v6.81.1

OrdinaryDiffEq v6.81.1

Diff since v6.81.0

Merged pull requests:

• Fix order of CompositeAlgorithm (#2239) (@ChrisRackauckas)

v6.81.0

OrdinaryDiffEq v6.81.0

Diff since v6.80.1

Merged pull requests:

• Switch RK methods to use an inf norm for eigen_est (#2204) (@oscardssmith)
• throw error for Rosenbrock23 on non-diagonal mass matrices (#2226) (@oscardssmith)
• fix Stepanov5 (#2230) (@oscardssmith)
• fix NonlinearSolveAlg to use new Nonlinear stats handling (#2231) (@oscardssmith)
• Allocate less in estimate_terk (#2232) (@chriselrod)
• Partial revert for ROW docs and fix of tableau docstrings (#2236) (@termi-official)
• Revert "Disable Default solver on windows" (#2237) (@ChrisRackauckas)

Closed issues:

• Performance drop in Julia 1.6 (#1422)
• The method Stepanov5 doesn't seem to work (#2188)
• autoswitch solvers can cause the stiff solver to fail (#2198)
• Rosenbrock23 fails for weird mass matrices (#2203)
• Add option to specify maximum number of consecutively rejected steps (#2229)
• Adaptivity fails for DAEs with non-continuous solution (#2238)

v6.80.1

OrdinaryDiffEq v6.80.1

Diff since v6.80.0

Merged pull requests:

• Introduce and propagate stage limiters for Rosenbrock methods. (#2220) (@termi-official)
• Documentation for Rosenbrock methods (#2222) (@termi-official)
• fix callbacks with default algorithm (#2225) (@oscardssmith)

v6.80.0

OrdinaryDiffEq v6.80.0

Diff since v6.79.0

Merged pull requests:

• for non-diagonal mass matrices, use linear interpolation (#2218) (@oscardssmith)
• Deduplicate Rosenbrock34 stage (#2219) (@termi-official)
• reduce default precompilation (#2221) (@oscardssmith)
• CompatHelper: bump compat for FastBroadcast to 0.3, (keep existing compat) (#2223) (@github-actions[bot])
• Disable Default solver on windows (#2224) (@oscardssmith)

Closed issues:

• Unsupported interpolator chosen when mass matrix is not diagonal (#2199)

v6.79.0

OrdinaryDiffEq v6.79.0

Diff since v6.78.0

Merged pull requests:

• relax check_error tests (#2208) (@oscardssmith)
• don't reset accept-step so SciMLBase.check_error can look at it (#2210) (@oscardssmith)
• initialize bitstype caches in DefaultCache (#2217) (@oscardssmith)

Closed issues:

• Hello everyone, (#2215)

v6.78.0

OrdinaryDiffEq v6.78.0

Diff since v6.77.1

Merged pull requests:

• Re-evaluate u_initial after DAE initialization (#1970) (@Keno)
• CompatHelper: bump compat for Documenter to 1 for package docs, (keep existing compat) (#2029) (@github-actions[bot])
• Redesign default ODE solver to be type-grounded and lazy (#2184) (@oscardssmith)
• Fix initialization size to not try/catch (#2202) (@ChrisRackauckas)
• CompatHelper: add new compat entry for SciMLStructures at version 1, (keep existing compat) (#2205) (@github-actions[bot])
• CompatHelper: add new compat entry for EnumX at version 1, (keep existing compat) (#2206) (@github-actions[bot])
• CompatHelper: add new compat entry for OrdinaryDiffEq at version 6 for package docs, (keep existing compat) (#2207) (@github-actions[bot])

v6.77.1

OrdinaryDiffEq v6.77.1

Diff since v6.77.0

Merged pull requests:

• avoid scalar indexing bug in hermite interpolant if diff_vars is a fill of trues (#2195) (@xtalax)

v6.77.0

OrdinaryDiffEq v6.77.0

Diff since v6.76.0

Merged pull requests:

• shorten timespan on initdt test (#2194) (@oscardssmith)
• I think this fixes a few minor bugs with nonlinear convergence (#2196) (@oscardssmith)
• Fix and test DPRKN interpolation with idxs (#2201) (@ChrisRackauckas)

v6.76.0

OrdinaryDiffEq v6.76.0

Diff since v6.75.0

Merged pull requests:

• Support NonlinearSolve.jl for the ODE nonlinear solver (#2167) (@oscardssmith)
• Adding Pseudo-Symplectic Explicit Runge-Kutta methods (#2174) (@MarcoArtiano)
• added step_limiter to RADAUIIA3,5 and made basic tests for step_limiter (#2176) (@cwittens)
• test(inplace_interpolation.jl): check for approx equality (#2181) (@characat0)
• refactor: use tunable parameters for cache in dae initialization (#2186) (@sathvikbhagavan)
• added step_limiter to more methods (#2190) (@cwittens)
• CompatHelper: add new compat entry for SciMLStructures at version 1, (keep existing compat) (#2191) (@github-actions[bot])
• fix dependent mass matrix tests (#2192) (@ChrisRackauckas)
• Fix relaxation test (#2193) (@ChrisRackauckas)

v6.75.0

OrdinaryDiffEq v6.75.0

Diff since v6.74.1

Merged pull requests:

• Implement 4th order Runge-Kutta-Nystrom method (#2161) (@Shreyas-Ekanathan)
• added ROS2 method and added ROS2, ROS23 and ROS34PW methods to iipvsoop_test.jl (#2165) (@cwittens)
• Added Runge–Kutta pairs of orders 9(8) for use in quadruple precision computations (#2166) (@Theozeud)
• Bump julia-actions/setup-julia from 1 to 2 (#2169) (@dependabot[bot])
• Modifications Rodas5Pe, Rodas5Pr of Rodas5P concerning issue #2054 and minor bug fixes of Rodas3P/23W (#2170) (@gstein3m)
• CompatHelper: bump compat for ADTypes to 1, (keep existing compat) (#2172) (@github-actions[bot])
• added algos to rosenbrock.md (#2175) (@cwittens)
• Fix issue #2173 divide-by-zero error (#2178) (@afossa)
• Bump version and release for downstream CI with ADTypes 1.0 (#2180) (@Vaibhavdixit02)

Closed issues:

• Investigate the possibility of StaticArrays tableau methods (#114)
• Analysis of time spent precompiling (#1937)
• Second-order Rosenbrock method of Verwer, Spee, Blom, Hundsdorfer (1999) (#2112)
• New Runge–Kutta pairs of orders 9(8) for use in quadruple precision computations (#2159)
• Plotting analytic solutions fails (#2162)
• Divide-by-zero error thrown during vector initialization (#2173)
• unstable_check gets passed value that's far from solution (#2179)