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 CMSSWFixes 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 itsCELER_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 enableCELERITAS_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 toNonuniform
(@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 buildaccel
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
withinp::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