiedSinceHeader = {
+  /** Specify this header value to operate only on a blob if it has not been modified since the specified date/time. */
+  @added(Versions.v2026_02_06)
+  @header("x-ms-blob-if-unmodified-since")
+  @encode("rfc7231")
+  ifUnmodifiedSince?: utcDateTime;
+};
+
+alias ListBlobsStartFrom = {
+  /** Specifies the relative path to list paths from. For non-recursive list, only one entity level is supported; For recursive list, multiple entity levels are supported. (Inclusive) */
+  @added(Versions.v2026_02_06)
+  @query
+  startFrom?: string;
+};

specification/storage/Microsoft.BlobStorage/routes.tsp

@@ -594,6 +594,7 @@ namespace Storage.Blob {
         ...MaxResultsParameter;
         ...ListBlobsIncludeParameter;
         ...TimeoutParameter;
+        ...ListBlobsStartFrom;
       },
       {
         ...DateResponseHeader;
@@ -622,6 +623,7 @@ namespace Storage.Blob {
         ...MaxResultsParameter;
         ...ListBlobsIncludeParameter;
         ...TimeoutParameter;
+        ...ListBlobsStartFrom;
       },
       {
         ...DateResponseHeader;
@@ -1457,6 +1459,10 @@ namespace Storage.Blob {
           ...VersionIdParameter;
           ...LeaseIdOptionalParameter;
           ...IfTagsParameter;
+          ...IfBlobModifiedSinceHeader;
+          ...IfBlobUnmodifiedSinceHeader;
+          ...IfBlobMatchHeader;
+          ...IfBlobNoneMatchHeader;
         },
         {
           ...DateResponseHeader;
@@ -1485,6 +1491,11 @@ namespace Storage.Blob {
           /** The blob tags. */
           @body
           tags: BlobTags;
+
+          ...IfBlobModifiedSinceHeader;
+          ...IfBlobUnmodifiedSinceHeader;
+          ...IfBlobMatchHeader;
+          ...IfBlobNoneMatchHeader;
         },
         {
           @statusCode statusCode: 204;

specification/storage/data-plane/Microsoft.BlobStorage/readme.md

@@ -139,13 +139,22 @@ input-file:
   - stable/2025-11-05/generated_blob.json
 ```
 
+### Tag: package-2026-02-tsp
+
+These settings apply only when `--tag=package-2026-02-tsp` is specified on the command line.
+
+```yaml $(tag) == 'package-2026-02-tsp'
+input-file:
+  - stable/2026-02-06/generated_blob.json
+```
+
 ### Tag: package-2026-02
 
 These settings apply only when `--tag=package-2026-02` is specified on the command line.
 
-``` yaml $(tag) == 'package-2026-02'
+```yaml $(tag) == 'package-2026-02'
 input-file:
-- stable/2026-02-06/blob.json
+  - stable/2026-02-06/blob.json
 ```
 
 ### Suppression