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Highlights from this release:

  • ABI=14 removes the tree level I/O methods and the out-of-core state from the grid, tree, node and point attribute classes. Serialization now goes only through the new openvdb::codecs framework introduced in 13.2.
  • OpenVDB has fewer external dependencies. Blosc is no longer an external dependency and has now been vendored into the core library. Log4cplus has been removed and replaced by a logging sink API. Zlib is now a private dependency.
  • Added CMake Config files for OpenVDB so downstream projects can more easily depend on OpenVDB, NanoVDB and AX.
  • The NanoVDB GPU tools now build into single-space, device-only buffers by default. The dual-space buffers and the forwarding headers and function names deprecated since OpenVDB 12.0 are removed.
  • Minimum dependency versions now track CY2025 of the VFX Reference Platform.

See the release notes for more details.

Source: README.md, updated 2026-10-29