23.11

Problem GNUmakefiles have been standardized and now allow for the
problem to be compiled elsewhere (#2640, #2641, #2642, #2643)
The true-SDC Newton solver has been made more robust and faster
(#2586, #2602, #2605, #2606)
Several problems that required the initial model grid spacing to
be specified in the inputs file now automatically compute it as
needed, including flame_wave (#2610), convective_flame,
bubble_convergence, and hse_convergence (#2624), double_bubble,
gamma_law_bubble, and hse_convergence_general (#2612)
Outflow boundary conditions for the 4th order solver have been changed
to no longer use the one-sided stencil (#2607)
The ca_rad_source hook in Fortran has been removed. The existing
problem_rad_source() hook in C++ can be used instead. (#2626)
The compile option USE_AUX_UPDATE has been removed. If you want to
manually update the auxiliary parameters, you can use an external
source term or you can use the problem post-timestep hook. (#2614)
The pressure is now always included in the x-momentum flux in 1-d
Cartesian, and this fixes an issue at jumps in refinement with the
pressure gradient (#2468)
A bug was fixed in the 4th order diffusion operator that was introduced
when it was originally converted to C++ (#2592)
The 2nd order Radau integrator had the wrong quadrature weights
(#2594)

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