diff --git a/changelog/contracts.md b/changelog/contracts.md
index 3efa697409..1b785e05fe 100644
--- a/changelog/contracts.md
+++ b/changelog/contracts.md
@@ -2,6 +2,27 @@
 
 All notable changes to the contracts will be documented in this file.
 
+## 2021-02-06
+
+**Version 5.1** is scheduled for upgrade.
+
+### Added
+
+- `MintNFT`, `WithdrawNFT` operations, which enable native NFT support.
+- `Swap` operation, which depending on the implementation may serve either order book or atomic swaps functionality.
+- The security council, which is able to shorten the upgrade notice period. More on that
+  [here](https://medium.com/matter-labs/keeping-funds-safe-a-3-factor-approach-to-security-in-zksync-2-0-a70b0f53f360).
+- `RegeneisMultisig.sol` to handle submissions of the new root hash by the security council during the upgrade.
+- A special account with id `2**24 - 1`. It is used to ensure the correctness of the NFT data.
+
+### Changed
+
+- The maximum amount of tokens that can be used to pay transaction fees is increased to 1023.
+- The account tree depth for each account increased to `32`.
+- Due to the smart contract size limitations, `ZkSync.sol` was split into two parts: the original `ZkSync.sol` and the
+  `AdditionalZkSync.sol`, to which some functionality is delegated.
+- `ZkSyncNFTFactory.sol` which serves as a default NFT factory, where all the NFTs are withdrawn by default.
+
 ## 2021-25-02
 
 **Version 5** is scheduled for upgrade.
diff --git a/changelog/js-sdk.md b/changelog/js-sdk.md
index d051e30dba..35084d03a8 100644
--- a/changelog/js-sdk.md
+++ b/changelog/js-sdk.md
@@ -2,15 +2,16 @@
 
 All notable changes to `zksync.js` will be documented in this file.
 
-## Unreleased
+## Version 0.11.0
 
 ### Added
 
-### Changed
+- Methods for working with NFTs. You can read more [here](https://zksync.io/dev/nfts.html).
+- Methods for working with atomic swaps/limit orders. You can read more [here](https://zksync.io/dev/swaps.html).
 
-### Deprecated
+### Changed
 
-### Fixed
+- `zksync-crypto` to support atomic swaps/limit orders functionality.
 
 ## Version 0.10.9 (13.04.2021)