wpbonelli

**Is your feature request related to a problem? Please describe.** Classes accepting long lists of parameters (e.g. mf6 simulations, models and packages) should not be initialized with anonymous (ordered) arguments...

### Discussed in https://github.com/MODFLOW-ORG/modflow6/discussions/2356 Originally posted by **p-ortega** June 12, 2025 Hi all, I updated a model (DISV) from MF6 v5 + PRT (nightly build) to the official 6.6.2 release....

Use jinja in `dfn2f90.py` to generate Fortran source files from TOML DFNs as [provided by devtools](https://modflow-devtools.readthedocs.io/en/latest/md/dfn.html#toml-migration), like we have done for flopy codegen. ___ Checklist of items for pull request...

Nightly example releases

2

Consider doing an MF6 examples nightly build, or include them in the MF6 nightly build. Currently we have a development version of the [RTD site](https://modflow6-examples.readthedocs.io/en/develop/index.html) but we only release examples...

refactor(prt): deconflict naming, use enum for tracking level

2

`Particle[Store]Type%idomain` has nothing to do with discretization IDOMAIN, name it `itrdomain` for "tracking domain" to clarify what we mean. Also use an enum for method tracking level.

refactor(dis*): flatten idomain and move to base type

2

Store idomain as a 1D array in DisBaseType, rather than the proper grid shape in the concrete types. This deduplicates the variable and simplifes grid equivalence checks added in #2149...

Start testing with ifx 2024.1 in CI. No prior ifx version can build mf6 and pass tests. I haven't yet checked 2024.2 as it still needs support in `fortran-lang/setup-fortran`. There...

feat: optional replacement semantics for stress period data

1

Add an optional parameter `replace=False` to the `.set_data()` methods on the stress period data model. Setting this `True` resets the data before setting provided keys, i.e. clears all preexisting entries...

fix(cellbudgetfile): fix get_ts support for aux vars

2

close #2647, correcting initial buggy implementation of #2270

This has been deprecated for a while and was due for removal in 3.9