Blob Versions: Using Cerulean you can now manage blob versions. Once versioning is enabled
on a storage account, you can list versions of a blob, view properties/metadata/tags of a version,
download/open/delete a specific version, promote a version to overwrite the base blob or create
a snapshot for a version.
Blob Tags: Using Cerulean you can now manage tags on a blob. Currently blob tags functionality is
in preview and you have to manually enable it on a storage account. Once tags are enabled, you can
add/edit/delete tags on a blob.
Shared Access Signature improvements: Cerulean now enables you to create access policies/shared access
signature with permissions for managing blob tags and blob versions.
Upload improvements: For storage accounts that support access tiers, you can set access tier of a blob
at the time of uploading. This enables you to directly upload a blob in archive or cool tier. You can
instruct Cerulean to calculate MD5 hash of a local file and set that as Content-MD5 property of that blob.
Copy improvements: For storage accounts that support access tiers, you can set access tier of a blob at the
time of copying. This enables you to copy a blob and set its access tier in a single operation.
Faster "archived" blobs retrieval: When rehydrating an archived blob (i.e. changing the access tier of an archived
blob to either hot or cool), you can set the rehydrate priority to "high" which will rehydrate the blob faster.
Faster deletes: Cerulean now makes use of batch functionality to delete blobs thus making blob delete operation
incredibly fast because a maximum of 250 blobs are deleted in a single request instead of one blob in a single request.
Faster access tier change: Cerulean now makes use of batch functionality to change access tier of blobs thus making the operation
incredibly fast because access tier of a maximum of 250 blobs are change in a single request instead of one blob in a single request.