NonlinearSolve.jl

NonlinearSolveQuasiNewton NonlinearSolveQuasiNewton-v1.13.2

Diff since NonlinearSolveQuasiNewton-v1.13.1

Merged pull requests:

• Fix construct_jacobian_cache inference via function barrier (#896) (@ChrisRackauckas-Claude)
• Drop Vector{Float64} specialization in NonlinearSolveBase tag stamping (#910) (@ChrisRackauckas-Claude)
• Fix flaky HC allroots "no real solutions" test (#914) (@ChrisRackauckas-Claude)
• fix: fix vector-form SCCNonlinearProblem with linear SCCs (#916) (@AayushSabharwal)
• Bump julia-actions/setup-julia from 2 to 3 (#918) (@dependabot[bot])
• Avoid dense N×N Jacobian allocation for Anderson (#862) (#919) (@ChrisRackauckas-Claude)
• Bump Sundials → 6 and OrdinaryDiffEqTsit5 → 2 (consolidates #921–#924) (#925) (@ChrisRackauckas-Claude)
• Include reference to the latest 2026 improvements in MDPI Algorithms (#926) (@Proektsoft-EOOD)
• Update to SciMLLogging 2.0 (#927) (@jClugstor)
• Add ModAB algorithm to precompilation workload (#931) (@Proektsoft-EOOD)
• Fix nested ForwardDiff over NonlinearLeastSquaresProblem default vjp (#932) (@ChrisRackauckas-Claude)
• Fix Ensemble Nonlinear Problems test under SciMLBase 3.x prob_func API (#934) (@ChrisRackauckas-Claude)
• NonlinearSolveBaseEnzymeExt: accumulate non-Tunable cotangent fields (#935) (#936) (@ChrisRackauckas-Claude)
• polyalg: add store_original::Val (default false) — fixes #878 (#938) (@ChrisRackauckas-Claude)
• Skip FunctionWrappersWrapper in maybe_wrap_nonlinear_f under Enzyme AD (#940) (@ChrisRackauckas-Claude)
• docs: fix linkcheck and cross-reference CI failures (#942) (@ChrisRackauckas-Claude)
• CompatHelper: bump compat for LogExpFunctions to 1 for package NonlinearSolveBase, (keep existing compat) (#943) (@github-actions[bot])
• NonlinearSolveBase: bring solve_up Enzyme rule to parity with DiffEqBase (MTK DAE init under runtime activity) (#944) (@ChrisRackauckas-Claude)
• NonlinearSolveBase: unwrap FunctionWrappersWrapper on the EnzymeOriginator adjoint path (MTK DAE init) (#946) (@ChrisRackauckas-Claude)
• NonlinearSolveBase: mark nonlinear-solve algorithms Enzyme-inactive (#947) (@ChrisRackauckas-Claude)
• Allow custom LineSearch algorithms in SimpleBroyden / SimpleLimitedMemoryBroyden (#948) (@AdityaPandeyCN)
• Add downgrade CI (centralized inherit form, allow_reresolve: false) (#949) (@ChrisRackauckas-Claude)
• ci: add centralized sublibrary downgrade CI (#950) (@ChrisRackauckas-Claude)
• ci: route CI through SciML/.github reusable workflows (@v1) (#951) (@ChrisRackauckas-Claude)
• ci: uniformize onto centralized CI (project-model SublibraryCI + cleanup) (#954) (@ChrisRackauckas-Claude)
• Fix bounds transform for problems with initialization data and quasi-Newton algorithms (#955) (@ChrisRackauckas-Claude)
• ci: remove CompatHelper / clean dependabot (#957) (@ChrisRackauckas-Claude)
• ci: add standard centralized workflows (auto-format, dependabot-automerge, docs-preview-cleanup) (#958) (@ChrisRackauckas-Claude)
• Drop now-invalid allow-reresolve input from downgrade workflow(s) (#959) (@ChrisRackauckas-Claude)
• Miscellaneous (minor) documentation updates (#960) (@abhro)
• test: uniformize monorepo onto OrdinaryDiffEq canonical structure (#961) (@ChrisRackauckas-Claude)
• Add HomotopySweep: natural-parameter continuation solver for HomotopyProblem (#962) (@BatchZero)
• Bump codecov/codecov-action from 6 to 7 (#963) (@dependabot[bot])
• Simplify root CI to grouped-tests.yml (matrix from test/test_groups.toml) (#964) (@ChrisRackauckas-Claude)
• QA: run ubuntu-only (drop os matrix from the QA group) (#965) (@ChrisRackauckas-Claude)
• Add QA (Aqua/JET) groups to sublibraries (SciML/.github#77) (#966) (@ChrisRackauckas-Claude)
• Normalize nopre -> QA (+ split AD/Enzyme) (#974) (@ChrisRackauckas-Claude)
• Migrate to SciMLTesting v1.2 (off ReTestItems) (#976) (@ChrisRackauckas-Claude)
• Fix NonlinearSolveSciPy test target: drop undeclared Hwloc dep (#978) (@ChrisRackauckas-Claude)
• Fix downgrade-sublibraries CI: raise stale compat floors (#979) (@ChrisRackauckas-Claude)
• Release 8 subpackage(s) (#980) (@ChrisRackauckas)
• Raise NonlinearSolveBase EnzymeCore floor to 0.8.16 (downgrade fix) (#982) (@ChrisRackauckas-Claude)
• Fix SCCNonlinearSolve downgrade: raise stale NonlinearSolveBase/FirstOrder/FunctionWrappers floors (#983) (@ChrisRackauckas-Claude)

Closed issues:

• Bug: NLsolveJL + SIAMFANLEquationsJL allocate a dense Jacobian for Anderson Acceleration (#862)
• Enzyme LLVM crash differentiating through NonlinearSolve on Julia 1.12 (#877)
• Enzyme: MixedReturnException with PolyAlgorithm + NamedTuple broadcast in reverse rule (#878)
• Cannot init(::NonlinearLeastSquaresProblem, NewtonRaphson()) with empty u0 (#912)
• Enzyme reverse-mode through solve(::NonlinearProblem) with MTKParameters having non-empty caches silently returns zero gradient (#935)
• Enzyme reverse-mode broken on NonlinearSolveBase.maybe_wrap_nonlinear_f — autospecialize FunctionWrappers defeats activity analysis (Julia 1.11) (#939)