Add changelog

Author: OGPoyraz

packages/keyring-controller/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Added
+
+- Add `accountSupports7702` method and `KeyringController:accountSupports7702` messenger action to check whether an account's keyring supports EIP-7702 authorization signing ([#8388](https://github.com/MetaMask/core/pull/8388))
+
 ### Changed
 
 - Bump `@metamask/messenger` from `^1.0.0` to `^1.1.1` ([#8364](https://github.com/MetaMask/core/pull/8364), [#8373](https://github.com/MetaMask/core/pull/8373))

packages/transaction-pay-controller/CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Fix mUSD conversion for hardware wallets on EIP-7702 chains by gating relay and Across 7702 paths on `KeyringController:accountSupports7702` ([#8388](https://github.com/MetaMask/core/pull/8388))
+
 ## [19.0.3]
 
 ### Changed