Specification API Description Version Status
AtomAtomA generic value container and several data types.2.2Stable
Buf SizeBuf SizeAccess to, and restrictions on, buffer sizes.1.4Stable
Data AccessData AccessProvides access to LV2_Descriptor::extension_data().1.6Stable
Dynamic ManifestDynamic ManifestSupport for dynamic data generation.1.6Stable
EventEventA port-based real-time generic event interface.1.12Deprecated
Instance AccessInstance AccessProvides access to the LV2_Handle of a plugin.1.6Stable
LogLogA feature for writing log messages.2.4Stable
LV2LV2An open and extensible audio plugin standard16.0Stable
MIDIMIDIA normalised definition of raw MIDI.1.10Stable
MorphMorphPorts that can dynamically change type.1.0Stable
OptionsOptionsInstantiation time options.1.4Stable
ParametersParametersCommon parameters for audio processing.1.4Stable
PatchPatchMessages for accessing and manipulating properties.2.6Stable
Port GroupsPort GroupsMulti-channel groups of LV2 ports.1.2Stable
Port PropertiesPort PropertiesVarious port properties.1.2Stable
PresetsPresetsPresets for LV2 plugins.2.8Stable
Resize PortResize PortDynamically sized LV2 port buffers.1.0Stable
StateStateAn interface for LV2 plugins to save and restore state.2.4Stable
TimeTimeProperties for describing time.1.6Stable
UIUILV2 plugin UIs of any type.2.20Stable
UnitsUnitsUnits for LV2 values.5.12Stable
URI MapURI MapA feature for mapping URIs to integers.1.6Deprecated
URIDURIDFeatures for mapping URIs to and from integers.1.4Stable
WorkerWorkerSupport for a non-realtime plugin worker method.1.2Stable