v0.13.0

0.13.0 (2026-11-02)

Changed

• Breaking: five names after the final shape review. Each keeps
  its value, type and meaning; rename your uses as below. Neither
  binding exposes any of them.

  0.12.0	0.13.0
  m3_voxelShape	m3_voxelChunkShape
  m3Vehicle_GetCompression	m3Vehicle_GetWheelCompression
  m3SoftBody_AnchorToSoft	m3SoftBody_AnchorToSoftBody
  m3DrivetrainDef.autoShift	enableAutoShift
  m3DrivetrainDef.diffMode, diffCouple	differentialMode, differentialCoupling
  M3_MAX_DRIVETRAIN_CURVE	M3_MAX_DRIVETRAIN_CURVE_POINTS
  M3_SERVO_REACH_LIMIT	M3_TARGET_REACH_LIMIT
  M3_BLAST_LIMIT	M3_EXPLOSION_IMPULSE_LIMIT

  (#344)

• Breaking: a dropped explosion carve has its own counter.
  m3Counters.voxelEditsRefused counted both voxel edits refused with
  m3_errorLimit and explosion carves m3World_Explode skipped for
  the same surface bound, which no status reports. It now counts the
  edits only, and the new m3Counters.voxelCarvesDropped counts the
  skipped carves. A program that watched voxelEditsRefused for
  carves reads voxelCarvesDropped.
  (#346)

• Breaking: m3Counters drops three fields other calls report.
  scratchPeak and scratchCapacity are gone: read them from
  m3World_GetMemoryUsage. snapshotBytes is gone: call
  m3World_GetSnapshotSize. m3World_GetCounters no longer measures
  the snapshot.
  (#347)

• Formats. The snapshot keeps format 6, the journal tape format 7
  and the replay container format 4. As in every release, a snapshot,
  tape or container written by another release is refused with
  m3_errorVersion.

Fixed

• Breaking: a spherical def refuses a negative cone angle.
  m3CreateSphericalJoint took a negative coneAngle while
  enableCone was false, a value m3SphericalJoint_SetConeAngle
  refuses with the cone on or off. The create now refuses it with
  m3_errorInvalid and one misuse whether the cone is on or off, and
  restore and replay refuse such bytes. Pass an angle of zero or more.
  (#341)