> ## Documentation Index
> Fetch the complete documentation index at: https://developer.oplog.one/llms.txt
> Use this file to discover all available pages before exploring further.

# Release Notes

> Track all updates, new features, and improvements to the OPLOG.ONE API platform

Track the evolution of OPLOG.ONE with our latest updates, new features, and platform improvements.

<Update label="June 2025">
  ### ✨ Added

  * Added `requestId` and `timestamp` fields to the root of all API error responses to improve traceability and debugging
  * Enhanced API documentation with interactive "Try it" functionality supporting cURL, Python, JavaScript, PHP, Go, and Java code examples

  ### 🛠️ Fixed

  * Investigated and fixed Error Enum Code list for consistency. You can see the updated `OmnitroErrorCode` list [here](https://oplog.mintlify.app/errors)

  ### 🔄 Changed

  * Removed obsolete `courierRequest` field from Returns API after comprehensive review
  * Disabled POST endpoint for Returns API - please use existing GET endpoints for return operations
  * Deprecated Bearer token authentication - please use StaticToken authentication method for all API requests

  ### 📘 Documentation

  * Launched comprehensive API documentation for OPLOG.ONE
  * Added detailed use case guides for Products, Sales Orders, Receiving Orders, and Returns
  * Introduced Status References for tracking order lifecycle
  * Added Authentication guide with OAuth 2.0 implementation details
</Update>

<Update label="May 2025">
  ### 🚀 New Features

  * Released Products API for comprehensive product catalog management
  * Introduced Sales Orders API with support for multiple payment methods and cargo types
  * Added Receiving Orders API with flexible transfer type configurations
  * Implemented Returns API for streamlined return processing

  ### 🛠 Improvements

  * Enhanced error response format with detailed validation messages
  * Added support for multiple currencies (ISO 4217 compliant)
  * Implemented comprehensive status tracking across all order types
</Update>

<Update label="April 2025">
  ### 🚀 New Features

  * Introduced OAuth 2.0 authentication with X-Tenant-Id and StaticToken
  * Added support for international orders with postal code validation
  * Implemented Value Added Services (VAS) including gift wrapping and document attachments

  ### 📘 Documentation

  * Created detailed API reference documentation
  * Added comprehensive error code reference with descriptions
  * Introduced quick start guide with common API scenarios
</Update>

<Update label="March 2025">
  ### 🚀 New Features

  * Released Cargo Carriers API for shipping partner management
  * Added support for multiple transfer types: CargoTransfer, PickupTransfer, and CarriageTransfer
  * Implemented real-time cargo carrier information updates

  ### 🛠 Improvements

  * Enhanced address validation for both domestic and international orders
  * Added support for corporate orders with tax information
  * Improved line item management with SKU-based product identification
</Update>

<Update label="February 2025">
  ### 🚀 New Features

  * Launched OPLOG.ONE API platform
  * Introduced comprehensive logistics and supply chain management capabilities
  * Added support for e-commerce and marketplace integrations

  ### 📘 Documentation

  * Created initial API documentation structure
  * Added integration guides for common business scenarios
  * Introduced API authentication and security best practices
</Update>