Changelog

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Overview

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Highlights

• Live Streaming — Stream directly to YouTube, Twitch, or custom RTMP endpoints from VR via the new LCKStreaming plugin
• Modular Streaming Architecture — ILCKStreamingFeature modular feature interface for streaming integration, discoverable via IModularFeatures
• Getting Started Wizard — Editor wizard guides first-time setup with audio plugin selection and configuration
• Improved Audio Quality — Per-source sample rate handling for correct resampling across all audio plugins
• Quest 2 Optimizations — Capped HD profile to 30 fps / 8 Mbps for reliable recording on Quest 2

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New Features

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LCK Core SDK

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LCKStreaming (New Plugin)

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LCKTablet

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LCKUI

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Audio Plugins

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Bug Fixes

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Breaking Changes

1. TSharedPtr → TSharedPtr<..., ESPMode::ThreadSafe> — All encoder and module shared pointers changed to thread-safe mode. Code holding TSharedPtr<ILCKEncoder> or TSharedPtr<ILCKEncoderFactory> must add ESPMode::ThreadSafe.
   // Before (v0.9.2)
   TSharedPtr<ILCKEncoderFactory> EncoderFactory;
   TSharedPtr<ILCKEncoder> Encoder;
   
   // After (v1.0)
   TSharedPtr<ILCKEncoderFactory, ESPMode::ThreadSafe> EncoderFactory;
   TSharedPtr<ILCKEncoder, ESPMode::ThreadSafe> Encoder;
   
2. FDelegateRenderAudio signature changed — Audio delegate gained a SampleRate parameter. Code binding to OnAudioDataDelegate must update the callback signature.
   // Before (v0.9.2)
   DECLARE_MULTICAST_DELEGATE_ThreeParams(FDelegateRenderAudio,
       TArrayView<const float>, int32/*Channels*/, ELCKAudioChannel);
   
   // After (v1.0)
   DECLARE_MULTICAST_DELEGATE_FourParams(FDelegateRenderAudio,
       TArrayView<const float>, int32/*Channels*/, int32/*SampleRate*/, ELCKAudioChannel);
   
3. FOnRecordStateChage → FOnRecordStateChange — Typo fix in delegate name.
   // Before (v0.9.2)
   DECLARE_MULTICAST_DELEGATE_OneParam(FOnRecordStateChage, ILCKRecordable*);
   
   // After (v1.0)
   DECLARE_MULTICAST_DELEGATE_OneParam(FOnRecordStateChange, ELCKRecordingState);
   
4. LCKService::StartRecording() return type changed — Changed from void to bool and made BlueprintCallable.
   // Before (v0.9.2)
   void StartRecording();
   
   // After (v1.0)
   UFUNCTION(BlueprintCallable, Category = "LCK Service")
   bool StartRecording();
   
5. ULCKNotificationController::WriteLine() removed — Use ShowNotification() instead.
   // Before (v0.9.2)
   void WriteLine(const FString& NewLine, float Duration = 3.0f);
   
   // After (v1.0) — removed, use:
   void ShowNotification(FLCKNotificationPtr Notification);
   
6. Telemetry structs simplified — FLCKGeoLocation, FLCKMetaData, FLCKTelemetryData, and FLCKTelemetryPayload were removed from LCKTelemetry.h. SendTelemetry(FLCKTelemetryEvent) and GetCurrentTrackingId() still work as before.
7. LCKCore Build.cs dependency changes — HTTP module removed from public dependencies. Json, JsonUtilities added as public. ToolMenus added for editor. If your module depended on HTTP being transitively available through LCKCore, add it to your own Build.cs.

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Migration Guide (v0.9.2 → v1.0)

1. Update shared pointer types — If you hold TSharedPtr<ILCKEncoder> or TSharedPtr<ILCKEncoderFactory>, add ESPMode::ThreadSafe as the second template parameter.
2. Update audio delegate bindings — OnAudioDataDelegate now has 4 parameters (added int32 SampleRate between Channels and SourceChannel). Update your callback signatures.
3. Update FOnRecordStateChage → FOnRecordStateChange — Fix the typo in any delegate bindings.
4. Update StartRecording() callers — Now returns bool. Update any code that called it as void.
5. Replace WriteLine() calls — ULCKNotificationController::WriteLine() was removed. Use ShowNotification() instead.
6. Check telemetry type usage — If you used FLCKGeoLocation, FLCKMetaData, FLCKTelemetryData, or FLCKTelemetryPayload, these structs were removed. Use FLCKTelemetryEvent directly.
7. Add HTTP module if needed — HTTP was removed from LCKCore’s public dependencies. If your module relied on it transitively, add "HTTP" to your own Build.cs.
8. Add LCKStreaming plugin dependency — If your project uses streaming, add the LCKStreaming plugin to your .uproject or .uplugin file.
9. Enable streaming in config — Set bEnableStreaming=true in DefaultGame.ini under [/Script/LCKCore.LCKDeveloperSettings] to package RTMP libraries.

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Platform Support

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Highlights

• PCVR Support — LCK is a single implementation for PCVR and Meta Quest Standalone
• Microphone Mute Control — New SetMicrophoneEnabled() API for runtime mic control
• Audio Config Validation — Real-time validation with editor warnings in Project Settings
• Permission Handling — Improved Android microphone permission flow with callbacks
• Developer Settings UI — Full settings panel in Project Settings with audio plugin configuration

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New Features

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LCK Core SDK

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LCKUI

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LCKTablet

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Audio Plugins

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Bug Fixes

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Improvements

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Breaking Changes

1. FLCKMetaData.Build — Changed from int32 to FString
   // Before (v0.9.1)
   int32 BuildNumber = MetaData.Build;
   
   // After (v0.9.2)
   FString BuildString = MetaData.Build;
   
2. Mic state type — Use ELCKMicState enum instead of bool
   // Before (v0.9.1)
   bool bMicEnabled = true;
   
   // After (v0.9.2)
   ELCKMicState MicState = ELCKMicState::On;
   // Values: On, Off, No_Access
   

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Code Reorganization

• Open Beta release