The team of Elrond Network is steadily improving, tweaking and tuning their protocol implementation.
Here come a change may important for other builders on Elrond blockchain.
With the version on Elrond-go v1.2.40 register a NFT brand aka. NFT collection there are four smart contract result instead of one before. When builders are querying the smart contract result of issueNonFungible transaction why need to filter on the smart contract result returning the new registered token identifier in this format: “ok@ + <token identifier in hexadecimal encoding>”
Elrond is developing and improving their protocol in a spectacular way and speed. You can get a short summary of their work in the Elrond Network Announcement Telegram Channel on the “Weekly summary” posts under: weekly #elrondtech.
We hope to help you as a builder with short posts like this to improve your product.