v1.0.12

Added OAuth2 client-credentials support via PayabliApiClient.withCredentials(clientId, clientSecret). The SDK handles the token exchange and refresh automatically:

PayabliApiClient client = PayabliApiClient
.withCredentials("...", "...")
.environment(Environment.SANDBOX)
.build();

The existing new PayabliApiClientBuilder().apiKey(...) builder flow still works unchanged — no action needed if you’re not switching auth methods. See the Java SDK guide and Authentication to compare both methods.