> For the complete documentation index, see [llms.txt](https://niftsy-protocol-niftsy-1.gitbook.io/niftsy/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://niftsy-protocol-niftsy-1.gitbook.io/niftsy/tutorials/dapps/cross-nft/version-0/release-notes.md).

# Release notes

**Implemented functionality:**

* Freeze of network source of (w)NFT with a codeword («secret») and create an (w)NFT-key in the target network on its basis
* Transfer (w)NFT-keys to another wallet was implemented
* Unfreeze of NFT in source network after entering the codeword
* Smart-contracts do not store a codewords («secret»)