- update to 1.8.6:
* Introduce CPacke to top level CMake. (PR 425)
* Fix typo in a comment. (PR 417)
* Fix bug with OCurves, ONuPatch, OPoints, OPolyMesh, and OSubD
were not properly incrementing their number of set samples
when using setFromPrevious. (PR 433)
* Fix default values for float PODTraits. (PR 422)
* Introduce -hold argument which will use the previous set
sample instead of setting an empty sample for missing samples.
- update to 1.8.5:
* Add test for fuzzer issue 53406.
* Address Issue 402 by not using deprecated kWrapExisting calls
when possible.
* Add missing vertex for cube test in the python bindings per
Issue 407.
* Fix several warnings mentioned in Issue 309, 398 and 412.
* Don't explicitly set MACOSX_RPATH as it is set by default in
CMake 3+. (PR404)
* Use install rpath for Imath 3. (PR405)
* Use STRING instead of PATH for ALEMBIC_LIB_INSTALL_DIR.
* Add CIFuzz as a GitHub action. (PR403)

of bools in OXform.
- Avoid forcing SSE/SSE2 on %ix86, it is not guaranteed to exist.