Series 0.6

Major development version 0.6 can be cited through its Zenodo code release [Johnson et al., 2025].

Version 0.6.2

Released 2025/09/23

Version 0.6.2 is a minor bug fix update. - Fixed reconstruction of track weights in returned Geant4 hits - Improved documentation and use of CELER_USE_PROFILING - Added push/flush profiling counters in accel interface - Update externals to latest versions (including G4VG 1.0.5 with VecGeom/CUDA fix)

Changes since v0.6.1 follow.

New features

• Warn user when running large problems on debug build (@sethrj, #1971)

• Improve version metadata for built-in packages and VecGeom (@sethrj, #1929)

Bug fixes

• Fix propagation of weight from primary to track to secondary (@sethrj, #1965)

Documentation improvements

• Add documentation and use flag for CELER_USE_PROFILING (@sethrj, #1966)

• Fix cache clearing (@sethrj, #1979)

Minor internal changes

• Add push/flush profiling to accel interface (@sethrj, #1968)

• Update externals (@sethrj, #1977)

• Add iostream wrappers for Geant physics options (@sethrj, #1981)

Reviewers

• Philippe Canal (@pcanal): 4

• Amanda Lund (@amandalund): 3

• Rashika Gupta (@Rashika-Gupta): 1

Full Changelog: https://github.com/celeritas-project/celeritas/compare/v0.6.1…v0.6.2

Version 0.6.1

Released 2025/09/13

Version 0.6.1 is a minor capability and bug fix update. Geant4-to-ORANGE conversion has gained new abilities including:

• Support for reflection

• Support for replicated and parameterized volumes

• New shapes including G4ExtrudedSolid, G4GenericPolycone, G4Paraboloid, polar-truncated sphere

• Fixes and improvements to deduplication of general quadric surfaces such as twisted trap faces and ellipsoids

Geant4 integration has improved with:

• Automatic generation of field maps from in-memory G4Field

• Track IDs are now reconstructed when returning hits to Geant4

• Track weights are propagated through Celeritas and returned to Geant4

• Additional data members are reconstructed in hit track/steps to reduce null pointers

• G4VTrackUserInfo and G4VProcess are reconstructed as valid (but not necessarily meaningful) pointers

Code compatibility improvements include:

• Support for CUDA 12.9 and NVCC with cxxstd=20

• Changes to allow GCC’s overzealous -Wmissing-braces (#1863) used by CMSSW

• Fixes to include-what-you-use errors that failed newer compilers/c++ libs

• Support for CMake find_package(Celeritas) multiple times (still discouraged though)

• Allow multiple runs when using GPU

• Improved compatibility for Geant4 10

• Improved use of environment variables (now the value of CELER_DISABLE and others are considered, not just their existence)

Changes since v0.6.0 follow.

New features

• Add default values for track slots and initializer capacity (@amandalund, #1772)

• Complete optical stepping loop (@amandalund, #1792)

• Create IntersectRegion for a convex extruded polygon (@elliottbiondo, #1783)

• Adds Sensitive Detector parameter Class (@lebuller, #1764)

• Print Celeritas configuration options when loading downstream (@sethrj, #1802)

• Make optical max_step_iters configurable and properly reset state after aborting (@amandalund, #1805)

• Add reflection to ORANGE (@sethrj, #1807)

• Add options to forcibly disable Cherenkov and scintillation (@amandalund, #1814)

• Add replica+parameterisation support to ORANGE (@sethrj, #1817)

• Add surface normal calculations in GeoTrackView (@hhollenb, #1804)

• Add WLS model class, generator, and executor and support second WLS process (@amandalund, #1816)

• Support configurable WLS reemission time distribution (@amandalund, #1822)

• Add volume params to represent Geant4 volume graph (@sethrj, #1821)

• Full G4ExtrudedSolid support (@elliottbiondo, #1808)

• Read and export Geant4 surface definitions (@sethrj, #1824)

• Add in-situ cartesian field map construction from Geant4 (@esseivaju, #1828)

• Add geometry surface definitions to runtime (@sethrj, #1812)

• Output optical actions (@amandalund, #1836)

• Add polar truncation for sphere shape (@sethrj, #1832)

• Generate optical photons directly into track slots for 2× GPU speedup (@amandalund, #1844)

• Add track weight propagation to secondaries track (@Rashika-Gupta, #1847)

• Reconstruct Geant4 TrackID (@esseivaju, #1837)

• Update HitProcessor test to support non unit weights (@Rashika-Gupta, #1853)

• Add optical primary generator (@amandalund, #1858)

• Add VolumeSurfaceSelector (@hhollenb, #1859)

• Add pre-commit spell checking (@sethrj, #1867)

• Reconstruct G4VTrackUserInfo and G4VProcess (@esseivaju, #1866)

• Allow multiple “activate device” calls if not modifying device (@sethrj, #1938)

• Add TrackProcessor class for reconstructing Geant4 tracks (@esseivaju, #1869)

• Add RevolvedSpecialTrapezoid as a first step towards G4GenericPolycone (@elliottbiondo, #1840)

• Add full support for G4GenericPolycone (@elliottbiondo, #1892)

• Add support for G4Paraboloid (@elliottbiondo, #1893)

• Support discontinuities in nonuniform grid calculator (@sethrj, #1906)

• Use environment variable values if set (@sethrj, #1937)

Bug fixes

• Patch covfie shasum (@esseivaju, #1771)

• Fix table size in physics construction (@amandalund, #1780)

• Fix and refactor maximum cross section energy calculation for integral approach (@amandalund, #1776)

• Support CUDA 12.9 and NVCC with cxxstd=20 (@sethrj, #1787)

• Fix sincospi on device (@amandalund, #1791)

• Fix assigning parent ID to track initializer (@amandalund, #1795)

• Fix orange polyhedron orientation and roundoff error (@sethrj, #1806)

• Flush optical tracks at the end of core stepping loop (@amandalund, #1834)

• Reconstruct additional data in G4Track (@sethrj, #1835)

• Add null pointer checks for Geant4 surfaces (@sethrj, #1841)

• Fix counters in optical generator action (@amandalund, #1857)

• Protect Celeritas::G4 CMake target against double creation (@drbenmorgan, #1879)

• Fix oversimplification of simple quadrics (@sethrj, #1897)

• Fix normalization and edge cases on twisted GenPrism faces (@sethrj, #1899)

• Fix weight reconstruction for GeantSd (@sethrj, #1940)

Documentation improvements

• Release v0.6.0 (@sethrj, #1688)

• Add helper for accumulating histograms (@sethrj, #1759)

• Add zenodo citations to celeritas user manual (@sethrj, #1762)

• Require covfie v0.14 (@esseivaju, #1767)

• Replace hand-rolled hooks with pre-commit and CI (@sethrj, #1765)

• Refactor micro xs CDF calculation and add test (@amandalund, #1768)

• Edit user manual and fix PDF build (@sethrj, #1782)

• Document geometry hierarchy and move EM table (@sethrj, #1788)

• Round all floating point numbers in test output to a few digits (@sethrj, #1758)

• Work around a doxy/breathe rendering bug and make some notes internal (@sethrj, #1797)

• Replace EXPECT_VEC_CLOSE with soft comparator (@sethrj, #1819)

• Finish updating copyrights (@amandalund, #1820)

• Update build script and user presets (@sethrj, #1845)

• Detect and use ccache (@esseivaju, #1848)

• Revert one unintentional typo change from #1867 (@pcanal, #1871)

Minor internal changes

• Fail early if find-or-builtin package is missing (@sethrj, #1770)

• Remove ValueGridBuilder s (@amandalund, #1766)

• Add ostream support for enums (@amandalund, #1774)

• Add missing typename and const to CartMapField (@esseivaju, #1769)

• Apply pre-commit hooks across repository (@sethrj, #1773)

• Rename logspace to geomspace (@sethrj, #1777)

• Use correct types for physics grids (@amandalund, #1781)

• Add tests and documentation for Tsai nuclear screening functions (@sethrj, #1779)

• Adjust version compatibility for covfie (@sethrj, #1778)

• Simplify nested join nodes (@sethrj, #1784)

• Store hardwired model data by reference (@amandalund, #1785)

• Organize optical directory (@amandalund, #1789)

• Move core track initialization to CoreTrackView (@amandalund, #1794)

• Add make_orthogonal helper function (@sethrj, #1793)

• Move magnetic field retrieval to a helper function (@sethrj, #1798)

• Extend auxiliary data helpers to support aux state data without params (@amandalund, #1799)

• Keep persistent GeantGeoParams for geometry translation (@sethrj, #1796)

• Refactor optical generation to reduce duplication (@amandalund, #1800)

• Move optical photon generation to optical stepping loop (@amandalund, #1803)

• Make Geant4 volume IDs consistent wrt load order (@sethrj, #1809)

• Fix configuring against latest VecGeom with CUDA disabled (@pcanal, #1813)

• Rename SurfaceId in preparation for volume-based surface definitions (@sethrj, #1811)

• Rearrange generic geo test interface (@sethrj, #1818)

• Use variant set for uniform field input (@amandalund, #1826)

• Rename solid angle class (@sethrj, #1825)

• Optimize cosine for turn (@sethrj, #1830)

• Refactor solid Z slab as Truncated object (@sethrj, #1827)

• Use start/stop instead of start/interior for azimuthal wedge (@sethrj, #1831)

• Add surface properties to core and optical params (@amandalund, #1838)

• Add a helper function for launching a CPU kernel with an arbitrary number of threads (@amandalund, #1842)

• Define geometry implementation IDs (@sethrj, #1839)

• Add generator interface and registry (@amandalund, #1849)

• Document and improve build script (@sethrj, #1854)

• Hotfix: revert accidental changes from #1839 (@sethrj, #1856)

• Add volume params to core (@sethrj, #1846)

• Add surface physics map (@sethrj, #1852)

• Begin exposing Cherenkov/optical loop outside of the optical collector (@sethrj, #1861)

• IWYU on some files (@sethrj, #1935)

• Convert to using counterclockwise order for polygons (@elliottbiondo, #1873)

• Delete IPAContextException (@sethrj, #1882)

• Use class constructors rather than initialization for Array to fix CMS (@sethrj, #1887)

• Add RevolvedPolygon class (@elliottbiondo, #1888)

• Define throw helper functions to reduce code bloat and improve performance (@sethrj, #1908)

• Update particle speed calculation to be more robust against round-off error (@amandalund, #1917)

• Add custom error handler to unify G4 exception handlers (@sethrj, #1919)

Deprecation and removal

• Remove combined bremsstrahlung model (@amandalund, #1786)

• Remove SpecialTrapezoid and RevolvedSpecialTrapezoid classes (@elliottbiondo, #1890)

Reviewers

• Seth R. Johnson (@sethrj): 50

• Amanda Lund (@amandalund): 30

• Philippe Canal (@pcanal): 13

• Julien Esseiva (@esseivaju): 9

• Elliott Biondo (@elliottbiondo): 9

• Guilherme Lima (@mrguilima): 4

• Soon Yung Jun (@whokion): 2

• Rashika Gupta (@Rashika-Gupta): 2

• Stefano Tognini (@stognini): 1

• Sakib Rahman (@rahmans1): 1

• Lance Bullerwell (@lebuller): 1

• Hayden Hollenbeck (@hhollenb): 1

Full Changelog: https://github.com/celeritas-project/celeritas/compare/v0.6.0…v0.6.1

Version 0.6.0

Released 2025/04/23

Version 0.6.0 is a major update to Celeritas featuring:

• High-level integration utilities for Geant4 applications

• Optical physics implementation including volumetric physics

• Advanced field mapping capabilities with 3D cylindrical and cartesian field maps and volume-specific uniform fields

• Extended geometry conversion and optimization-oriented features for ORANGE

• Support for VecGeom 2.0

• Spline interpolation for cross-section calculations and energy loss

A few minor features are noteworthy:

• Improved debugging utilities for diagnosing stuck/errored tracks

• Support for sensitive detectors in replica/parameterized volumes

• Better handling of tracks that fail or get stuck during simulation

Notable bug fixes include:

• Fixed navigation and mapping of reflecting volumes for VecGeom

• Resolved crashes related to process construction and memory access

• Fixed issues with GDML file loading and SD hit scoring

• Fixed Urban MSC scattering distribution (backported to v0.5.3)

Some interfaces have been removed:

• Obsolete demonstration apps and celer-dump-data

• Macro setup from celer-g4

• The ability to run on the default stream

Known deficiencies:

• Surface optical physics (reflection, refraction) is not yet implemented

• ORANGE performance is significantly degraded compared to v0.5

Changes since v0.5.0, excluding those released in v0.5.3, follow.

New features

• Add optical “locate vacancies” and pre-step actions (@amandalund, #1441)

• Extend debug utilities for stuck/errored tracks (@sethrj, #1451)

• Add CELER_NONFATAL_FLUSH to cleanly kill stuck tracks (@sethrj, #1455)

• Add optical absorption model with imported data (@hhollenb, #1440)

• Add multilevel “volume instance” (@sethrj, #1461)

• Reconstruct Geant4 navigation history from stack (@sethrj, #1466)

• Add “cut” for individual track steps (@sethrj, #1467)

• Improve error checking and diagnostic output for managing GPU (@sethrj, #1464)

• Add distance-to-bbox function (@elliottbiondo, #1446)

• Add multi-level state to detector step result (@sethrj, #1471)

• Override and save Geant4 dataset variables at configure time (@pcanal, #1475)

• Implement spline interpolation for cross-section calculation (@lebuller, #1444)

• Implement optical Rayleigh model (@hhollenb, #1469)

• Allow core and optical loops to have different numbers of track slots (@amandalund, #1491)

• Add muon decay interactor (@stognini, #1456)

• Add option to use spline-interpolated energy loss (@lebuller, #1496)

• Add an Optical WLS (@whokion, #1507)

• Add muon pair production (@amandalund, #1518)

• Extend BIH capabilities for intersection operations (@elliottbiondo, #1479)

• Add along-step and tracking cut optical executors (@sethrj, #1540)

• Enable optical stepping loop (@sethrj, #1546)

• Simplify UnitProto after building a CsgUnit (@esseivaju, #1415)

• Implement device bitset (@esseivaju, #1547)

• Reduce celer-sim memory usage and improve its CELER_LOG transport output (@stognini, #1550)

• Support sense caching for future lazy evaluation (@esseivaju, #1539)

• Support building infix logic representation (@esseivaju, #1530)

• Import and use muon+hadron EM physics parameters (@amandalund, #1581)

• Extend Coulomb scattering to support additional particle types (@amandalund, #1574)

• Add optical model importer and refactor imported optical materials (@hhollenb, #1520)

• Add global Celeritas input definition (@sethrj, #1562)

• Always select at-rest process for stopped tracks (@amandalund, #1592)

• Use BIH to accelerate background_intersect (@elliottbiondo, #1599)

• Add ultra-simple tracking manager integration (@sethrj, #1609)

• Implement cubic spline interpolation (@amandalund, #1607)

• Add a calculator to integrate range from energy loss (@amandalund, #1544)

• Add G4Ellipsoid without bottom/top cuts (@elliottbiondo, #1617)

• Add safety visualization tool (@sethrj, #1614)

• Remove pointers from Geant4 labels (@sethrj, #1620)

• Add high-level user/fast sim integration helpers (@sethrj, #1615)

• Support spline interpolation on a nonuniform grid (@amandalund, #1625)

• Prune primaries that start outside the world volume (@sethrj, #1624)

• Add support for Z cuts when converting G4Solids (@elliottbiondo, #1638)

• Support sensitive detectors in replica/parameterized volumes (@sethrj, #1649)

• Add an option to enable status checker through celer-sim (@sethrj, #1650)

• Add support for elliptical cylinders and elliptical cones in orange and g4org (@elliottbiondo, #1642)

• Support post-step touchable location and step status (@sethrj, #1653)

• Support surface-based VecGeom 2.x navigator (@mrguilima, #1422)

• Approximate G4Torus using inner/outer bounding cylinders (@elliottbiondo, #1654)

• Support volume-specific uniform field (@amandalund, #1659)

• Implement discrete optical physics (@hhollenb, #1604)

• Add an example user action for gathering statistics on GPU (@sethrj, #1664)

• Add quantity support to FindInterp and template Turn (@sethrj, #1675)

• Support VecGeom 2.0 (@sethrj, #1674)

• Add 3D Cylindrical field map (@esseivaju, #1662)

• Make SB energy limit configurable and partially fix failures when using a single brems model (@amandalund, #1686)

• Add timers to accel integration classes (@amandalund, #1693)

• Use float for field interpolation (@esseivaju, #1684)

• Allow some “required” SetupOptions to be set via Geant4 UI (@sethrj, #1697)

• Support counter with NVTX (@esseivaju, #1702)

• Use programmatic optical counters instead of absurdly verbose printout (@sethrj, #1707)

• Allow G4 applications to query celeritas offload mode (@sethrj, #1711)

• Reduce logging verbosity during Geant4 runs (@sethrj, #1705)

• Improve messages when multiple tracks fail in flight (@sethrj, #1715)

• Estimate scintillation wavelength distribution parameters from tabulated values when only the latter is provided (@amandalund, #1722)

• Add utilities to stabilize downstream use of ORANGE (@sethrj, #1736)

• Expand support for spline interpolation (@amandalund, #1633)

• Add cartesian magnetic field using Covfie (@esseivaju, #1744)

Bug fixes

• Define a “unique event ID” different from event counter (@sethrj, #1447)

• Fix optical import when unused materials are defined (@sethrj, #1449)

• Remove trackid counter from primary (@sethrj, #1448)

• Improve single-event mode in accel (@sethrj, #1452)

• Fix GDML export messages and geometry-only use case (@sethrj, #1454)

• Fix tracking cut message (@sethrj, #1458)

• Anchor vtables to fix broken dynamic cast in tests (@sethrj, #1474)

• Fix documentation (@sethrj, #1502)

• Fix clang-tidy weekly cron (@esseivaju, #1541)

• Fix multiple release() calls to ensure nullptr is not used in process construction (@amandalund, #1612)

• Support different grid spacings for cross section data (@amandalund, #1622)

• Fix crash in multithreaded celer-g4 (@amandalund, #1627)

• Fix loading of GDML files with reflection (@sethrj, #1626)

• Fix navigation and mapping of reflecting volumes (@sethrj, #1629)

• Fix reading and writing HepMC3 events (@amandalund, #1635)

• Initialize MPI in high-level integration classes (@sethrj, #1672)

• Fix bremsstrahlung process construction when using only a single model (@amandalund, #1677)

• Lazily fetch volumes for UniformAlongStepFactory (@rahmans1, #1666)

• Fix BoundingZone floating point issue (@elliottbiondo, #1681)

• Fix out-of-bounds memory access in CylMapField (@amandalund, #1689)

• Fix Geant4 SD hit scoring (@amandalund, #1708)

• Fix field map usage from accel (@sethrj, #1724)

• Fix failures when integral approach is disabled (@amandalund, #1727)

Documentation improvements

• Improve XSCalculator documentation and tests (@sethrj, #1450)

• Require clang-tidy in CI (@esseivaju, #1524)

• Tidy headers (@esseivaju, #1534)

• Run clang-tidy on modified files only (@esseivaju, #1531)

• Build VecGeom in weekly clang-tidy cron (@esseivaju, #1551)

• Document and slightly refactor Bethe-Heitler interactor (@sethrj, #1553)

• Update copyrights (@sethrj, #1560)

• Enable more dependencies in clang-tidy checks (@esseivaju, #1561)

• Fix Doxygen member group formatting (@amandalund, #1567)

• Improve and fix documentation (@sethrj, #1588)

• Add generic geometry test interface to reduce duplication (@sethrj, #1623)

• Improve testing and documentation for VecGeom (@sethrj, #1639)

• Fix rendering of README (@dalg24, #1640)

• Add ORCID to citation (@esseivaju, #1645)

• Improve geometry testing (@sethrj, #1652)

• Move offload template into a celeritas::example namespace (@sethrj, #1663)

• Enable optical GPU tests (@amandalund, #1682)

• Update ROOT data and tests with Geant4 version 11.3.0 (@amandalund, #1687)

• Split EM physics and Geant4 interface into sub-files (@sethrj, #1698)

• Improve doc generation and brems-related documentation (@sethrj, #1701)

• Update Geant4 version to 11.3 in CI build (@amandalund, #1712)

• Add histogram helper class to simplify distribution tests (@amandalund, #1717)

• Add string simplifier helper class for testing (@sethrj, #1719)

• Improve MSC test code coverage (@sethrj, #1723)

• Add quick-start documentation for integrating (@sethrj, #1725)

• Fix pedantic warning in tests (@elliottbiondo, #1730)

• Add authorship guidelines (@sethrj, #1747)

• Support testing nested container equivalence and tweak Histogram class (@amandalund, #1753)

Minor internal changes

• Give priority to existing environment variables for G4 data location (@pcanal, #1457)

• Define id_cast helper function (@sethrj, #1459)

• Simplify geometry “volume” interface (@sethrj, #1460)

• Refactor step storage to use aux state (@sethrj, #1465)

• Refactor pinned allocator to reduce need for templates (@sethrj, #1468)

• Tweak Perfetto integration (@sethrj, #1470)

• Escape semicolons in exported CMake variables (@drbenmorgan, #1472)

• Require CELERITAS_DEBUG be on to enable CELERITAS_DEVICE_DEBUG (@amandalund, #1476)

• Use kernel launchers instead of macros (@sethrj, #1477)

• Fix missing brace and refactor #1475 (@sethrj, #1480)

• Fix build with latest Geant4 develop (@pcanal, #1484)

• Refactor “touchable updater” that uses a navigator (@sethrj, #1483)

• Store edge bounding boxes on BIH and refactor for upcoming intersection capabilities (@elliottbiondo, #1478)

• Add FourVector helper functions (@sethrj, #1510)

• Define hypotenuse function using fma (@sethrj, #1513)

• Add a helper class for inverse transform sampling (@amandalund, #1525)

• Rename Cerenkov to Cherenkov (@amandalund, #1533)

• Clean up optical mock test data (@hhollenb, #1519)

• Store a single process-integrated energy loss and range table per particle (@amandalund, #1536)

• Add piecewise integrator and CDF utilities (@sethrj, #1537)

• Define precision-agnostic Constant class (@sethrj, #1549)

• Adapt bitset word size (@esseivaju, #1554)

• Add ‘LogicalTrue’ functor (@sethrj, #1564)

• Fix unnecessary use of inline constexpr (@sethrj, #1568)

• Replace “volid” with “vol_id” throughout ORANGE (@elliottbiondo, #1486)

• Compose caching functionality of LazySenseCalculator (@esseivaju, #1569)

• Use lazy sense calculator (@esseivaju, #1576)

• Change PrimaryGeneratorAction to be a wrapper (@sethrj, #1593)

• Refactor primary generator using new inp (@sethrj, #1583)

• Add postfix to infix conversion utility (@esseivaju, #1582)

• Move physics lists out of details and rename tracking offload (@sethrj, #1603)

• Add TrackingManagerConstructor and SharedParams::GetMode (@sethrj, #1606)

• Move PolyEvaluator to corecel/math (@amandalund, #1610)

• Rename fast simulation offload (@sethrj, #1613)

• Rename Generic grid to Nonuniform (@amandalund, #1616)

• Require VecGeom 1.2.10 for CUDA RDC support (@pcanal, #1628)

• Construct CoreParams from new problem input in celer-sim (@sethrj, #1601)

• Move Geant4 SD integration into celeritas/ext (@sethrj, #1631)

• Refactor log handlers for better reuse (@sethrj, #1636)

• Rename CoreTrackView methods (@amandalund, #1658)

• Refactor geometry tests into common file (@sethrj, #1656)

• Use extern static data for versions, configuration (@sethrj, #1657)

• Use CLI11 for front end command line parsing (@sethrj, #1660)

• Hide Thrust from .cc code (@sethrj, #1670)

• Remove G4EmExtraPhysics from FtfpBertPhysicsList (@whokion, #1644)

• Define dependency helper targets and reorganize CMakeLists (@sethrj, #1673)

• Change default field substeps in accel (@esseivaju, #1690)

• Update and fix G4VG external integration (@sethrj, #1700)

• Use inp to build accel core params (@sethrj, #1632)

• Move random to corecel (@sethrj, #1716)

• Remove dependency of orange test on celeritas (@sethrj, #1718)

• Simplify Geant4 user application interface (@sethrj, #1729)

• Replace ImportPhysicsVector with inp::Grid (@amandalund, #1735)

• Add ExtThrust for more explicit dependencies (@sethrj, #1694)

• Rename field integration interfaces: Stepper→Integrators, Driver→Substepper (@sethrj, #1737)

• Add uniform grid input and continue to simplify grid construction (@amandalund, #1739)

• Rename material ID types (@sethrj, #1742)

• Simplify grid construction in a few more places (@amandalund, #1743)

• Fix ROCTX find: hip not cuda (@sethrj, #1755)

• Move types around to fix ROOT error (@sethrj, #1757)

• Simplify MSC angular sampling (@sethrj, #1714)

Deprecation and removal

• Delete obsolete demonstration apps (@sethrj, #1463)

• Remove ‘default_stream’ option (@sethrj, #1667)

• Remove deprecations for v0.6 (@sethrj, #1691)

• Remove macro setup from celer-g4 (@sethrj, #1710)

• Remove per-process switch for integral cross section method (@amandalund, #1734)

• Remove celer-dump-data app (@amandalund, #1740)

Reviewers

• Seth R. Johnson (@sethrj): 89

• Amanda Lund (@amandalund): 68

• Philippe Canal (@pcanal): 22

• Stefano Tognini (@stognini): 10

• Guilherme Lima (@mrguilima): 9

• Julien Esseiva (@esseivaju): 7

• Elliott Biondo (@elliottbiondo): 5

• Soon Yung Jun (@whokion): 3

Full Changelog: https://github.com/celeritas-project/celeritas/compare/v0.5.0…v0.6.0