and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).

- **BREAKING:** Adds `@metamask/accounts-controller` ^8.0.0 and `@metamask/keyring-controller` ^12.0.0 as dependencies and peer dependencies. ([#3775](https://github.com/MetaMask/core/pull/3775/)).

- Adds `@metamask/keyring-api` ^3.0.0 as a devDependency. ([#3775](https://github.com/MetaMask/core/pull/3775/))

- **BREAKING:** `TokenDetectionController` is merged with `DetectTokensController` from the `metamask-extension` repo. ([#3775](https://github.com/MetaMask/core/pull/3775/))

- **BREAKING:** `TokenDetectionController` now resets its polling interval to the default value of 3 minutes when token detection is triggered by external controller events.

- **BREAKING:** `TokenDetectionController` cannot initiate polling or token detection if `KeyringController` state is locked. It also subscribes to the `KeyringController:lock` and `KeyringController:unlock` events.

- **BREAKING:** In Mainnet, even if the `PreferenceController`'s `useTokenDetection` option is set to false, automatic token detection is performed on the legacy token list (token data from the contract-metadata repo).

- `TokenDetectionController` newly subscribes to the `PreferencesController:stateChange`, `AccountsController:selectedAccountChange` events and allows the `PreferencesController:getState` messenger action.

- **BREAKING:** `TokenDetectionController` constructor no longer accepts options `onPreferencesStateChange`, `getPreferencesState`. ([#3775](https://github.com/MetaMask/core/pull/3775/))

- **BREAKING:** `TokenDetectionController` no longer allows the `NetworkController:stateChange` event. The `NetworkController:networkDidChange` event can be used instead. ([#3775](https://github.com/MetaMask/core/pull/3775/))