Issues

• Polyalgorithm of Simple* methods: init + solve! throws FieldError (NonlinearSolveNoInitCache has no field fu)

  SciML/NonlinearSolve.jl#1348 · Filter by author ChrisRackauckas-Claude opened on Oct 1, 2026
  3

• Wrong derivatives with Success retcode when Duals are in a non-AbstractArray p (Broyden diverges, TrustRegion gives NaN)

  SciML/NonlinearSolve.jl#1341 · Filter by author ChrisRackauckas-Claude opened on Sep 28, 2026

• master red on Downgrade Sublibraries NonlinearSolveFirstOrder: Enzyme ccall TypeError SVector vs Vector in TrustRegion/Moré

  SciML/NonlinearSolve.jl#1337 · Filter by author ChrisRackauckas-Claude opened on Sep 26, 2026

• master red on NonlinearSolveFirstOrder [QA]: RobustTrustRegionLinsolve not public (all_explicit_imports_are_public)

  SciML/NonlinearSolve.jl#1336 · Filter by author ChrisRackauckas-Claude opened on Sep 26, 2026

• master red on Adjoint CI: ArgumentError NamedTuple values/coeffs vs DespecializedParameters params keys

  SciML/NonlinearSolve.jl#1334 · Filter by author ChrisRackauckas-Claude opened on Sep 26, 2026

• master red on lib/NonlinearSolveFirstOrder GROUP=Core: Enzyme.Compiler.ThunkCallError, bisects to Enzyme v0.13.203 (good) -> v0.13.204 (bad)

  SciML/NonlinearSolve.jl#1325 · Filter by author ChrisRackauckas-Claude opened on Sep 23, 2026

• PETScSNES: return code ignores SNES converged reason; reltol→snes_rtol makes PETSc-converged solves report Failure

  SciML/NonlinearSolve.jl#1318 · Filter by author ChrisRackauckas-Claude opened on Sep 23, 2026
  3

• Safe termination modes: patience stall check min_obj < min_max_factor*max_obj is always true

  SciML/NonlinearSolve.jl#1314 · Filter by author ChrisRackauckas-Claude opened on Sep 23, 2026
  1

• Stagnation checks ignore custom norms (problematic for MPI)

  bug
  SciML/NonlinearSolve.jl#1310 · Filter by author Iddingsite opened on Sep 22, 2026
  1

• Bounded LevenbergMarquardt with AutoEnzyme stalls at the initial point

  SciML/NonlinearSolve.jl#1288 · Filter by author jstrubeAtWork opened on Sep 14, 2026

• Broyden/Klement on a Dual-valued NonlinearProblem: partials grow unboundedly while only value residuals are checked for convergence

  SciML/NonlinearSolve.jl#1283 · Filter by author ChrisRackauckas-Claude opened on Sep 14, 2026

• Move the bounded finite-difference Jacobian stencil upstream to FiniteDiff.jl / DI

  SciML/NonlinearSolve.jl#1274 · Filter by author ChrisRackauckas-Claude opened on Sep 13, 2026

• Bounded defaults fail for mixed scalar and array state/residual shapes

  SciML/NonlinearSolve.jl#1270 · Filter by author ChrisRackauckas-Claude opened on Sep 13, 2026

• Roadmap for native box-constrained nonlinear and least-squares solvers

  enhancementnew-algorithm
  SciML/NonlinearSolve.jl#1254 · Filter by author ChrisRackauckas-Claude opened on Sep 12, 2026

• JacobianReuse default should key off Jacobian cost, not length(u0)

  SciML/NonlinearSolve.jl#1216 · Filter by author ChrisRackauckas-Claude opened on Aug 29, 2026

• EisenstatWalkerForcing2 adapts from a two-iteration-stale residual ratio

  SciML/NonlinearSolve.jl#1170 · Filter by author ChrisRackauckas-Claude opened on Aug 15, 2026
  1

• True-Jacobian Broyden Wood test regressed on macOS with LinearSolve 5.7

  SciML/NonlinearSolve.jl#1158 · Filter by author ChrisRackauckas-Claude opened on Aug 11, 2026
  3

• NonlinearSolve master cannot resolve until new sublibrary versions are registered

  SciML/NonlinearSolve.jl#1155 · Filter by author ChrisRackauckas-Claude opened on Aug 11, 2026
  1

• Julia 1.10 downstream resolution fails against unreleased sublibrary compat floors

  SciML/NonlinearSolve.jl#1154 · Filter by author ChrisRackauckas-Claude opened on Aug 10, 2026

• LevenbergMarquardt init crashes with a SciMLOperator jac_prototype: vcat in DampedNewtonDescent builds Matrix{Any}

  SciML/NonlinearSolve.jl#1132 · Filter by author singhharsh1708 opened on Jul 30, 2026

• Watson true-Jacobian Broyden is OpenBLAS-kernel sensitive after #1039

  bug
  SciML/NonlinearSolve.jl#1078 · Filter by author ChrisRackauckas-Claude opened on Jul 15, 2026

• NLSHC all-roots test flakes when HC drops randomized paths

  SciML/NonlinearSolve.jl#1064 · Filter by author ChrisRackauckas-Claude opened on Jul 13, 2026

• Homotopy cache drivers fail on scalar (Number) states; SimpleHomotopySweep works

  SciML/NonlinearSolve.jl#1037 · Filter by author ChrisRackauckas-Claude opened on Jul 11, 2026

• Sublibrary QA fails Aqua stale_deps/deps_compat on Julia lts when [sources] reaches the umbrella root

  SciML/NonlinearSolve.jl#971 · Filter by author ChrisRackauckas-Claude opened on Jun 13, 2026

• format-check failing on master since #961: sublibrary test/runtests.jl not Runic-formatted

  SciML/NonlinearSolve.jl#969 · Filter by author ChrisRackauckas-Claude opened on Jun 12, 2026