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Changelog

All notable changes to the Transmission library will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[Unreleased]

Added

  • Comprehensive documentation with practical examples
  • Complete API documentation for all core concepts
  • Step-by-step setup guide for Kotlin Multiplatform projects
  • Real-world examples using counter and components samples

Changed

  • Updated setup documentation to reflect Maven Central publication from version 1.6.0+
  • Improved testing documentation with correct TransmissionTest API
  • Enhanced documentation structure and navigation

[1.6.0] - 2025-05-16

Added

  • Kotlin Multiplatform Support: Complete migration to Kotlin Multiplatform
  • iOS target support with native compilation
  • Desktop (JVM) target support
  • Maven Central Publication: Now published to Maven Central instead of JitPack
  • New publication workflow with signing and verification
  • Convention plugins for build configuration management

Changed

  • Breaking: Migrated from Android-only to Kotlin Multiplatform
  • Breaking: Publication moved from JitPack to Maven Central
  • Breaking: Dependency coordinates changed to com.trendyol:transmission
  • Refactored counter sample to Compose Multiplatform
  • Updated build logic with new convention plugins
  • Improved project structure for multiplatform development

Removed

  • Legacy Android-only sample applications
  • JitPack publication support for new versions

Migration Guide

  • Update dependencies from com.github.Trendyol:transmission to com.trendyol:transmission
  • Remove JitPack repository if only using Transmission
  • For KMP projects, configure targets as needed (android, iosX64, iosArm64, iosSimulatorArm64, jvmDesktop)

[1.5.0] - 2025-03-24

Added

  • One-shot Payload Sending: New API for sending payloads without persistent subscriptions
  • Enhanced transmission processing capabilities
  • New experimental annotations for evolving APIs

Changed

  • Improved payload handling performance
  • Updated version numbering system

[1.4.2] - 2025-03-14

Added

  • Enhanced Testing Infrastructure: New TransmissionTest class replacing deprecated TestSuite
  • New test methods for checkpoint validation
  • Improved test assertion methods with better type safety
  • Additional transformer testing capabilities

Changed

  • Breaking: Deprecated TestSuite in favor of TransmissionTest
  • Updated testing API with fluent builder pattern
  • Improved test method naming and organization
  • Enhanced sample test implementations

Fixed

  • Test indentation and formatting issues
  • OutputTransformer test compatibility
  • Broadcast functionality in testing scenarios

[1.4.0] - 2025-02-25

Added

  • Transformer Lifecycle: onCleared() callback for cleanup operations
  • Handler Extension API: Ability to extend and override handler behavior
  • Stacked Lambda System: Advanced handler composition capabilities
  • Value Class Optimization: Converted Capacity to value class for better performance
  • Stream Extensions: New extension functions for data and effect streaming

Changed

  • Breaking: Refactored handler extension API
  • Breaking: Updated UpdateHandlerScope implementation
  • Improved router internals for better performance
  • Enhanced API naming conventions for handlers
  • Updated README with new features

Fixed

  • Removed redundant coroutine creation
  • Fixed lambda versioning issues
  • Improved memory management in handler chains

[1.3.0] - 2024-11-14

Added

  • Checkpoint API (Experimental): Advanced flow control with checkpoints
  • @ExperimentalTransmissionApi and @InternalTransmissionApi annotations
  • CheckpointTracker for managing checkpoint state
  • Checkpoint validation and frequency control
  • Enhanced Contract system with checkpoint support
  • Identity-based computation validation
  • UUID-based identifier generation

Changed

  • Breaking: Contract types converted to classes with internal constructors
  • Breaking: Updated dataHolder API to remove manual key assignment
  • Improved stability and thread safety
  • Updated Kotlin to 2.0.20
  • Enhanced Counter sample with better examples

Fixed

  • Removed buffer-related issues in broadcast system
  • Improved mutex locking in dataHolder operations
  • Fixed tryEmit/trySend calls replaced with suspending alternatives

[1.2.1] - Previous Release

Added

  • Core transmission framework
  • Basic transformer functionality
  • Router implementation
  • Initial testing support

Changed

  • API stabilization improvements
  • Performance optimizations

[1.0.x Series] - Legacy Releases

Multiple releases focusing on: - Core functionality development - API refinements - Bug fixes and stability improvements - Initial testing framework

[0.0.x Series] - Early Development

Early development releases with: - Initial concept implementation - Proof of concept features - Experimental APIs

Breaking Changes Summary

1.6.0

  • Publication: Moved from JitPack to Maven Central
  • Dependencies: Changed from com.github.Trendyol:transmission to com.trendyol:transmission
  • Platform: Migrated to Kotlin Multiplatform (supports Android, iOS, Desktop)

1.4.2

  • Testing: TestSuite deprecated in favor of TransmissionTest

1.4.0

  • Handlers: Handler extension API redesigned
  • Capacity: Converted to value class (source compatible)

1.3.0

  • Contracts: Contract types changed from interfaces to classes
  • DataHolder: Manual key assignment removed

Experimental Features

Some features are marked as experimental and may evolve:

  • Checkpoint System (@ExperimentalTransmissionApi): Advanced flow control
  • Handler Extensions: Dynamic handler modification
  • Advanced Transformer Communication: Complex inter-transformer patterns

Migration Support

For detailed migration guides between major versions, see: - Setup Guide for dependency updates - Testing Guide for test migration - Transformer Guide for API changes

Contributing

We welcome contributions! See our GitHub repository for: - Bug reports and feature requests - Pull request guidelines - Development setup instructions

This changelog reflects the actual development history. For the latest releases, check the GitHub releases page.