LCK Unreal Changelog - LCK Documentation

v0.9.2

2 February 2026

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

Feature	Description
Audio Config Validation	`ValidateAudioConfig()` method with FMOD > Wwise > UnrealAudio priority
Build Info API	`GetLoadedAudioPlugins()`, `GetBuildInfoDescription()` with dynamic build number
Microphone Mute Control	`SetMicrophoneEnabled()`, `IsMicrophoneEnabled()` for runtime mic control
Developer Settings UI	Full settings panel in Project Settings with audio plugin checkboxes
Voice Chat Audio Source	`FLCKAudioSourceVoiceChat` struct for Vivox integration
Plugin Detection	Improved detection via IPluginManager with dependency checks
Settings Categories	Organized settings with headers, tooltips, and category grouping
Audio Buffer Cleanup	Clear previously buffered audio on state change

Feature	Description
ELCKMicState Enum	Three-state: `On`, `Off`, `No_Access` for permission handling
Audio Level Indicator	Real-time microphone level display on recording button
Demo Dashboard	`LCKDemoUIBoard` with FOV, quality, orientation, mic controls
JSON State Persistence	Replaced USaveGame with JSON for tablet state

Feature	Description
Android Permission Handling	`RequestMicAccess()` with proper callback flow
Mic State Management	`ToggleMicState()` with `No_Access` state support
Recording State Manager	Mic level reading integrated into RecorderController
Developer Settings Integration	Uses `ULCKDeveloperSettings` for camera modes and profiles
Data Model Delegates	Added delegates for state change notifications
JSON Data Persistence	Save/load tablet state as JSON with platform paths
Mic Audio Level API	Read mic audio level via ULCKService

Plugin	Changes
LCKVivox	SDK settings binding, microphone output fix
LCKOboe	SDK settings binding for StartCapture
LCKWwise	SDK settings binding, documentation
LCKFMOD	Capture fix, SDK settings binding, documentation

Fix	Platform	Description
Photo capture not triggering	All	Fixed TSharedPtr notification handling
TabletDataModel null crash	All	Use `NewObject` in BeginPlay instead of `CreateDefaultSubobject`
Settings not restoring	All	Removed forced defaults on initialization
Notification callbacks	All	Execute callback per queued notification
SetupBindingToDataModel null	All	Added null guard check

Improvement	Description
Cleaned Constants	Consolidated constants across LCKUI and LCKTablet modules
Camera Modes Moved	Camera modes moved from LCKUI to LCKTablet for better modularity
JSON Helper Moved	JSON utilities centralized in LCKTablet
Plugin Icons	Added icons for LCKUI and LCKTablet plugins
Audio Sub-Levels	Added audio sub-levels for middleware variants

FLCKMetaData.Build - Changed from int32 to FString

// Before (v0.9.1)
int32 BuildNumber = MetaData.Build;

// After (v0.9.2)
FString BuildString = MetaData.Build;

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

Several components were moved between modules for better organization:

Component	From	To
Camera modes (`ELCKCameraMode`)	LCKUI	LCKTablet
JSON helper utilities	LCKUI	LCKTablet
Tablet data model	LCKUI	LCKTablet
Tablet UI components	LCKUI	LCKTablet

If you were importing these from LCKUI, update your includes to reference LCKTablet instead.

v0.9.1

16 December 2025