.. Copyright Celeritas contributors: see top-level COPYRIGHT file for details
.. SPDX-License-Identifier: CC-BY-4.0

Series 0.7
==========

Major development version 0.7 can be cited through its Zenodo code release
:cite:p:`celeritas-0-7`.

.. _release_v0.7.0:

Version 0.7.0
-------------
*Released 2026/10/11*

Version 0.7.0 is a long-overdue major update to Celeritas featuring many new capabilities.

- Optical physics is now fully supported, including surface properties, Geant4
  process integration, and Mie/WLS processes.
- A LArSoft plugin that stands in for PDFastSimPar uses full-fidelity MC transport
  on CPU or GPU for optical photon transport from simulated energy deposition.
- The EM tracking loop is now asynchronous (relying on built-in CUDA asynchronous
  streaming and events rather than an additional control thread).
- ORANGE geometry navigation is now substantially faster and now
  completely supports Geant4 quadric solids.
- G4 tracking manager integration is now set up automatically rather than
  requiring BeginOfRun/EndOfRun actions.

Major known deficiencies include:

- Surface normal calculations for VecGeom is unsupported, so optical physics
  will be wrong if any surface physics is used.
- The behavior of reflectivity/efficiency grids acting as pure absorbers
  around sensitive detector regions (i.e., black boxes for splicing)
  currently differs from Geant4.
- Tessellated solids are not supported when using ORANGE.

Changes since v0.6.0, excluding those released in v0.6.3, 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)*
* Support single-precision Geant4->ORANGE conversion *(@sethrj, #1870)*
* Provide canonical volume and instance IDs from ORANGE *(@sethrj, #1886)*
* Add optical surface physics input and import surface physics data from Geant4 *(@stognini, #1862)*
* Add ORANGE track debugging utilities *(@sethrj, #1911)*
* Enable muon physics and add user-defined list of offloaded particles  *(@stognini, #1910)*
* Add smear and Gaussian surface roughness calculators *(@hhollenb, #1896)*
* Enable optical SetupOptions and allow Rayleigh when some materials lack MFP *(@Rashika-Gupta, #1913)*
* Add optical surface physics *(@hhollenb, #1801)*
* Implement Geant4 geometry normals and refactor/add tests *(@sethrj, #1934)*
* Create placeholder SDs when loading GeantGeoParams from GDML *(@sethrj, #1949)*
* Add surface normal state to optical surface physics *(@hhollenb, #1922)*
* Add log code to print executable/source/dependency locations *(@sethrj, #1952)*
* Simplify CSG expressions with two opposite clauses *(@sethrj, #1946)*
* Adds Detectors to model input and builds the detectors from G4 sensitive detectors *(@lebuller, #1955)*
* Skip wavelength shift model without data during optical model import *(@Rashika-Gupta, #1963)*
* Improve optical setup and testing *(@sethrj, #1970)*
* Support G4MultiUnion in ORANGE *(@elliottbiondo, #1987)*
* Allow use of VecGeom solid model for surface-enabled build *(@sethrj, #1993)*
* Improve autodetection of ANSI color support *(@sethrj, #1999)*
* Add SurfaceModelView to optical surface physics *(@hhollenb, #1980)*
* Add json event reader and writer *(@amandalund, #2004)*
* Add polished surface roughness model *(@hhollenb, #2006)*
* Check vecgeom navindex table for consistency *(@sethrj, #2000)*
* Implement Mie scattering  *(@Rashika-Gupta, #1933)*
* Refactor dielectric model *(@hhollenb, #2008)*
* Add profiling capabilities to `celer-geo` *(@sethrj, #2011)*
* Add SurfaceInteractionApplier and implement PostBoundaryAction *(@hhollenb, #2020)*
* Make ORANGE conversion/construction options configurable *(@sethrj, #2018)*
* Add regions to model input *(@amandalund, #2023)*
* Add OpNovice GDML optical geometry and integration test *(@Rashika-Gupta, #2016)*
* Code coverage *(@pcanal, #2013)*
* Add G4Tet conversion to ORANGE *(@sethrj, #2032)*
* Improve perfetto logger/failure integration *(@sethrj, #2040)*
* Add orange diagnostic output to celer-geo *(@sethrj, #2036)*
* Add support for G4CutTubs *(@elliottbiondo, #2051)*
* Create .github/.codecov.yml, loosen test requirement *(@pcanal, #2062)*
* Add Fresnel reflectivity, refraction, and UNIFIED reflection calculators *(@hhollenb, #1984)*
* Add a trivial surface interaction model *(@hhollenb, #2061)*
* Improve orange csg output and geocel test harness *(@sethrj, #2056)*
* Add Geant4 options to unit test and build output *(@sethrj, #2076)*
* Support G4Hype *(@sethrj, #2090)*
* Enable checking of integration tests for older Geant4 versions *(@sethrj, #2089)*
* Support offloading optical distributions to Celeritas standalone optical loop *(@amandalund, #2092)*
* Reconstruct canonical volumes directly from ORANGE track view *(@sethrj, #2096)*
* Update VecGeom support for 2.0 solid and surface *(@mrguilima, #1720)*
* Support timing optical actions *(@amandalund, #2101)*
* Replace thrust calls with cub towards reducing CPU synchronization *(@LSchwiebert, #2068)*
* Add input option for infix notation *(@esseivaju, #1565)*
* Add direct optical photon generator *(@hhollenb, #2104)*
* Add initial skeleton implementation of the gamma-nuclear process *(@whokion, #2105)*
* Add optical surface integration tests *(@hhollenb, #2112)*
* Add grid-based sampling for scintillation spectra *(@Rashika-Gupta, #2100)*
* Add helper classes for managing aux data *(@sethrj, #2120)*
* Add CODEOWNERS and update roles *(@sethrj, #2113)*
* Make optical primary generator distributions configurable *(@amandalund, #2122)*
* Add Ranluxpp Random Number Generator *(@davidsgr, #2001)*
* Add muon-catalyzed fusion inp:: skeleton and basic import *(@stognini, #2125)*
* Support RANLUX++ as core RNG *(@sethrj, #2141)*
* cuda rdc: Check for -z undefs only when CUDA enabled *(@pcanal, #2143)*
* Add Ferrari-Cardano algorithm and general Quartic Solver test suite *(@osanstrong, #2010)*
* Support different CODATA measured constants with `CELERITAS_CODATA` config option *(@sethrj, #2159)*
* Add LArSoft plugin skeleton *(@sethrj, #2154)*
* Add an option to kill optical tracks after a specified number of steps *(@amandalund, #2161)*
* Add CHIPS gamma-nuclear cross sections  *(@whokion, #2149)*
* Add a `celer-config` app and milan2 config *(@sethrj, #2172)*
* Add an initial support for electro-nuclear process and model  *(@whokion, #2170)*
* Implement Celeritas-DD4hep integration plugin *(@rahmans1, #1756)*
* Use a reasonable project version for shallow clones *(@sethrj, #2175)*
* Add NO_COLOR support and new env helper *(@sethrj, #2179)*
* Link against development LArSim *(@sethrj, #2180)*
* Add rng branching *(@davidsgr, #2155)*
* Add builtin surface roughness models *(@hhollenb, #1928)*
* Improve messaging from multi-exception handler *(@sethrj, #2196)*
* Add copilot agent instructions *(@sethrj, #2195)*
* Add muon-catalyzed fusion process/model skeletons *(@stognini, #2174)*
* Simplify errors when initialization fails *(@sethrj, #2198)*
* Move global CoreStateCounters to the GPU *(@LSchwiebert, #2177)*
* Extract splitmix64 rng *(@davidsgr, #2200)*
* Add standalone optical runner *(@amandalund, #2197)*
* Switch to infix tracking to accelerate ORANGE point-in-volume (#2121) *(@esseivaju, #2121)*
* Add primary IDs to optical simulation *(@sethrj, #2204)*
* Add SD mapping params to core and optical data *(@sethrj, #2203)*
* Add JSON serialization for distribution inputs *(@amandalund, #2210)*
* Add JSON serialization for optical standalone input *(@amandalund, #2212)*
* Add MuCF interactor for muonic dt molecules *(@stognini, #2211)*
* Move Optical Core State Counters to Device *(@LSchwiebert, #2208)*
* Add generic G4 field adapter and add field testing *(@sethrj, #2218)*
* Add standalone optical app *(@amandalund, #2219)*
* Add options for constructing an ORANGE geometry *(@elliottbiondo, #2045)*
* Modify ORANGE tracking assertions for production-level problems *(@elliottbiondo, #2224)*
* Add abstract interface to CUDA/HIP events *(@sethrj, #2226)*
* Add muCF atom and spin selectors *(@stognini, #2216)*
* Add MuCF interactor for muonic dd molecules *(@stognini, #2236)*
* Store BIH metadata and write to JSON *(@elliottbiondo, #2244)*
* Accelerate ORANGE construction by two orders of magnitude *(@sethrj, #2249)*
* Make proto construction independent of hardcoded runtime tracking *(@sethrj, #2239)*
* Improve ORANGE construction performance by presizing label vectors *(@sethrj, #2246)*
* BIH depth limit *(@elliottbiondo, #2251)*
* Add error checking to vecgeom track view *(@sethrj, #2245)*
* Investigate and simplify ORANGE construction warning/debug messages  *(@sethrj, #2247)*
* Improve surface deduplication reproducibility and performance *(@sethrj, #2253)*
* Use smarter surface hash points for cyl and general quadrics *(@sethrj, #2254)*
* Locate volume instance containing global point *(@hhollenb, #2250)*
* Add optical sensitive detectors *(@hhollenb, #2215)*
* Import muCF cycle rate data and construct muCF model  *(@stognini, #2240)*
* Sample scintillation photon emission time from step times when speed is unavailable *(@amandalund, #2257)*
* Add LArSoft data export module and reader *(@stognini, #2256)*
* Offload distributions and transport photons in `LarStandaloneRunner` *(@amandalund, #2273)*
* Add user-defined grid reflectivity for optical physics *(@hhollenb, #2266)*
* Add BIHStructure for json output *(@elliottbiondo, #2268)*
* Add flag for specifying the number of BIH partition candidates *(@elliottbiondo, #2274)*
* Add optical front painted and back painted surface support *(@hhollenb, #2276)*
* Find optical material ID from pre-step point *(@amandalund, #2280)*
* Add optical only reflection model *(@hhollenb, #2279)*
* Store geometry to optical material ID mapping in `GeantGeoParams` *(@amandalund, #2287)*
* Add Toroid surface *(@osanstrong, #2158)*
* Refactor larceler component into a module *(@sethrj, #2285)*
* Use optical photon group velocity for along step time calculation *(@hhollenb, #2282)*
* Enable optical photon track offloading from Geant4 to Celeritas *(@Rashika-Gupta, #2241)*
* Add per track reseeding *(@davidsgr, #2229)*
* Allow geant geo params to be saved during detector construction *(@sethrj, #2295)*
* Add helpers for array type, precision, and quantity conversion *(@sethrj, #2223)*
* Integrate detector hits with larsoft *(@sethrj, #2278)*
* Add an interface for invoking the PostStepDoIt action of Geant4 hadronic process *(@whokion, #2302)*
* Accumulate and report cut/error counters for optical and EM tracks *(@sethrj, #2307)*
* Improve consistency of scintillation/Cherenkov import with Geant4 *(@sethrj, #2303)*
* Add geometry status for robust reentrant boundary handling *(@sethrj, #2312)*
* Add volume params and view to core data *(@sethrj, #2316)*
* Add pre-commit script to clean ASCII files *(@sethrj, #2319)*
* Optimize depth finding for large number of touchable histories *(@sethrj, #2317)*
* Improve performance of BIH lookup with maximum search distance *(@elliottbiondo, #2323)*
* Add neutron capture cross sections and associated process *(@whokion, #2321)*
* Improve agent commit behavior and add vscode debugging script *(@sethrj, #2337)*
* Use robust boundary state for Geant4 navigator wrapper *(@sethrj, #2328)*
* Define and map a scalar "volume unique instance" between a navigation path *(@sethrj, #2322)*
* Add SpanUtils.hh with Span-based math functions *(@sethrj, #2336)*
* Add covfie binary field map loaders *(@rahmans1, #2335)*
* Add optical WLS secondary generation *(@amandalund, #2339)*
* Refactor LdgIterator into wrapper function and ADL access *(@sethrj, #2343)*
* Add JSON reader and writer for optical distribution data *(@amandalund, #2352)*
* Add implicit constructor to Span *(@sethrj, #2348)*
* Make OpaqueId more like `std::optional` *(@sethrj, #2355)*
* Pr/rzmap covfie backend *(@rahmans1, #2344)*
* Optimize BIH/bounding box to improve DUNE performance *(@elliottbiondo, #2359)*
* Implement slab method for ray-bbox intersection *(@elliottbiondo, #2374)*
* Add bare-metal Spack and apptainer UPS support for milan2 *(@sethrj, #2365)*
* Add custom Geant4 Cherenkov and scintillation processes to offload generator distributions *(@hhollenb, #2378)*
* Add G4 state monitor *(@sethrj, #2380)*
* Improve traversal in BIHEnclosingVolFinder *(@elliottbiondo, #2377)*
* Add optical step diagnostic *(@amandalund, #2386)*
* Add LLDB synthetic/summary helper classes for improved debugging *(@sethrj, #2383)*
* Rewrite MiniStack to use for BIH traversal *(@sethrj, #2385)*
* Improve CUDA profiling with default NVTX and ranged kernels *(@sethrj, #2389)*
* Support recording step times in optical loop and refactor step time storage as aux data *(@amandalund, #2387)*
* Use separating axis test to speed up ORANGE propagation by 20% *(@sethrj, #2391)*
* Add LDG support for array, bbox *(@sethrj, #2399)*
* Support efficient VolumeUniqueInstanceId construction in geo navigators *(@sethrj, #2404)*
* Add VolumeUniqueInstanceId to optical detector hits *(@hhollenb, #2402)*
* Add OpenMP and ORANGE diagnostics to output *(@sethrj, #2413)*
* Add reseed to config *(@davidsgr, #2414)*
* Skip geometry initialization when locating missing optical material if only one material is present *(@amandalund, #2417)*
* Add overlap fraction consideration to BVH partitioning *(@elliottbiondo, #2419)*
* Add optical detector callbacks through accel setup *(@Rashika-Gupta, #2416)*
* Enable profiling through Instruments on macOS *(@sethrj, #2421)*
* Enable autovectorization of bbox intersect and fix logical all *(@sethrj, #2423)*
* Add FHiCL files for FastSim and Celeritas LArSoft workflows; Add analyzer module *(@stognini, #2318)*
* Add JSON IO for `inp::StandaloneInput` *(@amandalund, #2425)*
* Use `inp::StandaloneInput` for celer-sim *(@amandalund, #2428)*
* Integrate Toroidal surfaces into ORANGE construction *(@osanstrong, #2427)*
* Add CI jobs for gcc15 and clang22 *(@esseivaju, #2436)*
* Improve few-active-track GPU optical performance *(@sethrj, #2450)*
* Add asynchronous Stepper launch and completion *(@esseivaju, #2446)*
* Improve LarSoft integration and correctness *(@sethrj, #2465)*
* Asynchronously copy primaries to device in LocalTransporter *(@esseivaju, #2406)*
* Add placeholder models for EM-nuclear processes *(@whokion, #2466)*
* Add universe metadata+structure to JSON output, make universe DAG dot graphs *(@elliottbiondo, #2475)*
* Refactor and update github CI actions *(@sethrj, #2473)*
* Add covfie field-map support to DD4HEP plugin *(@rahmans1, #2448)*
* Check CUDA compute compatibility at configure time, not build time *(@sethrj, #2470)*
* Add cron job to build off VecGeom master *(@esseivaju, #2482)*
* Implement check on Celeritas-Geant4 fast simulation particle consistency *(@drbenmorgan, #2333)*
* Make detector construction output reproducible and debuggable *(@sethrj, #2487)*
* Support component-specific scintillation photon generation *(@amandalund, #2485)*
* Add CI regression testing of accel integration tests *(@sethrj, #2479)*
* Move scoring out of async step launch *(@esseivaju, #2468)*
* Add initial integration of VecGeom navigator view *(@sethrj, #2489)*
* Improve support and testing for G4 with vecgeom-based solids *(@sethrj, #2495)*
* Use clang-tidy-diff for changed files *(@pcanal, #2490)*
* Add additional diagnostics to checked geo output *(@sethrj, #2505)*
* Support Geant4 11.4 *(@sethrj, #2499)*
* Automatically initialize and finalize Celeritas when using TrackingManager *(@rahmans1, #2381)*
* Refactor CI doc build and deploy *(@sethrj, #2508)*
* Precompute optical group velocity grids *(@Rashika-Gupta, #2452)*
* Add file handles to output registry to allow multiple writes *(@sethrj, #2520)*
* Output Celeritas diagnostics from within LArSoft *(@sethrj, #2477)*
* Support merge groups for pull requests *(@sethrj, #2528)*
* Replace core state counter synchronization with device kernels and functors *(@LSchwiebert, #2376)*
* Split device step compaction into async and copy phases *(@esseivaju, #2534)*
* Enqueue HitProcessor hit compaction during async step *(@esseivaju, #2543)*
* Remove synchronization from initializer buffer capacity validation *(@amandalund, #2535)*
* Remove synchronization from init_charge track initialization *(@esseivaju, #2551)*
* Load versions from CUDA, HIP packages at configure time and work around ROCm errors *(@sethrj, #2547)*

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)*
* Fix volume params construction in model setup *(@amandalund, #1878)*
* Uniquely and consistently identify and map volume instances *(@sethrj, #1903)*
* Fix volume instance IDs for background volumes in ORANGE *(@sethrj, #1912)*
* Fix edge case where imported lambda and lambda prime tables have overlapping range *(@amandalund, #1936)*
* Fix ORANGE surface normal calculation on boundary of daughter universes *(@sethrj, #1942)*
* Fix initialization when starting on an internal surface *(@sethrj, #1947)*
* Fix sincos on device when math/Turn.hh is included *(@sethrj, #1951)*
* Fix data selection in `SetupOptions`` -> `` FrameworkInput` conversion *(@amandalund, #1959)*
* Fix offloaded particles in celer-g4 *(@amandalund, #1961)*
* Use consistent tolerance when checking for orthogonality *(@amandalund, #1972)*
* Approximate two-point scintillation spectra as a gaussian *(@Rashika-Gupta, #1983)*
* Fix setting CUDA heapSize through G4UI *(@esseivaju, #1989)*
* Fix option to kill tracks after user-specified number of steps *(@amandalund, #1995)*
* Move loading of celer-g4 setup options to after run manager construction *(@amandalund, #1996)*
* Fix build issues with AMD ROCm *(@elliottbiondo, #2007)*
* Allow degenerate G4Trd and reversed PolyCone used by ATLAS *(@sethrj, #2002)*
* Fix unsigned wraparound for `SurfaceTrackPosition` *(@amandalund, #2019)*
* Fix codecov deployment from master *(@sethrj, #2035)*
* Fix Mie scattering execution on device *(@amandalund, #2050)*
* Fix polysolid with zero-radius inner segment *(@sethrj, #2048)*
* Fix calculation of distribution index in optical photon generation *(@amandalund, #2053)*
* Fix opaque ID arithmetic for small integers *(@sethrj, #2071)*
* Re-enable code coverage  *(@pcanal, #2073)*
* Fix stack allocator/CUDA RDC weirdness *(@sethrj, #2075)*
* Fix G4Polyhedra with azimuthal truncation *(@elliottbiondo, #2054)*
* Fix construction of CMS polyhedra with discontinuities *(@elliottbiondo, #2085)*
* Add tests for unusual boundary crossing scenarios *(@sethrj, #2087)*
* Fix erroneous failure in gcov ci *(@pcanal, #2093)*
* Avoid optical state dynamic casts in test *(@sethrj, #2094)*
* Fix reentrant boundary crossing via surface physics *(@hhollenb, #2081)*
* Fix VecGeom 2 solids behavior by clearing last exited state *(@sethrj, #2118)*
* Fix uninitialized hit counter in `HitProcessor` *(@amandalund, #2137)*
* Fix vecgeom 2.x with CUDA *(@sethrj, #2136)*
* Reduce ORANGE state size for models with background volumes *(@elliottbiondo, #2139)*
* Fix field copy to device in hip build *(@esseivaju, #2144)*
* Fix document warnings related CI infrastructure *(@sethrj, #2148)*
* Use correct energy when generating Cherenkov and scintillation photons *(@amandalund, #2152)*
* Fix compile error with VecGeom `v2.0.0-rc.8` and Cuda *(@esseivaju, #2157)*
* Fix device linking of downstream applications with Covfie+CUDA *(@esseivaju, #2162)*
* Forward codecov secret to Spack workflow *(@esseivaju, #2166)*
* Fix VgNavIndex narrowing conversion *(@esseivaju, #2163)*
* Fix edge cases with optical setup and runtime *(@sethrj, #2191)*
* Fix `GeantOpticalPhysicsOptions` JSON serialization  *(@amandalund, #2214)*
* Warn and replace unphysical values in MFP grid *(@amandalund, #2217)*
* Fix construction of CylMapMagneticField from G4MagneticField *(@esseivaju, #2222)*
* Fix optical photon import for older Geant4 versions *(@amandalund, #2221)*
* Clamp out-of-bound indices in `CartMapField` *(@esseivaju, #2225)*
* Avoid integer overflow in `DeMorganSimplifier` for large geometries *(@amandalund, #2231)*
* Fix infinities and unions in bounding zone *(@sethrj, #2255)*
* Fix infinite safety distance edge case *(@sethrj, #2261)*
* Fix conversion of subtractions with no transforms *(@sethrj, #2269)*
* Remove spurious warning about importing G4OpBoundaryProcess *(@hhollenb, #2284)*
* Avoid `id_cast` when null ID is allowed *(@amandalund, #2286)*
* Use `std::optional` to disambiguate JSON physics setup *(@sethrj, #2291)*
* Notify user when using G4-incompatible scintillation spectrum *(@sethrj, #2259)*
* Add support for mixing Clang and GCC (as NVCC host). *(@pcanal, #2297)*
* Correctly set optical options in celer-sim *(@amandalund, #2301)*
* Fix errors and add warnings with optical properties *(@sethrj, #2306)*
* Fix back painted surface double interaction *(@hhollenb, #2314)*
* Allow detection in non-optical materials through an optical surface *(@sethrj, #2308)*
* Fix missing optical detector hits on GPU *(@hhollenb, #2334)*
* Fix accidental LdgSpan-to-Span conversion *(@sethrj, #2354)*
* Resolve warnings from nvcc and some older gcc compilers *(@LSchwiebert, #2366)*
* Hotfix: nvtx kernel names *(@sethrj, #2390)*
* Fix primary ID initialization *(@sethrj, #2310)*
* Fix missing copies of primary ID, post-step ID *(@sethrj, #2384)*
* Reduce branching in ORANGE and eliminate bbox checks in BIH leaf visits *(@elliottbiondo, #2405)*
* Kill optical tracks that hit world boundary *(@Rashika-Gupta, #2409)*
* Fix HIP unused-variable warning *(@sethrj, #2412)*
* Fix nvcc 13.3 compile error *(@esseivaju, #2415)*
* Validate G4LEVELGAMMADATA to avoid bizarre crashes in G4 field propagation *(@sethrj, #2424)*
* Fix mathjax rendering in Safari and other documentation issues *(@sethrj, #2430)*
* Fix gcc15 + CUDA 13.1 compile error *(@esseivaju, #2432)*
* Fix incorrect path of Host to Device covfie field copy *(@esseivaju, #2433)*
* Expose OpaqueId hash during device compilation *(@esseivaju, #2435)*
* Fix C++23 constexpr ODR usage issue in field *(@stephenswat, #2434)*
* Fix typo in Mie scattering ratio sampling *(@hhollenb, #2442)*
* Fix FerrariSolver *(@osanstrong, #2439)*
* Fix JSON serialization for control and grid enums *(@amandalund, #2443)*
* Use harmonic-mean grid derivatives for optical group velocity calculation *(@Rashika-Gupta, #2437)*
* Fix warnings with ROCm 7.14 *(@sethrj, #2453)*
* Fix BVH navigation when given a very large search distance *(@sethrj, #2471)*
* Fix stale geometry parent IDs when inserting primaries *(@amandalund, #2476)*
* Normalize USolids polycone conversion and test expectations *(@esseivaju, #2488)*
* Support VecGeom 2.0 and vastly improve performance by using BVH navigator *(@esseivaju, #2492)*
* Fix GeoTests with Geant4+USolids  *(@esseivaju, #2493)*
* Update VecGeom2 safety values *(@esseivaju, #2512)*
* Treat unsupported MSC step limit algorithm as error instead of warning *(@amandalund, #2524)*
* Initialize the RNG of in-place secondaries when reseeding each track *(@esseivaju, #2531)*
* Improve `LocalTransporter` cleanup after fatal errors *(@amandalund, #2541)*
* Improve compatibility with NVCC and older compilers *(@sethrj, #2546)*

Documentation and testing
^^^^^^^^^^^^^^^^^^^^^^^^^

* Release v0.6.0 *(@sethrj, #1688)*
* Add helper for accumulating histograms *(@sethrj, #1759)*
* Add zenodo citations to celeritas user manual *(@sethrj, #1762)*
* 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)*
* Remove spurious optical error messages *(@amandalund, #1881)*
* Add volume test base *(@sethrj, #1880)*
* Fix failing celer-sim unit test with simple calo *(@amandalund, #1927)*
* Add minimal extensible testing for Geant4 integration *(@sethrj, #1925)*
* Define EXPECT_NORMAL_EQUIV helper function *(@sethrj, #1944)*
* Use JSON reference for CSG tree *(@sethrj, #1943)*
* Add shell detectors around lAr sphere test problem *(@sethrj, #1948)*
* Add a test of UI command modification *(@sethrj, #1957)*
* Fix a few testing issues *(@amandalund, #1973)*
* Split corecel docs into multiple pages *(@sethrj, #1994)*
* Abandon sphinx-mermaid and add celerstruct directive *(@sethrj, #1988)*
* Add covfie device test *(@esseivaju, #1997)*
* Add optical physics documentation *(@sethrj, #2025)*
* Add JLSE env file *(@elliottbiondo, #2017)*
* Finish making JLSE env script POSIX compliant *(@elliottbiondo, #2028)*
* Add copyrights and consistent special name to workflow *(@sethrj, #2037)*
* Add TracingSession to documentation *(@sethrj, #2055)*
* Format python files *(@sethrj, #2065)*
* Update OpticalCollector device test for #1984 *(@LSchwiebert, #2070)*
* Update pre-commit hooks and add ruff *(@sethrj, #2064)*
* Fix run manager construction in integration test base *(@amandalund, #2083)*
* Define a GeoTrackInterface class for documentation and testing *(@sethrj, #2069)*
* Use dot instead of mermaid *(@sethrj, #2102)*
* Add ExCL MI300A environment *(@sethrj, #2138)*
* Improve geometry track view testing *(@sethrj, #2131)*
* Demonstrate stuck particle in ATLAS *(@sethrj, #1914)*
* Add documentation and debug statements about Geant4 logger redirection *(@sethrj, #2193)*
* Add optical physics AGENTS.md *(@sethrj, #2205)*
* Add grid documentation and fix detail build *(@sethrj, #2213)*
* Test grid deduplication *(@sethrj, #2227)*
* Improve testing for field and geo view *(@sethrj, #2230)*
* Improve testing for field integration edge case *(@sethrj, #2248)*
* Add DUNE mock cryostat/arapuca test geometry *(@sethrj, #2252)*
* Add Rayleigh and absorption mean free paths to DUNE cryostat GDML *(@amandalund, #2260)*
* Improve geometry track view testing *(@sethrj, #2262)*
* Fix VecGeom device test for #2263 *(@amandalund, #2270)*
* Fix solids GDML to avoid ORANGE discrepancy *(@sethrj, #2267)*
* Implement basic unit tests for FastSimulationIntegration *(@drbenmorgan, #2299)*
* Document optical surface physics *(@sethrj, #2277)*
* Add AI contribution section and update AGENTS file *(@sethrj, #2315)*
* More tweaks to AGENTS file *(@sethrj, #2324)*
* Prevent `is_ci_build` from crashing when using built-in CLHEP *(@mrguilima, #2418)*
* Clarify the use of complex_intersect within background_intersect *(@elliottbiondo, #2429)*
* Expand user documentation on input and standalone apps *(@amandalund, #2445)*
* Add separate 'geo' logger to checked track view and move to core repo *(@sethrj, #2491)*
* Test geometry calls of the field propagator substep loop *(@esseivaju, #2503)*
* Add Claude Code skills and expand AGENTS.md *(@esseivaju, #2522)*
* Move documentation closer to the associated code *(@sethrj, #2538)*

Minor internal changes
^^^^^^^^^^^^^^^^^^^^^^

* Require covfie v0.14 *(@esseivaju, #1767)*
* 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)*
* Refactor geometry construction to use static methods and shared pointers *(@sethrj, #1864)*
* Move generators into optical namespace and refactor track generation utilities *(@amandalund, #1865)*
* Add `begin_run` to optical launch action *(@amandalund, #1868)*
* Rename LogicalFalse and LogicalTrue *(@pcanal, #1872)*
* Add volume params visitor *(@sethrj, #1874)*
* Refactor optical params and stepping loop for optical-only mode *(@amandalund, #1875)*
* Prevent splitting during ROOT I/O to reduce file size *(@amandalund, #1885)*
* Rename volumes to "implementation volumes" *(@sethrj, #1884)*
* Add mapping from ImplVolumeId to VolumeId *(@sethrj, #1889)*
* Work around spurious -Wmaybe-uninitialized warning with GCC *(@amandalund, #1891)*
* Update VolumeSurfaceSelector and optical BoundaryAction for oriented surfaces *(@hhollenb, #1876)*
* Refactor geo testing to use persistent Geant4 geometry *(@sethrj, #1895)*
* Add global VolumeParams and rename geant_geo->global_geant_geo *(@sethrj, #1905)*
* Allow constant values for R index *(@Rashika-Gupta, #1904)*
* Add uniform JSON IO to OpaqueId *(@sethrj, #1907)*
* Use canonical volumes for VecGeom *(@sethrj, #1901)*
* Make surface model its own hierarchy and add default surface *(@sethrj, #1909)*
* Only warn when imported particle data is larger than user-defined offload list *(@stognini, #1915)*
* Use IDs for some ORANGE indexing *(@sethrj, #1916)*
* Move model testing to geant geo test *(@sethrj, #1923)*
* Modularize and expose physics lists and PG generator *(@sethrj, #1918)*
* Impose minimum size to split leaf nodes during BIH construction *(@elliottbiondo, #1930)*
* Use double-precision energy for input energy distributions *(@sethrj, #1939)*
* Replace `ImportParticle`` with `` inp::Particle` *(@amandalund, #1953)*
* Define Geant particle view *(@sethrj, #1954)*
* Work around another spurious -Wmaybe-uninitialized warning with GCC *(@amandalund, #1969)*
* Use inp data for more physics *(@sethrj, #1976)*
* Remove `weight`` field from `` Secondary` *(@amandalund, #1985)*
* Add `CELER_` prefix to G4 material property names specific to Celeritas *(@sethrj, #1986)*
* Improve some nomenclature *(@sethrj, #1990)*
* Simplify perfetto integration *(@sethrj, #1998)*
* Use empty MFP grids to have zero cross section for model/material *(@sethrj, #2005)*
* Support unnormalized selection for a discrete PDF *(@sethrj, #2009)*
* Improve warning messages during ORANGE simplification *(@sethrj, #2024)*
* Only set MSVC warning when using MSVC *(@pcanal, #2033)*
* Use a single generator action and distribution buffer for Cherenkov and scintillation *(@amandalund, #2034)*
* Refactor traits for opaque ID, quantity, LDG *(@sethrj, #2074)*
* Add UnivLevel and rename Level to VolumeLevel *(@sethrj, #2063)*
* Add data() getter functions for the DeviceAllocation class *(@LSchwiebert, #2078)*
* Refactor and extend optical setup and generation for standalone loop support *(@amandalund, #2082)*
* Use opaque ID rather than integer for physics offset *(@sethrj, #2088)*
* Silence some egregious shadowing warnings *(@sethrj, #2095)*
* Upgrade CI docker image to ROCm 7.1 *(@LSchwiebert, #2091)*
* Tweak optical offload settings and construction *(@amandalund, #2099)*
* Use a single `ActionSequence` across all states *(@amandalund, #2108)*
* Add customization of trivial traits to support some GPU types *(@sethrj, #2114)*
* Use type aliases for vecgeom and simplify detail headers *(@sethrj, #2115)*
* Move isotropic and uniform box distributions to corecel *(@amandalund, #2128)*
* Fix spurious warning when loading scintillation properties and update device tests *(@amandalund, #2129)*
* Rename SenseCalculator *(@esseivaju, #2130)*
* Remove hidden state from VecGeom *(@sethrj, #2116)*
* Reverse build order of protos *(@elliottbiondo, #2109)*
* Validate and document Ranluxpp generator *(@sethrj, #2132)*
* Fail on ROOT dictionary generation warning *(@pcanal, #2145)*
* Move `Grid` input to corecel/inp *(@amandalund, #2146)*
* Rename g4org::Options to orange::inp::OrangeGeoFromGeant *(@sethrj, #2134)*
* Simplify CODEOWNERS *(@sethrj, #2150)*
* Set up A100 environment on ExCL *(@sethrj, #2147)*
* Support builds on fnal-dev-sl7 on scisoftbuild01 *(@sethrj, #2153)*
* Hide known warnings and reduce verbosity related to Geant4 geometry and tracker *(@sethrj, #2151)*
* Cleanup build script output *(@esseivaju, #2156)*
* Simplify codeowners again *(@sethrj, #2167)*
* Use local energy deposition to determine if scintillation photons should be sampled at collision site *(@amandalund, #2160)*
* Use Vecgeom2 solids in CI job *(@esseivaju, #2164)*
* Remove branching in CylMapField evaluation *(@esseivaju, #2169)*
* Fix ExCL env script *(@elliottbiondo, #2171)*
* Refactor along-step energy loss applier *(@sethrj, #2173)*
* Document and add checks about tracking manager construction *(@sethrj, #2183)*
* Ignore `BUILTIN_X`` when `` CELERITAS_USE_X` is false *(@sethrj, #2186)*
* Centralize default capacity values *(@amandalund, #2185)*
* Fix InitializedValue semantics *(@sethrj, #2181)*
* Disable debug assertions for code coverage tests *(@sethrj, #2184)*
* Add optical problem input and setup *(@amandalund, #2189)*
* Hotfix: build errors in 2191 *(@sethrj, #2192)*
* Fix ddceler build error due to IWYU  *(@sethrj, #2188)*
* Add checks for container validity to improve coverage *(@sethrj, #2190)*
* Simplify along-step propagation *(@sethrj, #2187)*
* Refactor logger handles *(@sethrj, #2182)*
* Tweak optical problem setup *(@sethrj, #2199)*
* Debug and fix CUDA RDC linking issue in heuristic geo *(@sethrj, #2202)*
* Rename SDParams and move to geocel *(@sethrj, #2201)*
* Rename and slightly refactor G4 track reconstruction helper *(@sethrj, #2206)*
* Add track offload interface base class *(@Rashika-Gupta, #2207)*
* Add JSON IO for cumulative tracking counters *(@amandalund, #2220)*
* Rename old classes to ``ParamsDataStore`` , `StateDataStore` *(@sethrj, #2228)*
* Rename min_split_size to max_leaf_size *(@elliottbiondo, #2233)*
* Add User-defined literals for units *(@esseivaju, #2234)*
* Use unordered containers in DeMorganSimplifier *(@esseivaju, #2232)*
* Use User-defined literals *(@esseivaju, #2235)*
* Refactor logic builder and related utilities *(@sethrj, #2238)*
* Eliminate identity rotations from displaced solids *(@sethrj, #2258)*
* Check for unimplemented optical surface properties *(@sethrj, #2264)*
* Consolidate stream operators into the classes that need them *(@sethrj, #2265)*
* Tweak Geant4 physics options and construction to support Celeritas optical-only LArSoft use case *(@amandalund, #2271)*
* Fix template deduction bug *(@elliottbiondo, #2281)*
* Improve optical physics construction consistency with G4 *(@sethrj, #2289)*
* Add make_ref for collections *(@sethrj, #2293)*
* Refactor geant physics process loading *(@sethrj, #2290)*
* Make python required for docs/tests *(@sethrj, #2296)*
* Refactor optical model data into `inp::BulkOpticalPhysics` *(@sethrj, #2292)*
* Fix python configure errors due to #2296 *(@sethrj, #2300)*
* Add truncated distribution sampler *(@amandalund, #2304)*
* Reorganize surface helper functions *(@sethrj, #2305)*
* Rename StreamToString to StreamUtils and move enum IO to it *(@sethrj, #2311)*
* Rename ORANGE volume and view for consistency *(@sethrj, #2313)*
* Use GeantParticleView and avoid deprecated GetDefinition *(@sethrj, #2325)*
* Move MuPPET table to GeantPhysicsLoader *(@sethrj, #2320)*
* Refactor and simplify optical bulk model input and construction *(@amandalund, #2329)*
* Add Rivanna cmake presets and environment script *(@hhollenb, #2331)*
* Define views for Geant4 step/track integration *(@sethrj, #2209)*
* Remove celeritas includes from downstream and more IWYU *(@sethrj, #2340)*
* Use std::size_t for Array *(@sethrj, #2341)*
* Make operators inline friends to improve template matching *(@sethrj, #2347)*
* Add a helper for sampling polarization orthogonal to direction *(@amandalund, #2350)*
* Adjust and document optical surface traversal *(@sethrj, #2345)*
* Disentangle array/span includes *(@sethrj, #2353)*
* Refactor collection traits and return types *(@sethrj, #2351)*
* Add Constant and integral udl *(@esseivaju, #2358)*
* Use Constant udl *(@esseivaju, #2356)*
* Use real_type UDL *(@esseivaju, #2360)*
* Use size_type UDL *(@esseivaju, #2361)*
* Test volume intersection count in BIH *(@sethrj, #2362)*
* Make NVTX range names consistent across kernels and apps *(@sethrj, #2364)*
* Improve rejection sampler *(@sethrj, #2372)*
* Tighten bboxes and improve edge traversal *(@elliottbiondo, #2375)*
* Fix IWYU errors and use `std::{whatever}_t` *(@sethrj, #2382)*
* Separate optical distribution loading from transport timing *(@amandalund, #2394)*
* Fix BIH internal types and improve BIH output *(@sethrj, #2393)*
* Define BIH node view to make data layout changes easier to test *(@sethrj, #2398)*
* Allow G4 geo to keep persistent volume params *(@sethrj, #2396)*
* Refactor bbox to allow performance testing of transpose storage *(@sethrj, #2400)*
* Infrastructure: update pre-commit and clang-format, use SOURCE_DATE_EPOCH *(@sethrj, #2401)*
* Add additional validation and testing to Cherenkov offload and array utils *(@sethrj, #2407)*
* Remove unused bounding_plane_pos and update BIH dot graph script *(@elliottbiondo, #2410)*
* BIH -> BVH rename *(@elliottbiondo, #2411)*
* Update actions *(@sethrj, #2420)*
* Reduce short-circuiting in intersect_segment *(@elliottbiondo, #2422)*
* Add ldg function to Range *(@sethrj, #2426)*
* Resolve `inp::Control` defaults in problem setup and tweak default capacity values *(@amandalund, #2438)*
* Update clang-format *(@sethrj, #2441)*
* Update clang-format again to fix vscode *(@sethrj, #2449)*
* Use JSONL for contributor/collaborator list *(@sethrj, #2454)*
* Use new spack environment on ExCL and support AlmaLinux9 *(@sethrj, #2440)*
* Work around GCC 8.5 compiler error *(@tghaddar, #2462)*
* Work around GCC 8.5 compiler bug *(@tghaddar, #2463)*
* Generalize Poisson distribution to allow zeros *(@sethrj, #2408)*
* Fix missing include path for MPI *(@sethrj, #2467)*
* Add 'prettier' pre-commit hook for JSON, YAML *(@sethrj, #2472)*
* Add track and step fields to optical detector hits *(@Rashika-Gupta, #2444)*
* Fix VecGeom 2.2-dev build *(@esseivaju, #2481)*
* Fix VecGeom 2.2-dev CUDA build *(@esseivaju, #2484)*
* Improve CI and enable C++23 *(@sethrj, #2478)*
* Add pre-advance to RayleighInteractor *(@davidsgr, #2469)*
* Add env script for secretariat *(@sethrj, #2494)*
* Move checked geo track view to main code and add additional assertions *(@sethrj, #2498)*
* Support basic Claude workflow *(@esseivaju, #2504)*
* Disable ROOT from clang-tidy build and when not requested *(@sethrj, #2513)*
* Use VecGeom 2.1 by default in CI *(@esseivaju, #2509)*
* Support clang-tidy for generated source files *(@pcanal, #2511)*
* Clear VecGeom last exited volume in SolidsNavigator *(@esseivaju, #2515)*
* Skip CUDA files without compilation commands in clang-tidy CI *(@pcanal, #2517)*
* Simplify agent instructions *(@sethrj, #2519)*
* Simplify presets and fix building against Geant4 build directory *(@sethrj, #2516)*
* Continue-on-error for tidy *(@sethrj, #2521)*
* Warn and skip sources without compile database entries on tidy-v2 *(@pcanal, #2523)*
* Add a container image for updating Spack buildcache *(@esseivaju, #2510)*
* Add debugging output and use `std::clog` consistently *(@sethrj, #2530)*
* Exclude nvcc commands from clang-tidy dependency scanning *(@pcanal, #2529)*
* Print canonical vecgeom and celeritas versions in nightly runs *(@sethrj, #2539)*
* Extract reusable thread-local processor slots from GeantSd *(@esseivaju, #2532)*
* Use InitializedValue to simplify ORANGE implementation code *(@sethrj, #2537)*
* More debugging for logger failure *(@sethrj, #2540)*
* Clean up asynchronous stepping algorithm code *(@sethrj, #2542)*
* Improve package config output *(@sethrj, #2544)*
* Move counter snapshots to `CoreState` and clarify parts of async stepping *(@amandalund, #2548)*
* Add FindX.cmake generator and modernize celeritas-gen python usage *(@sethrj, #2545)*

Deprecation and removal
^^^^^^^^^^^^^^^^^^^^^^^

* Remove combined bremsstrahlung model *(@amandalund, #1786)*
* Do not set `-Wall -Wextra -pedantic` by default *(@sethrj, #2098)*
* Remove temporary sense storage *(@esseivaju, #2127)*
* Remove SimpleOffload and other deprecations *(@sethrj, #2168)*
* Remove use of G4Backtrace *(@sethrj, #2176)*
* Delete unused run input conversion code *(@sethrj, #2178)*
* Remove polyprism *(@sethrj, #2194)*
* Remove infinite-distance boundary search *(@sethrj, #2263)*
* Begin refactor of optical "IO" to model-specific inp *(@sethrj, #2288)*
* Remove bitset *(@sethrj, #2342)*
* Remove UDLs *(@esseivaju, #2357)*
* Removed scoped mem and scoped time log *(@sethrj, #2388)*
* Remove infinite find-next-step *(@sethrj, #2392)*
* Reduce app output *(@sethrj, #2395)*
* Remove vecgeom surface support *(@sethrj, #2403)*
* Remove support for pre-release VecGeom 2 *(@sethrj, #2501)*
* Store native VecGeom navigation state in VecGeom track state *(@esseivaju, #2502)*
* Remove deprecations for 0.7 and add ORANGE track compatibility methods *(@sethrj, #2526)*
* Require VecGeom 2.2.0 in release series 2 *(@esseivaju, #2552)*

Reviewers
^^^^^^^^^

* Seth R. Johnson *(@sethrj)*: 280
* Amanda Lund *(@amandalund)*: 124
* Philippe Canal *(@pcanal)*: 60
* Elliott Biondo *(@elliottbiondo)*: 60
* Julien Esseiva *(@esseivaju)*: 59
* Stefano Tognini *(@stognini)*: 23
* Hayden Hollenbeck *(@hhollenb)*: 23
* Guilherme Lima *(@mrguilima)*: 18
* Rashika Gupta *(@Rashika-Gupta)*: 9
* Soon Yung Jun *(@whokion)*: 5
* Sakib Rahman *(@rahmans1)*: 4
* Loren Schwiebert *(@LSchwiebert)*: 4
* Ben Morgan *(@drbenmorgan)*: 2
* Lance Bullerwell *(@lebuller)*: 1
* Greg Davidson *(@davidsgr)*: 1

**Full Changelog**: https://github.com/celeritas-project/celeritas/compare/v0.6.0...v0.7.0