diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -27,4 +27,35 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Fixed
 - Fixed reentrancy guard problem: [#88](https://github.com/Brushfam/openbrush-contracts/pull/88)
-- Updated reentrancy example: [#108](https://github.com/Brushfam/openbrush-contracts/pull/108)
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+- Updated reentrancy example: [#108](https://github.com/Brushfam/openbrush-contracts/pull/108)
+
+## [v4.0.0-beta.1]
+## Changes
+
+### Added
+- Added new Governance feature with extensions: [#126](https://github.com/Brushfam/openbrush-contracts/pull/126) - was not under audit
+- Added standard interface detection implementation: [#112](https://github.com/Brushfam/openbrush-contracts/pull/112) - was not under audit
+- Added PSP22 Permit extension: [#109](https://github.com/Brushfam/openbrush-contracts/pull/109) - was not under audit
+- Crypto module with some useful methods for better DX: [#109](https://github.com/Brushfam/openbrush-contracts/pull/109) - was not under audit
+
+### Changes
+- Bumped ink! version to 4.3.0: [#129](https://github.com/Brushfam/openbrush-contracts/pull/129)
+
+## [v4.0.0]
+## Changes
+
+### Changed
+- [*BREAKING*] Separated `_before_token_transfer` and `_after_token_transfer` in PSP22 to a trait `PSP22Transfer` and added 
+different implementation on whether `Capped` extension is implemented: [#141](https://github.com/Brushfam/openbrush-contracts/pull/141)
+- [*BREAKING*] Removed `PSP22::approve` method, because it creates a double-spending issue. We recommend using `increase_allowance` and `decrease_allowance` instead:
+[#138](https://github.com/Brushfam/openbrush-contracts/pull/138)
+- [*BREAKING*] Changed errors to `isNotSet` from `isZeroAddress`: [#136](https://github.com/Brushfam/openbrush-contracts/pull/136)
+- Added verification for `PSP22Wrapper` for whether the account in `deposit_for` and `withdraw_to` is underlying wrapper: [#140](https://github.com/Brushfam/openbrush-contracts/pull/140)
+- Added `max_supply` internal method in `PSP22`, fixed the issue that amount can be calculated wrong way when using `Capped` and `FlashLender` together: [#142](https://github.com/Brushfam/openbrush-contracts/pull/142)
+- `PaymentSplitter` now emits `PaymentReceived` event in `receive` method: [#139](https://github.com/Brushfam/openbrush-contracts/pull/139)
+- `_release_all` method removed from `PaymentSplitter`, since it was considered error-prone and unnecessary: [#145](https://github.com/Brushfam/openbrush-contracts/pull/145)
+- Added `_flash_fee_receiver` method to `FlashLender`, fee is now sent to beneficiary instead of being burned: [#157](https://github.com/Brushfam/openbrush-contracts/pull/157)
+- Added `releasable` method to `PaymentSplitter`: [#146](https://github.com/Brushfam/openbrush-contracts/pull/146)
+- [*BREAKING*] Ownership now can't be transferred to `None`: [#137](https://github.com/Brushfam/openbrush-contracts/pull/137)
+- Fixed validation in `macro_definition`: [#144](https://github.com/Brushfam/openbrush-contracts/pull/144)
+- Use boolean values in `reentrancy_guard`: [#143](https://github.com/Brushfam/openbrush-contracts/pull/143)
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