diff --git a/science/openmc/Makefile b/science/openmc/Makefile
index 6e025f6c4f36..df2c27e4d246 100644
--- a/science/openmc/Makefile
+++ b/science/openmc/Makefile
@@ -1,56 +1,56 @@
 PORTNAME=	openmc
 DISTVERSIONPREFIX=	v
-DISTVERSION=	0.15.0
-PORTREVISION=	2
+DISTVERSION=	0.16.0
 CATEGORIES=	science
 
 MAINTAINER=	yuri@FreeBSD.org
 COMMENT=	Monte Carlo neutron and photon transport simulation code
 WWW=		https://openmc.org/ \
 		https://docs.openmc.org/en/stable/ \
 		https://github.com/openmc-dev/openmc
 
 LICENSE=	MIT
 LICENSE_FILE=	${WRKSRC}/LICENSE
 
-BROKEN=		compilation fails with clang-19, see https://github.com/openmc-dev/openmc/issues/3183
-
 BUILD_DEPENDS=	xtensor>0:math/xtensor
 LIB_DEPENDS=	libfmt.so:devel/libfmt \
 		libhdf5.so:science/hdf5 \
 		libpng16.so:graphics/png \
 		libpugixml.so:textproc/pugixml
+TEST_DEPENDS=	catch2>0:devel/catch2
 
 USES=		cmake:noninja,testing eigen:3 pkgconfig
 
 USE_GITHUB=	yes
 GH_ACCOUNT=	${PORTNAME}-dev
 GH_TUPLE=	catchorg:Catch2:5a40b22:catch2/vendor/Catch2 \
 		martinmoene:gsl-lite:913e86d:gsl_lite/vendor/gsl-lite # gsl-lite isn't ported yet
 
 CMAKE_OFF=	OPENMC_BUILD_TESTS
 CMAKE_TESTING_ON=	OPENMC_BUILD_TESTS # tests are broken, see https://github.com/openmc-dev/openmc/issues/2449
 
 BINARY_ALIAS=	git=false
 
 OPTIONS_DEFINE=		LIBMESH MPI OPENMP
 OPTIONS_DEFAULT=	MPI
 
 LIBMESH_DESC=		Support for libMesh unstructured mesh tallies
 LIBMESH_CMAKE_BOOL=	OPENMC_USE_LIBMESH
 LIBMESH_LIB_DEPENDS=	libmesh_opt.so:math/libmesh
 
 MPI_VARS=		CXX=${LOCALBASE}/bin/mpic++ # compilation breaks with OpenMPI-{3,4} and LIBMESH=ON
 MPI_BUILD_DEPENDS=	mpich>0:net/mpich
 MPI_RUN_DEPENDS=	mpich>0:net/mpich
 
 OPENMP_CMAKE_BOOL=	OPENMC_USE_OPENMP
 
 .if exists(/usr/include/omp.h)
 OPTIONS_DEFAULT+=	OPENMP
 .endif
 
 post-install:
 	${RM} -r ${STAGEDIR}${DOCSDIR}
 
+# tests as of 0.16.0: 92% tests passed, 1 tests failed out of 12, see https://github.com/openmc-dev/openmc/issues/4054
+
 .include <bsd.port.mk>
diff --git a/science/openmc/distinfo b/science/openmc/distinfo
index 9fc845688af9..a452c67116b6 100644
--- a/science/openmc/distinfo
+++ b/science/openmc/distinfo
@@ -1,7 +1,7 @@
-TIMESTAMP = 1719035387
-SHA256 (openmc-dev-openmc-v0.15.0_GH0.tar.gz) = 32517c1af1abee615e0b49330fd6eb6d704dd96d903b5b415091aea8aa52bbf0
-SIZE (openmc-dev-openmc-v0.15.0_GH0.tar.gz) = 7810068
+TIMESTAMP = 1786055071
+SHA256 (openmc-dev-openmc-v0.16.0_GH0.tar.gz) = cfdf10f8dc66e652668dbc94501d5ed99b3dfecabc11cf91989a29ba7984654f
+SIZE (openmc-dev-openmc-v0.16.0_GH0.tar.gz) = 8721314
 SHA256 (catchorg-Catch2-5a40b22_GH0.tar.gz) = 9f462dbbee9562a2a389755727baaa513fa8b1a7d7bbb97c38c304e2051a88d3
 SIZE (catchorg-Catch2-5a40b22_GH0.tar.gz) = 1106343
 SHA256 (martinmoene-gsl-lite-913e86d_GH0.tar.gz) = 53f4ad67e182d58161ec297593af4139ccb2a8fd712ba9cd77d129b6f87c6b3b
 SIZE (martinmoene-gsl-lite-913e86d_GH0.tar.gz) = 105966
diff --git a/science/openmc/pkg-plist b/science/openmc/pkg-plist
index 874081790e4a..69bb7e8d51b1 100644
--- a/science/openmc/pkg-plist
+++ b/science/openmc/pkg-plist
@@ -1,132 +1,148 @@
 bin/openmc
-include/gsl-lite/gsl-lite.hpp
-include/gsl/gsl-lite.hpp
 include/openmc/angle_energy.h
 include/openmc/array.h
+include/openmc/atomic_mass.h
 include/openmc/bank.h
+include/openmc/bank_io.h
 include/openmc/boundary_condition.h
+include/openmc/bounding_box.h
 include/openmc/bremsstrahlung.h
 include/openmc/capi.h
 include/openmc/cell.h
+include/openmc/chain.h
 include/openmc/cmfd_solver.h
+include/openmc/collision_track.h
 include/openmc/constants.h
 include/openmc/container_util.h
 include/openmc/cross_sections.h
 include/openmc/dagmc.h
 include/openmc/distribution.h
 include/openmc/distribution_angle.h
 include/openmc/distribution_energy.h
 include/openmc/distribution_multi.h
 include/openmc/distribution_spatial.h
 include/openmc/eigenvalue.h
 include/openmc/endf.h
 include/openmc/error.h
 include/openmc/event.h
 include/openmc/external/Faddeeva.hh
 include/openmc/external/quartic_solver.h
 include/openmc/file_utils.h
 include/openmc/finalize.h
 include/openmc/geometry.h
 include/openmc/geometry_aux.h
 include/openmc/hdf5_interface.h
+include/openmc/ifp.h
 include/openmc/initialize.h
 include/openmc/interpolate.h
 include/openmc/lattice.h
 include/openmc/material.h
 include/openmc/math_functions.h
 include/openmc/mcpl_interface.h
 include/openmc/memory.h
 include/openmc/mesh.h
 include/openmc/message_passing.h
 include/openmc/mgxs.h
 include/openmc/mgxs_interface.h
 include/openmc/ncrystal_interface.h
+include/openmc/ncrystal_load.h
 include/openmc/neighbor_list.h
 include/openmc/nuclide.h
 include/openmc/openmp_interface.h
 include/openmc/output.h
 include/openmc/particle.h
 include/openmc/particle_data.h
 include/openmc/particle_restart.h
+include/openmc/particle_type.h
 include/openmc/photon.h
 include/openmc/physics.h
 include/openmc/physics_common.h
 include/openmc/physics_mg.h
 include/openmc/plot.h
 include/openmc/position.h
 include/openmc/progress_bar.h
 include/openmc/random_dist.h
 include/openmc/random_lcg.h
 include/openmc/random_ray/flat_source_domain.h
+include/openmc/random_ray/linear_source_domain.h
+include/openmc/random_ray/moment_matrix.h
+include/openmc/random_ray/parallel_map.h
 include/openmc/random_ray/random_ray.h
 include/openmc/random_ray/random_ray_simulation.h
+include/openmc/random_ray/source_region.h
+include/openmc/ray.h
 include/openmc/reaction.h
 include/openmc/reaction_product.h
 include/openmc/scattdata.h
 include/openmc/search.h
 include/openmc/secondary_correlated.h
 include/openmc/secondary_kalbach.h
 include/openmc/secondary_nbody.h
 include/openmc/secondary_thermal.h
 include/openmc/secondary_uncorrelated.h
 include/openmc/settings.h
 include/openmc/shared_array.h
 include/openmc/simulation.h
 include/openmc/source.h
+include/openmc/span.h
 include/openmc/state_point.h
 include/openmc/string_utils.h
 include/openmc/summary.h
 include/openmc/surface.h
 include/openmc/tallies/derivative.h
 include/openmc/tallies/filter.h
 include/openmc/tallies/filter_azimuthal.h
 include/openmc/tallies/filter_cell.h
 include/openmc/tallies/filter_cell_instance.h
 include/openmc/tallies/filter_cellborn.h
 include/openmc/tallies/filter_cellfrom.h
 include/openmc/tallies/filter_collision.h
 include/openmc/tallies/filter_delayedgroup.h
 include/openmc/tallies/filter_distribcell.h
 include/openmc/tallies/filter_energy.h
 include/openmc/tallies/filter_energyfunc.h
 include/openmc/tallies/filter_legendre.h
 include/openmc/tallies/filter_match.h
 include/openmc/tallies/filter_material.h
 include/openmc/tallies/filter_materialfrom.h
 include/openmc/tallies/filter_mesh.h
 include/openmc/tallies/filter_meshborn.h
+include/openmc/tallies/filter_meshmaterial.h
 include/openmc/tallies/filter_meshsurface.h
 include/openmc/tallies/filter_mu.h
+include/openmc/tallies/filter_musurface.h
+include/openmc/tallies/filter_parent_nuclide.h
 include/openmc/tallies/filter_particle.h
+include/openmc/tallies/filter_particle_production.h
 include/openmc/tallies/filter_polar.h
+include/openmc/tallies/filter_reaction.h
 include/openmc/tallies/filter_sph_harm.h
 include/openmc/tallies/filter_sptl_legendre.h
 include/openmc/tallies/filter_surface.h
 include/openmc/tallies/filter_time.h
 include/openmc/tallies/filter_universe.h
+include/openmc/tallies/filter_weight.h
 include/openmc/tallies/filter_zernike.h
 include/openmc/tallies/tally.h
 include/openmc/tallies/tally_scoring.h
 include/openmc/tallies/trigger.h
+include/openmc/tensor.h
 include/openmc/thermal.h
 include/openmc/timer.h
 include/openmc/track_output.h
 include/openmc/universe.h
 include/openmc/urr.h
 include/openmc/vector.h
 include/openmc/version.h
 include/openmc/version.h.in
 include/openmc/volume_calc.h
 include/openmc/weight_windows.h
 include/openmc/wmp.h
 include/openmc/xml_interface.h
 include/openmc/xsdata.h
 lib/cmake/OpenMC/OpenMCConfig.cmake
 lib/cmake/OpenMC/OpenMCConfigVersion.cmake
 lib/cmake/OpenMC/OpenMCTargets-%%CMAKE_BUILD_TYPE%%.cmake
 lib/cmake/OpenMC/OpenMCTargets.cmake
-lib/cmake/gsl-lite/gsl-lite-config-version.cmake
-lib/cmake/gsl-lite/gsl-lite-config.cmake
-lib/cmake/gsl-lite/gsl-lite-targets.cmake
 lib/libopenmc.so
 share/man/man1/openmc.1.gz