The ability to append to a block already existed with block blobs, which are a bag of data blocks and an ordered list of block identifiers: you could just create a new block, then commit a new list with its identifier at the end.
The real benefit of the new append blob is that you have a one-request append (instead of read list, upload block, commit list).
Also, append blobs (like block blobs) are limited to 50000 append operations.
The real benefit of the new append blob is that you have a one-request append (instead of read list, upload block, commit list).
Also, append blobs (like block blobs) are limited to 50000 append operations.