update changelog (#612)

Author: cyjseagull

Changelog.md

@@ -32,6 +32,40 @@
 - 兼容java-sdk v3.x的历史版本
 - 支持[3.0.0-rc4](https://github.com/FISCO-BCOS/FISCO-BCOS/releases/tag/v3.0.0-rc4)版本
 
+----
+
+Please read documentation of Java SDK v3.x.
+
+* English User Handbook：Working in progress...
+* [Chinese User Handbook](https://fisco-bcos-doc.readthedocs.io/zh_CN/latest/docs/develop/sdk/java_sdk/index.html)
+
+### Added
+
+* Added `TableCRUDService` to adapt the interface of CRUD Table of FISCO BCOS v3.0.0-rc4
+* `AuthManger`
+   * Add consensus node changes and system configuration changes to the governance contract system, upgrade calculation logic of governance contract, etc.
+   * Added contract freeze/unfreeze contract interface
+   * Added interface for creating proposals and modifying contract ACL status
+   * Added interface to get proposals in batches
+   * Added event listener interface for proposal execution result
+  
+### Changed
+
+* Use the cryptographic library `webank-blockchain-java-crypto` instead of `key-mini-toolkit`
+* Upgrade `bcos-sdk-jni` to `3.0.0-rc4`
+
+### Fixed
+
+* Fix bugs related to contract encoding and decoding
+* Fix the encoding bug of ReceiptParser for the getting return value of precompiled contracts
+* Increase single test coverage and fix unreasonable codes
+
+### Compatibility Notes
+
+- Not compatible with FISCO BCOS version 2.0+
+- Compatible with the historical version of java-sdk v3.x
+- Support [3.0.0-rc4](https://github.com/FISCO-BCOS/FISCO-BCOS/releases/tag/v3.0.0-rc4)
+
 
 ## v3.0.0-rc3
 (2022-03-31)