# Upgrade Guide

## Upgrading To 8.0 From 7.0

### Minimum & Upgraded Versions

Commit: https://github.com/laravel/passport/commit/97e3026790d953d7a67fe487e30775cd995e93df

The minimum Laravel version is now v6.0 and the minimum PHP version is now 7.2. The underlying `league/oauth2-server` has also been updated to v8.

### Public Clients

PR: https://github.com/laravel/passport/pull/1065

Passport now supports public clients and PCKE. To leverage this feature, you should update the the `secret` column of the `oauth_clients` table to be `nullable`:

    Schema::table('oauth_clients', function (Blueprint $table) {
        $table->string('secret', 100)->nullable()->change();
    });

### Renderable Exceptions For OAuth Errors

PR: https://github.com/laravel/passport/pull/1066

OAuth exceptions can now be rendered. They will first be converted to Passport exceptions. If you are explicitly handling `League\OAuth2\Server\Exception\OAuthServerException` in your exception handler's report method you will now need to check for an instance of `Laravel\Passport\Exceptions\OAuthServerException` instead.

### Fixed Credential Checking

PR: https://github.com/laravel/passport/pull/1040

In the previous versions of Passport, you could pass tokens granted by a different client type to the `CheckClientCredential` and `CheckClientCredentialForAnyScope` middleware. This behavior has been corrected and an exception will be thrown if you attempt to pass a token generated by a different client type.