BuildPatchServices::EFeatureLevel | Unreal Engine 5.6 Documentation

API > API/Runtime > API/Runtime/BuildPatchServices

An enum type to describe supported features of a certain manifest.


Name	BuildPatchServices::EFeatureLevel
Type	enum
Header File	/Engine/Source/Runtime/Online/BuildPatchServices/Public/BuildPatchFeatureLevel.h
Include Path	#include "BuildPatchFeatureLevel.h"

Syntax

namespace BuildPatchServices  
{  
    enum EFeatureLevel  
    {  
        Original                                        = 0,  
        CustomFields,  
        StartStoringVersion,  
        DataFileRenames,  
        StoresIfChunkOrFileData,  
        StoresDataGroupNumbers,  
        ChunkCompressionSupport,  
        StoresPrerequisitesInfo,  
        StoresChunkFileSizes,  
        StoredAsCompressedUClass,  
        UNUSED_0,  
        UNUSED_1,  
        StoresChunkDataShaHashes,  
        StoresPrerequisiteIds,  
        StoredAsBinaryData,  
        VariableSizeChunksWithoutWindowSizeChunkInfo,  
        VariableSizeChunks,  
        UsesRuntimeGeneratedBuildId,  
        UsesBuildTimeGeneratedBuildId,  
        LatestPlusOne,  
        Latest                                          = (LatestPlusOne - 1),  
        LatestNoChunks                                  = StoresChunkFileSizes,  
        LatestJson                                      = StoresPrerequisiteIds,  
        FirstOptimisedDelta                             = UsesRuntimeGeneratedBuildId,  
        StoresUniqueBuildId                             = UsesRuntimeGeneratedBuildId,  
        BrokenJsonVersion                               = 255,  
        Invalid                                         = -1,  
    }  
}

namespace BuildPatchServices  
{  
    enum EFeatureLevel  
    {  
        Original                                        = 0,  
        CustomFields,  
        StartStoringVersion,  
        DataFileRenames,  
        StoresIfChunkOrFileData,  
        StoresDataGroupNumbers,  
        ChunkCompressionSupport,  
        StoresPrerequisitesInfo,  
        StoresChunkFileSizes,  
        StoredAsCompressedUClass,  
        UNUSED_0,  
        UNUSED_1,  
        StoresChunkDataShaHashes,  
        StoresPrerequisiteIds,  
        StoredAsBinaryData,  
        VariableSizeChunksWithoutWindowSizeChunkInfo,  
        VariableSizeChunks,  
        UsesRuntimeGeneratedBuildId,  
        UsesBuildTimeGeneratedBuildId,  
        LatestPlusOne,  
        Latest                                          = (LatestPlusOne - 1),  
        LatestNoChunks                                  = StoresChunkFileSizes,  
        LatestJson                                      = StoresPrerequisiteIds,  
        FirstOptimisedDelta                             = UsesRuntimeGeneratedBuildId,  
        StoresUniqueBuildId                             = UsesRuntimeGeneratedBuildId,  
        BrokenJsonVersion                               = 255,  
        Invalid                                         = -1,  
    }  
}

Values

Name	Remarks
Original	The original version.
CustomFields	Support for custom fields.
StartStoringVersion	Started storing the version number.
DataFileRenames	Made after data files where renamed to include the hash value, these chunks now go to ChunksV2.
StoresIfChunkOrFileData	Manifest stores whether build was constructed with chunk or file data.
StoresDataGroupNumbers	Manifest stores group number for each chunk/file data for reference so that external readers don't need to know how to calculate them.
ChunkCompressionSupport	Added support for chunk compression, these chunks now go to ChunksV3. NB: Not File Data Compression yet.
StoresPrerequisitesInfo	Manifest stores product prerequisites info.
StoresChunkFileSizes	Manifest stores chunk download sizes.
StoredAsCompressedUClass	Manifest can optionally be stored using UObject serialization and compressed.
UNUSED_0	These two features were removed and never used.
UNUSED_1
StoresChunkDataShaHashes	Manifest stores chunk data SHA1 hash to use in place of data compare, for faster generation.
StoresPrerequisiteIds	Manifest stores Prerequisite Ids.
StoredAsBinaryData	The first minimal binary format was added. UObject classes will no longer be saved out when binary selected.
VariableSizeChunksWithoutWindowSizeChunkInfo	Temporary level where manifest can reference chunks with dynamic window size, but did not serialize them. Chunks from here onwards are stored in ChunksV4.
VariableSizeChunks	Manifest can reference chunks with dynamic window size, and also serializes them.
UsesRuntimeGeneratedBuildId	Manifest uses a build id generated from its metadata.
UsesBuildTimeGeneratedBuildId	Manifest uses a build id generated unique at build time, and stored in manifest.
LatestPlusOne	!! Always after the latest version entry, signifies the latest version plus 1 to allow the following Latest alias.
Latest	An alias for the actual latest version value.
LatestNoChunks	An alias to provide the latest version of a manifest supported by file data (nochunks).
LatestJson	An alias to provide the latest version of a manifest supported by a json serialized format.
FirstOptimisedDelta	An alias to provide the first available version of optimised delta manifest saving.
StoresUniqueBuildId	More aliases, but this time for values that have been renamed.
BrokenJsonVersion	JSON manifests were stored with a version of 255 during a certain CL range due to a bug.
Invalid	This is for UObject default, so that we always serialize it.

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Syntax

Values