Openapi® PHP SDK v1.3.0

Release 1.3.0 — Openapi® PHP SDK

The 1.3.0 release of the Openapi® PHP SDK introduces a redesigned transport layer, built-in environment support, and a cleaner class naming convention — making the SDK more composable, testable, and framework-friendly.

🔌 Pluggable HTTP Transport

• Introduced HttpTransportInterface — inject any HTTP client (Guzzle, PSR-18, Laravel HTTP) directly into Client.
• Added CurlTransport as the default implementation, extracted from Client to respect the single-responsibility principle.
• Full PSR-18 compatibility: psr/http-client is now a declared dependency.

🌿 Built-in DotEnv Support

• Added DotEnv loader for lightweight .env file parsing with no external dependencies.
• Added Bootstrap — automatically loaded via Composer's files autoload — for seamless environment bootstrapping in plain PHP projects.
• Framework-safe: does not override variables already set by Laravel, Symfony, or CI environments.

🧹 Cleaner Naming Convention

• Removed redundant Openapi prefix from all class and file names — the Openapi\ namespace already provides the context.
• Renamed Exception → ApiException to avoid shadowing PHP's built-in \Exception.
• OauthClient now supports environment variable fallback for credentials and OAuth URLs.

👥 Contributors

• Added full author attribution in composer.json — Lorenzo Paderi, Mario Ugurcu, Francesco Bianco, and Claude Code.
• Work from the upkeep branch has been properly integrated and credited.

A special thank you to Mario Ugurcu (@Seraphim200001) for contributing the transport injection architecture and the DotEnv support that form the core of this release. Your work made this possible.

🚀 Looking Ahead

Version 1.3.0 establishes the architectural foundation for future extensibility. Next milestones include middleware support, structured error responses, and a retry policy interface built on top of the new transport layer.