v0.9.0

0.9.0 (2026-11-02)

Changed

• Breaking: maniSkeleton_BlendPoses refuses a threshold below
  FLT_MIN. The threshold must be at least FLT_MIN (2^-126) and at
  most 1. A subnormal threshold, which 0.8.0 accepted and which could
  blend translations and scales to infinity or NaN, now returns
  mani_errorInvalid and leaves the output pose as it was. Graphs blend
  at MANI_BLEND_THRESHOLD (1e-5) and are not affected
  (#216).

Fixed

• Sampling a clip between two rotation samples in opposite hemispheres
  could give the identity rotation. A clip file may hold such samples,
  for example (1, 0, 0, 2^-80) and (-1, 0, 2^-80, 0); halfway between
  them, the interpolated rotation is too short for its squared length to
  be a normal binary32. It is now scaled by a power of two before it is
  normalized, so it keeps its direction. The builder keeps consecutive
  samples in one hemisphere, so built clips do not reach this case
  (#211).
• The skinning jobs gave a zero normal or tangent for a direction that
  had not collapsed when the palette's scale was far from 1: a uniform
  scale of about 2^-40 or 2^40 for normals, and 2^-70 or 2^70 for
  tangents. They now keep its direction. Only a zero direction, or one
  that is not finite, still comes out zero
  (#214).

Results change only for the inputs above, which gave the identity or a
zero direction before. Every other pose, sample, skinned vertex, file
byte and format version is the same, and no pinned hash moves. As with
every release before 1.0.0, a graph instance, spring state or trainer
checkpoint saved by 0.8.0 is refused with mani_errorVersion: keep
assets, not saved states, across the upgrade.

v0.8.0

0.8.0 (2026-10-31)

Changed

• Breaking: kinds, modes and choices are int32_t, and flag sets have
  uint32_t typedefs. All 33 kind, mode and choice typedefs, such as
  maniLoopPolicy, are int32_t; a negative value is refused like one
  past the last value. New flag-set typedefs are maniGraphSyncFlags,
  maniGraphClipFlags, maniRootAxes and maniMatchEntryFlags, and the
  fields that hold them take them, as does maniClipSource.loop, now a
  maniLoopPolicy. Rename MANI_MATCH_LOOP, MANI_MATCH_NO_JUMP and
  MANI_MATCH_MIRRORED to maniMatchEntryLoop, maniMatchEntryNoJump
  and maniMatchEntryMirrored. maniMorphTargets_GetAttribute returns
  -1 past the count, where it returned UINT32_MAX. Code that keeps a
  kind in a uint32_t variable or compares it with an unsigned value
  updates its types
  (#199).
• Breaking: two names follow the family's naming rules.
  maniLearnedTrainerReport.iteration is iterationCount, and
  maniRootMoveIdentity is maniMakeRootMoveIdentity
  (#198).
• Breaking: the CPU checks return bool, and maniHash64 takes an
  int64_t count. maniIsCpuBackendSupported and maniCheckCpu
  return bool instead of an int32_t 1 or 0, so a caller comparing
  the result with 1 tests it as a bool. maniHash64 hashes any byte
  count up to INT64_MAX; pass the count without narrowing it. Hash
  values are unchanged
  (#176).
• Breaking: a refused call or a "no" clears its outputs. A call on a
  builder, a glTF or FBX document or a trainer clears its sizes, counts,
  reports, structs and handles before any check, so a failed call never
  leaves an earlier call's value to be read as its answer.
  maniBuilder_CopyBuilt, maniBuilder_CopySkeletonOrder,
  maniGltf_GetMorphWeights, maniFbx_GetMorphWeights and
  maniLearnedTrainer_SaveCheckpoint also zero the caller's array up to
  its capacity; a short skeleton order is no longer filled as far as it
  goes. A too-small buffer still reports the size or count it needed.
  maniBuildGltfClip and maniBuildFbxClip write boundOut only when
  the clip builds. maniClip_GetRootMotionSource and
  maniInfluences_GetCenter clear their output when they return false,
  and the name getters of learned models and motion databases clear
  lengthOut when they return NULL. The headers say what each output
  holds after a failure
  (#165,
  #174).
• Breaking: a call refused as busy leaves its outputs. A builder or
  trainer call that its own allocator or task hook made is refused with
  mani_errorBusy and writes none of its outputs, since they may be the
  ones the call in progress is filling. maniOpenGltf and
  maniOpenFbx still set their handle to NULL
  (#173).
• Breaking: more calls back in from host code are refused as busy.
  maniGltf_SupplyBuffer, maniGltf_ReadSprings and
  maniGltf_ReadRagdoll return mani_errorBusy when called from the
  builder's allocator. maniLearnedTrainer_SaveCheckpoint and
  maniBuildLearnedModelFromTrainer return it when called from the
  trainer's allocator or task hooks. While a model is built from a
  trainer, maniLearnedTrainer_Train,
  maniLearnedTrainer_RestoreCheckpoint and
  maniDestroyLearnedTrainer on that trainer return it too. Each
  refusal counts one misuse
  (#187,
  #197).
• The headers say which outputs may be their input:
  maniBlendRootMotion's moveOut may be one of moves,
  maniLearnedModel_Project's stateOut may be query, and
  maniMorphTargets_ComputeTargetWeights' targetWeightsOut may be
  channelWeights
  (#195).

Fixed

• maniMorphTargets_ComputeTargetWeights gave wrong weights when its
  output was its own channel weights. It now computes them in place with
  the same bits as apart
  (#193).
• maniRetargetMap_RetargetPose gave a wrong pose when the target pose
  was the source pose, or shared memory with it. It now refuses any
  overlap of the two poses with mani_errorInvalid and writes nothing
  (#194).
• Destroying a builder or a trainer, or closing a glTF or FBX document,
  let the host's free hook call back into the object: a hook could
  build on a builder being destroyed, free it twice, or read a closing
  document's freed names. Every call from those frees is now refused
  with mani_errorBusy, and a closing document reads as empty
  (#187).
• Host code running while a model was built from a trainer could
  destroy or retrain the trainer under the build, which then read freed
  memory. The trainer is now marked busy for the whole build
  (#197).

Poses, samples, file bytes and format versions do not change. As with
every release before 1.0.0, a graph instance, spring state or trainer
checkpoint saved by 0.7.0 is refused with mani_errorVersion: keep
assets, not saved states, across the upgrade.

v0.7.0

0.7.0 (2026-10-29)

Changed

• Breaking: every call is named by the Maul family's naming rule. A
  call on one object is named maniObject_Verb: a getter
  maniObject_GetThing, a predicate maniObject_IsThing. The object is
  the library object the call takes first, such as a clip, a pose, a
  skeleton, a graph instance, a builder or a glTF document, even where
  the call only reads it: maniSampleClip is maniClip_Sample,
  maniClipDuration is maniClip_GetDuration, maniPoseIsDifference
  is maniPose_IsDifference and maniBlendPoses is
  maniSkeleton_BlendPoses. Creation, destruction and calls with no
  object keep a verb first: every maniOpen..., maniInit...,
  maniCreate... and maniBuild... keeps its name, and the importers'
  builds take that shape (maniGltfBuildClip is maniBuildGltfClip).
  The misuse counts are maniBuilder_GetMisuse and
  maniLearnedTrainer_GetMisuse, maniResultName is
  maniGetResultName, the CPU check is maniIsCpuBackendSupported, and
  the task hook types end in Function. Math on plain values keeps its
  name (maniRootMoveIdentity, maniComposeRootMotion,
  maniDecomposeAffine, maniHash64). Rename every call in the table
  below; the parameters stay the same, except for maniPose_AddLayers
  (#156).
• Breaking: maniPose_AddLayers takes the pose first. A pose a call
  changes in place is its object, so maniAddPoses(skeleton, pose, layers, count) is maniPose_AddLayers(pose, skeleton, layers, count). Swap the first two arguments; a compiler refuses or warns
  about the old order, since the two pointers have different types. The
  IK solvers already took the pose first and keep their order as
  maniPose_SolveTwoBone and the others
  (#156).
• The user guides and the API reference use the new names
  (#156).

Poses, samples and file bytes do not change; only the names do. As
with every release before 1.0.0, a graph instance, spring state or
trainer checkpoint saved by 0.6.0 is refused with mani_errorVersion:
keep assets, not saved states, across the upgrade.

Before	After
maniResultName	maniGetResultName
maniTaskFn	maniTaskFunction
maniEnqueueTaskFn	maniEnqueueTaskFunction
maniFinishTaskFn	maniFinishTaskFunction
maniPoseDifference	maniSkeleton_ComputePoseDifference
maniBlendPoses	maniSkeleton_BlendPoses
maniBuildMask	maniSkeleton_BuildMask
maniAddPoses	maniPose_AddLayers
maniBodyIkScratchSize	maniSkeleton_GetBodyIkScratchSize
maniSolveBodyXpbd	maniPose_SolveBodyXpbd
maniSolveBodySdls	maniPose_SolveBodySdls
maniBuilderMisuses	maniBuilder_GetMisuse
maniMeasureClip	maniBuilder_MeasureClip
maniCopyBuilt	maniBuilder_CopyBuilt
maniCopySkeletonOrder	maniBuilder_CopySkeletonOrder
maniClipCompressed	maniClip_IsCompressed
maniClipDuration	maniClip_GetDuration
maniClipSampleRate	maniClip_GetSampleRate
maniClipSampleCount	maniClip_GetSampleCount
maniClipLoopPolicy	maniClip_GetLoopPolicy
maniClipAdditiveBasis	maniClip_GetAdditiveBasis
maniClipIdentity	maniClip_GetIdentity
maniClipSkeletonIdentity	maniClip_GetSkeletonIdentity
maniSampleClip	maniClip_Sample
maniClipFloatTrackCount	maniClip_GetFloatTrackCount
maniClipFloatTrackName	maniClip_GetFloatTrackName
maniSampleClipBones	maniClip_SampleBones
maniClipCursorSize	maniClip_GetCursorSize
maniClipCursorCompactSize	maniClip_GetCursorCompactSize
maniSampleClipCursor	maniClipCursor_Sample
maniSampleClipFloatsCursor	maniClipCursor_SampleFloats
maniClipFindFloatTrack	maniClip_FindFloatTrack
maniSampleClipFloats	maniClip_SampleFloats
maniClipDiscreteTrackCount	maniClip_GetDiscreteTrackCount
maniClipDiscreteTrackName	maniClip_GetDiscreteTrackName
maniClipFindDiscreteTrack	maniClip_FindDiscreteTrack
maniClipDiscreteValue	maniClip_GetDiscreteValue
maniClipEventCount	maniClip_GetEventCount
maniClipEventAt	maniClip_GetEvent
maniClipEventRange	maniClip_GetEventRange
maniClipMarkerCount	maniClip_GetMarkerCount
maniClipMarkerAt	maniClip_GetMarker
maniGraphIdentity	maniGraph_GetIdentity
maniGraphSkeletonIdentity	maniGraph_GetSkeletonIdentity
maniGraphNodeCount	maniGraph_GetNodeCount
maniGraphParameterCount	maniGraph_GetParameterCount
maniGraphFindParameter	maniGraph_FindParameter
maniGraphParameterTypeOf	maniGraph_GetParameterType
maniGraphParameterName	maniGraph_GetParameterName
maniGraphClipCount	maniGraph_GetClipCount
maniGraphClipIdentity	maniGraph_GetClipIdentity
maniGraphClipName	maniGraph_GetClipName
maniGraphDatabaseCount	maniGraph_GetDatabaseCount
maniGraphDatabaseIdentity	maniGraph_GetDatabaseIdentity
maniGraphDatabaseName	maniGraph_GetDatabaseName
maniGraphModelCount	maniGraph_GetModelCount
maniGraphModelIdentity	maniGraph_GetModelIdentity
maniGraphModelName	maniGraph_GetModelName
maniGraphSpringSetCount	maniGraph_GetSpringSetCount
maniGraphSpringSetIdentity	maniGraph_GetSpringSetIdentity
maniGraphSpringSetName	maniGraph_GetSpringSetName
maniGraphRetargetMapCount	maniGraph_GetRetargetMapCount
maniGraphRetargetMapIdentity	maniGraph_GetRetargetMapIdentity
maniGraphMirrorMapIdentity	maniGraph_GetMirrorMapIdentity
maniGraphRetargetMapSourceIdentity	maniGraph_GetRetargetMapSourceIdentity
maniGraphClipRetargetMap	maniGraph_GetClipRetargetMap
maniGraphNodeKindOf	maniGraph_GetNodeKind
maniGraphNodeInputCount	maniGraph_GetNodeInputCount
maniGraphNodeInput	maniGraph_GetNodeInput
maniGraphOutputNode	maniGraph_GetOutputNode
maniGraphNodeSourcePlace	maniGraph_GetNodeSourcePlace
maniGraphBindingSize	maniGraph_GetBindingSize
maniGraphInstanceSize	maniGraphBinding_GetInstanceSize
maniSetGraphParameter	maniGraphInstance_SetParameter
maniSetGraphPose	maniGraphInstance_SetPose
maniGetGraphPose	maniGraphInstance_GetPose
maniGetGraphParameter	maniGraphInstance_GetParameter
maniInspectGraphNode	maniGraphInstance_InspectNode
maniSaveGraphInstance	maniGraphInstance_Save
maniRestoreGraphInstance	maniGraphInstance_Restore
maniUpdateGraph	maniGraphInstance_Update
maniGraphScratchSize	maniGraphBinding_GetScratchSize
maniEvaluateGraph	maniGraphInstance_Evaluate
maniGraphSubsetSize	maniGraphBinding_GetSubsetSize
maniGraphSubsetBones	maniGraphSubset_GetBones
maniEvaluateGraphSubset	maniGraphInstance_EvaluateSubset
maniSolveTwoBone	maniPose_SolveTwoBone
maniSolveAim	maniPose_SolveAim
maniSolveCcd	maniPose_SolveCcd
maniSolveFabrik	maniPose_SolveFabrik
maniGltfBufferCount	maniGltf_GetBufferCount
maniGltfBufferUri	maniGltf_GetBufferUri
maniGltfSupplyBuffer	maniGltf_SupplyBuffer
maniGltfSkeletonCount	maniGltf_GetSkeletonCount
maniGltfSkinCount	maniGltf_GetSkinCount
maniGltfSkinSkeleton	maniGltf_GetSkinSkeleton
maniGltfNodeCount	maniGltf_GetNodeCount
maniGltfBuildSkeleton	maniBuildGltfSkeleton
maniGltfBuildNodeSkeleton	maniBuildGltfNodeSkeleton
maniGltfSkeletonPlacement	maniGltf_GetSkeletonPlacement
maniGltfBuildSkin	maniBuildGltfSkin
maniGltfNodeBoneName	maniGltf_GetNodeBoneName
maniGltfRenamedCount	maniGltf_GetRenamedCount
maniGltfRenamedNode	maniGltf_GetRenamedNode
maniGltfAnimationCount	maniGltf_GetAnimationCount
maniGltfAnimationName	maniGltf_GetAnimationName
maniGltfBuildClip	maniBuildGltfClip
maniGltfReadSprings	maniGltf_ReadSprings
maniGltfReadRagdoll	maniGltf_ReadRagdoll
maniGltfMeshCount	maniGltf_GetMeshCount
maniGltfPrimitiveCount	maniGltf_GetPrimitiveCount
maniGltfPrimitiveTargetCount	maniGltf_GetPrimitiveTargetCount
maniGltfNodeMesh	maniGltf_GetNodeMesh
maniGltfNodeSkin	maniGltf_GetNodeSkin
maniGltfMorphWeights	maniGltf_GetMorphWeights
maniGltfBuildInfluences	maniBuildGltfInfluences
maniGltfBuildMorphTargets	maniBuildGltfMorphTargets
maniFbxVersion	maniFbx_GetVersion
maniFbxModelCount	maniFbx_GetModelCount
maniFbxModelBoneName	maniFbx_GetModelBoneName
maniFbxRenamedCount	maniFbx_GetRenamedCount
maniFbxRenamedModel	maniFbx_GetRenamedModel
maniFbxSkeletonCount	maniFbx_GetSkeletonCount
maniFbxSkinCount	maniFbx_GetSkinCount
maniFbxSkinSkeleton	maniFbx_GetSkinSkeleton
maniFbxSkinModel	maniFbx_GetSkinModel
maniFbxReadSettings	maniFbx_ReadSettings
maniFbxBuildSkeleton	maniBuildFbxSkeleton
maniFbxBuildModelSkeleton	maniBuildFbxModelSkeleton
maniFbxSkeletonPlacement	maniFbx_GetSkeletonPlacement
maniFbxBuildSkin	maniBuildFbxSkin
maniFbxSkinMethod	maniFbx_GetSkinMethod
maniFbxBuildInfluences	maniBuildFbxInfluences
maniFbxMorphCount	maniFbx_GetMorphCount
maniFbxMorphModel	maniFbx_GetMorphModel
maniFbxMorphTargetCount	maniFbx_GetMorphTargetCount
maniFbxBuildMorphTargets	maniBuildFbxMorphTargets
`maniFbxMorphWeig...

v0.6.0

0.6.0 (2026-10-29)

Changed

• Breaking: a saved state is read only by the release that wrote
  it. A saved graph instance and a saved spring state start with the
  Maul family's 16-byte state prefix (magic, MANI_ABI_VERSION, format
  version, header size), so their headers are 32 bytes and every saved
  state's bytes change. maniRestoreGraphInstance,
  maniRestoreSpringState and maniRestoreLearnedCheckpoint refuse a
  state written by a release of another ABI version with
  mani_errorVersion: before 1.0.0 that is any other release, from
  1.0.0 another minor release. A state saved by 0.5.0 or earlier is
  refused. Keep assets, not saved states, across an upgrade. Poses,
  samples and file bytes do not change
  (#134).
• Breaking: each save call reports the saved size.
  maniSaveGraphInstance, maniSaveSpringState and
  maniSaveLearnedCheckpoint take a sizeOut after the capacity, and a
  NULL buffer with capacity 0 measures. maniGraphStateSize,
  maniSpringSavedSize and maniLearnedCheckpointSize are removed:
  call the save with a NULL buffer instead
  (#129).
• Breaking: every call that fills an array takes its capacity and
  reports the count. maniMotionDatabaseFeatures,
  maniMotionDatabaseNormalization, maniLearnedModelNormalization,
  maniMorphTargetWeights and maniLearnedProject take a capacity and
  a countOut after the array; maniGltfMorphWeights and
  maniFbxMorphWeights take a capacity in place of the exact count, and
  a countOut; maniRagdollBodiesFromPose, maniRagdollJointTargets
  and maniBuildMask take a countOut after the capacity.
  maniLearnedOutput gains floatTrackCapacity and eventCapacity
  after its arrays. A NULL array with capacity 0 measures
  (#133).
• Breaking: name lengths are size_t. Every name getter (the
  skeleton's bones, a clip's tracks, the graph's slots and parameters, a
  motion database's channels, a learned model's tracks and events, morph
  channels and targets, a spring set's springs, and the glTF and FBX
  importers' names) reports a length through size_t*, and every name
  length a public struct carries is size_t, so a name read from one
  call passes into a source unchanged. A builder refuses a name longer
  than the new MANI_MAX_NAME_BYTES (2^31 - 1 bytes) with
  mani_errorLimit, at the reason and item it gives that name
  otherwise; before, a morph channel name past it was refused with
  mani_errorInvalid, and a graph event name past it was hashed as if
  empty
  (#135,
  #138).
• Breaking: the graph's retargeting maps are named as such.
  maniGraphMapCount, maniGraphMapIdentity,
  maniGraphMapSourceIdentity and maniGraphClipMap are
  maniGraphRetargetMapCount, maniGraphRetargetMapIdentity,
  maniGraphRetargetMapSourceIdentity and maniGraphClipRetargetMap;
  MANI_MAX_GRAPH_MAPS is MANI_MAX_GRAPH_RETARGET_MAPS;
  maniGraphClipSource.map is retargetMap, and maniGraphAssets.maps
  and mapCount are retargetMaps and retargetMapCount
  (#136).
• Every builder's reference names the MANI_MAX_NAME_BYTES refusal, and
  the getting-started guide gives the bound as an example of a fixed one
  (#155).

Fixed

• The motion database builder no longer writes past its names.
  Channels may name one track, and their names' total was kept in 32
  bits: two channels naming one track of 2^31 + 1 bytes wrapped it, and
  copying the names wrote past the block it sized. Names past 4 GiB in
  all are refused with mani_errorInvalid and maniBuildReasonCount,
  before any name is read, and where size_t has 32 bits, sections past
  what one allocation holds are refused with mani_errorCapacity
  (#143).
• The mirror map builder sizes its working memory in 64 bits. Where
  size_t has 32 bits (WebAssembly), listed names totalling 4 GiB wrapped
  the room for their partners, which were then written past it; such a
  source is refused with mani_errorCapacity
  (#142).
• The graph and mirror map builders refuse names past their files'
  32-bit offsets. Names or partners past 4 GiB in all were laid out
  with wrapped offsets, so the file built pointed at other bytes; they
  are refused with mani_errorInvalid and maniBuildReasonCount, and
  the mirror map's sections past size_t with mani_errorCapacity
  (#144,
  #151).
• An imported name past 4 GiB is refused, not cut short. The glTF
  and FBX importers cut a name's decoded length to 32 bits, handing the
  builder the first bytes of the real name; the whole name now reaches
  the builder, which refuses it with mani_errorLimit
  (#153).

v0.5.0

0.5.0 (2026-10-28)

Changed

• Breaking: every file kind's layout and format version change, and
  an opener reads only its own version. The reserved words are gone
  from the files: the container header is 48 bytes, not 64, and the
  clip, retargeting map, influences, learned model, learned checkpoint,
  spring set, ragdoll profile and mirror map lose their zero words.
  Every kind's format version goes up by one: skeleton 2, clip 4, graph
  7, retargeting map 3, skin 2, influences 2, morph targets 2, motion
  database 4, learned model 2, learned checkpoint 2, spring set 3,
  ragdoll profile 2, mirror map 3. An opener now refuses any format
  version but its own with mani_errorVersion, an earlier one included;
  it used to accept an earlier version and read it with the current
  layout. Build every stored file again from its source. Poses, samples
  and other outputs do not change; only hashes of file bytes move
  (#113).
• Breaking: results take the Maul family's values.
  mani_errorVersion is -7 (was -4) and mani_errorFormat is -8 (was
  -3). mani_errorState is removed: a call from an object's own host
  code (its allocator or task hooks) is refused with the new
  mani_errorBusy (-10) in its place, and still counts one misuse. Code
  that compares results by name only renames mani_errorState to
  mani_errorBusy
  (#115).
• Breaking: a fixed bound passed returns mani_errorLimit (-9). An
  argument, or a builder's or the trainer's source, past a bound the
  library publishes returns mani_errorLimit in place of
  mani_errorInvalid, with the same reason and item. This covers the
  aim, CCD, FABRIK and full-body IK solvers, the motion database search,
  and the skeleton, skin, influences, clip, morph targets, spring set,
  retargeting map, motion database, learned model, trainer and graph
  builders. A bound checked while opening a file is still
  mani_errorFormat, and a range of a parameter's meaning (a weight in
  [0, 1], a cone up to pi) is still mani_errorInvalid. Full-body IK
  scratch that is too small returns mani_errorCapacity, not
  mani_errorInvalid
  (#117).
• Breaking: the bound constants are named MANI_MAX_*.
  MANI_AIM_MAX_BONES is MANI_MAX_AIM_BONES, MANI_IK_CHAIN_MAX_BONES
  is MANI_MAX_IK_CHAIN_BONES, MANI_IK_MAX_ITERATIONS is
  MANI_MAX_IK_ITERATIONS, MANI_SPRING_MAX_RATE is
  MANI_MAX_SPRING_RATE, MANI_MORPH_MAX_ATTRIBUTES is
  MANI_MAX_MORPH_ATTRIBUTES, and the MANI_BODY_IK_MAX_*,
  MANI_MATCH_MAX_*, MANI_LEARNED_MAX_* and MANI_GRAPH_MAX_* names
  are MANI_MAX_BODY_IK_*, MANI_MAX_MATCH_*, MANI_MAX_LEARNED_* and
  MANI_MAX_GRAPH_*. A name that keeps the old form (MANI_AIM_MAX_CONE,
  MANI_SPRING_MAX_STEPS, MANI_GRAPH_LEARNED_MAX_STEPS) is a range or
  an internal cap, not a bound refused with mani_errorLimit
  (#117).
• Breaking: public structs have no reserved field. The field is
  removed from every public struct, and builders no longer refuse a
  source for a nonzero one. Remove it from initializers.
  maniFileResult is {result, tag, offset}: tag names the section
  the first wrong byte lies in, 0 in the header and table, so positional
  initializers take the tag second
  (#109).
• Breaking: a root graph's slots are checked against the root's own
  lists. maniBuildGraph refuses, with maniBuildReasonNode at the
  node's place, a root node that names a clip, sync group, database,
  model or spring set slot past the root's own list. In a graph with a
  subgraph such a node used to build with the subgraph's slot of that
  number: with 1 clip in the root and 1 in the subgraph, a root clip
  node naming slot 1 played the subgraph's clip. Only a host's own
  maniGraphSource structs reach this; the JSON form resolves each name
  within its own graph. Every other graph builds to the same bytes. To
  migrate, list in the root every asset and sync group its nodes name
  (#93).
• MANI_MAX_INFLUENCES (64 weighted influences on a vertex) and
  MANI_MAX_GRAPH_DEPTH (16 levels of subgraphs) are public
  (#117).
• On WebAssembly, the public calls no longer go through the
  floating-point environment's out-of-line entries, which have nothing
  to switch there, so the static library is about 14.7 KB smaller.
  Results do not change
  (#101).
• The user guide's getting started page explains mani_errorLimit,
  mani_errorBusy and the one format version a release reads, and its
  examples drop the reserved field and use the new constant names.

Fixed

• The FBX importer bounds a file's property count. A file with 2^32 - 1
  properties or more wrapped the count, and the importer wrote past the
  property array it had allocated from it. Such a file is now refused
  at the property past the bound; every file under it reads as before
  (#105).
• A motion database file whose entry is too long for a frame count and
  stores 0xFFFFFFFF as its count is refused at that entry's count. It
  was still refused, but at a later, wrong place. Valid databases open
  and build as before
  (#107).

v0.4.0

0.4.0 (2026-10-25)

Changed

• Breaking: a subgraph's lists and slots are checked like the
  root's. maniBuildGraph refuses with maniBuildReasonNode, at the
  node's place, a node inside a subgraph that names a clip, sync group,
  database, model or spring set slot past the subgraph's own list. Such
  a graph used to build when the root had a slot of that number, which
  the node then named: with 2 clips in the subgraph and 9 in the root,
  a clip node naming slot 3 played the root's clip 3. It also refuses
  with maniBuildReasonCount a subgraph with a list whose count is not
  zero and whose pointer is NULL; its clip, sync group, database, model
  and spring set lists used to be read through that pointer when a node
  named one of their slots. Only a host's own maniGraphSource structs
  reach either case; the JSON form resolves and checks its lists. Every
  other graph builds to the same bytes. To migrate, list in each
  subgraph every asset and sync group its nodes name
  (#77).
• On 32-bit x86 the library is built with SSE2 math
  (-msse2 -mfpmath=sse), so it needs a processor with SSE2, and every
  build now leaves trapping math at the compiler's default, from the
  family's compiler flags. 64-bit builds' tests and pinned hashes pass
  unchanged
  (#73).

Fixed

• maniBuildGraph refuses a subgraph's sync group whose name is NULL
  with maniBuildReasonCount at item 0, before anything is laid out, as
  it refuses a subgraph's list that is not given. A root's own nameless
  group is still refused by the check with the sync group list's Name
  reason. Only a host's own maniGraphSource structs reach this; the
  JSON form always gives a name. Every graph that built before builds to
  the same bytes
  (#81).

v0.3.0

0.3.0 (2026-10-25)

Changed

• Breaking: a graph's time scales are bounded. On any path from the
  output, the product of the time scales' sizes must be at most
  MANI_GRAPH_MAX_TIME_FACTOR (1e6), which is far past any playback
  rate a graph needs. A scale that reads a parameter counts at the
  larger size of the parameter's bounds, and a time scale may read only
  a parameter with bounds. Scales on parallel branches never multiply.
  maniBuildGraph refuses a source past either rule with
  maniBuildReasonScalar, and maniOpenGraph refuses such a file with
  mani_errorFormat. Each node record now holds its time factor, so
  the graph format goes from 5 to 6, and maniOpenGraph refuses an
  earlier format with mani_errorVersion. To migrate, give bounds to
  each parameter a time scale reads, and build every graph file again.
  Results do not change for any graph still taken.
  (#66)

Fixed

• A clip node's step that is not finite moves nothing, and the marker
  walk's count is bounded by two loops of markers. Results do not
  change for steps shorter than about 2^53 clip lengths.
  (#64)
• A graph's binary32 timers saturate at FLT_MAX: the fade time of a
  machine and of a one-shot, and an inertialize node's step and elapsed
  time. Every timer value below FLT_MAX gives the same bits as
  before.
  (#67)

v0.2.1

0.2.1 (2026-10-24)

Changed

• The runtime's core (sampling, blending, the model pass, skeletons and
  root motion) is about 1.0 KB smaller at -O2 with GCC: 68,562 bytes,
  against ozz-animation's 69,698. The skeleton's opener and the file
  checks are compiled for size under GCC and Clang. With GCC, opening a
  skeleton takes about 7% more instructions and opening a compressed
  clip about 9% more. Opening a full clip or a motion database does not
  change, and neither does any call made every frame. Results do not
  change.
  (#29)

Fixed

• The host's allocator and task hooks run in the host's own
  floating-point setting, like the rest of the host's code. In 0.2.0
  they ran in the library's setting while a public call was in
  progress.
  (#27)

v0.2.0

0.2.0 (2026-10-24)

Changed

• Breaking: motion matching searches a motion database through an
  exact k-d tree, in place of bounds over runs of frames. Every search
  returns the same frame and cost as before. On large databases a search
  takes far fewer instructions: about 6 times fewer at 100,000 frames
  and up to 16 times fewer at 300,000 frames with the default leaf. On
  small databases with many features (around 5,000 frames and 45
  features) it can be slightly slower. The index takes about 49 bytes a
  frame at the default leaf, up from about 17.
  The motion database format version is 3, and
  maniOpenMotionDatabase refuses any other format version with
  mani_errorVersion. Build databases again from their sources, along
  with the graphs that name them, since a database's identity changes.
  A learned trainer's checkpoint does not resume against a rebuilt
  database.
  maniMotionDatabaseSource gains leafFrames (8, 16 or 32 frames a
  leaf, 0 for 16) and a reserved word that must be 0, so positional
  initializers must name them.
  (#24)

Fixed

• A host that runs its threads with flush-to-zero, denormals-are-zero
  or another rounding mode now gets the same bits as every other host.
  Every public call that computes switches to the library's
  floating-point setting and restores the host's on return, and so do
  the learned trainer's tasks on the host's worker threads. Results in
  the default setting do not change.
  (#26)

v0.1.0

0.1.0 (2026-10-24)

Changed

• Compressed clips keep each kind of sub-track together and decode
  several sub-tracks at once: sampling at a random time takes about 28%
  fewer instructions and a forward cursor about 15% fewer, and poses and
  float tracks are the same bits as before.
  The clip format version is 3, and maniOpenClip refuses a clip of
  any other format version, compressed or full precision, with
  mani_errorVersion. Build stored clips again from their sources, or
  compress them again from full-precision clips made with this release.

Fixed

• A learned motion matching node whose model gives a value past the
  float range, or whose root velocity moves past it over the step, no
  longer passes it on: maniUpdateGraph, maniEvaluateGraph and
  maniEvaluateGraphSubset complete the call with valid, finite
  outputs and return mani_errorFormat, and maniLearnedStep,
  maniLearnedProject and maniLearnedDecompress return
  mani_errorFormat instead of success. maniGraphNodeView's reserved
  word is now failed.