The token responses was improved with new properties compliant with the OAuth 2.0 specification. Properties from the response accessToken, saasToken, expiresIn, refreshToken, refreshTokenExpiresIn are now deprecated in favor of the new properties (access_token, saas_token, expires_in, refresh_token, refresh_token_expires_in, token_type).
All deprecations will be removed on 2025-11-13. From now, use the new token properties.