modflowpy · wpbonelli · May 13, 2025 · May 13, 2025 · May 13, 2025 · May 13, 2025
diff --git a/.docs/md/version_changes.md b/.docs/md/version_changes.md
@@ -1,4 +1,33 @@
 # Changelog
+### Version 3.9.3
+
+#### New features
+
+* [feat(modeltime)](https://github.com/modflowpy/flopy/commit/932bdcc8c07a10148cf733c02ba9190167239066): Add from_headers and reverse methods (#2481). Committed by wpbonelli on 2025-03-29.
+* [feat](https://github.com/modflowpy/flopy/commit/d8048a868b51d75039f0c3c097429144c6d44714): Add the angldegx to the kw dictionary produced by the get_disu_kwargs method (#2484). Committed by Sunny Titus on 2025-04-14.
+
+#### Bug fixes
+
+* [fix(resolve_exe)](https://github.com/modflowpy/flopy/commit/ca3adb34031285bc795b58fa42c4965d67278adc): Typecast exe name to string before passing to _resolve (#2457). Committed by martclanor on 2025-02-20.
+* [fix(HeadFile,CellBudgetFile)](https://github.com/modflowpy/flopy/commit/39d8d32625151979d78b82e709fa46ca4f5f7d9f): Fix tdis reversal (#2460). Committed by wpbonelli on 2025-02-25.
+* [fix(output_util.py)](https://github.com/modflowpy/flopy/commit/61e52f03ff69ec50b03a17c863738ad4a3c1dc4b): Trap grb in MF6Output (#2468). Committed by wpbonelli on 2025-03-07.
+* [fix(binaryfile)](https://github.com/modflowpy/flopy/commit/02ab7f1ff18a5c03f06d98fe1b35d6d6f7ad12df): Tdis in head/budget reversal methods (#2475). Committed by wpbonelli on 2025-03-18.
+* [fix(binaryfile)](https://github.com/modflowpy/flopy/commit/0eba4babad994a7cd73a3853714b9ff3bb326c90): Fix head/budget file reversal (#2483). Committed by wpbonelli on 2025-04-01.
+* [fix(flopy/utils/sfroutputfile.py::SfrFile.get_results)](https://github.com/modflowpy/flopy/commit/bf02be00ded034d2765948c7d7b075bf9d6ed4f1): Refactor deprecated DataFrame.append() call to pandas.concat() (#2491). Committed by aleaf on 2025-04-21.
+* [fix(model_splitter.py)](https://github.com/modflowpy/flopy/commit/838b37cc999c713aa7e71c4215f7535c5c9df27b): Add trap for obs packages in bc packages (#2493). Committed by Joshua Larsen on 2025-04-22.
+* [fix(evt)](https://github.com/modflowpy/flopy/commit/dcba9cf5ca1d8b946b568748f713a6dcf21e2bc3): Optional field mishandling (#2490). Committed by mjreno on 2025-04-23.
+* [fix](https://github.com/modflowpy/flopy/commit/0d9c91489a6a9df2c2c51c962e59cb5e9dd4ff2b): Update numpy array comparisons to use isin (#2504). Committed by Emmanuel Ferdman on 2025-05-06.
+* [fix(column lengths)](https://github.com/modflowpy/flopy/commit/351c5b72401b5de52d230ef9f0897f58e4edf475): Autoscale array write to ncol for structured multi-model simulations (#2507). Committed by Joshua Larsen on 2025-05-12.
+
+#### Refactoring
+
+* [refactor(resolve_exe)](https://github.com/modflowpy/flopy/commit/c61643fd8d61e6e4866527104324a6c468eb0e41): Also fix tests (#2464). Committed by Mike Taves on 2025-03-03.
+* [refactor(createpackages)](https://github.com/modflowpy/flopy/commit/c5b5a41f626ad24d8f0e564a83ab8dc673cc9b7b): Use jinja for mf6 module code generation (#2333). Committed by wpbonelli on 2025-03-07.
+* [refactor(Mf6Splitter)](https://github.com/modflowpy/flopy/commit/20829b704b20be5175119fcd685fe808c55d51b6): Change how node mapping is stored and loaded (#2465). Committed by Joshua Larsen on 2025-03-14.
+* [refactor(gridutil)](https://github.com/modflowpy/flopy/commit/48f46fb87a1a23bc13a41be881f3852fdab7d682): Improve arg handling in get_disu_kwargs (#2480). Committed by wpbonelli on 2025-04-01.
+* [refactor(model_splitter.py)](https://github.com/modflowpy/flopy/commit/14640530dd46598d8d76417b6b640db0850cbf80): Support for SSM and ATS (#2505). Committed by Joshua Larsen on 2025-05-08.
+* [refactor(codegen)](https://github.com/modflowpy/flopy/commit/69f6e09a8bea004454e9a83b76e5b37f8c0a7810): Move dfn utils from devtools (#2508). Committed by wpbonelli on 2025-05-13.
+
 ### Version 3.9.2
 
 #### New features

diff --git a/CITATION.cff b/CITATION.cff
@@ -3,8 +3,8 @@ message: If you use this software, please cite both the article from preferred-c
   references, and the software itself.
 type: software
 title: FloPy
-version: 3.10.0.dev2
-date-released: '2025-02-12'
+version: 3.10.0.dev3
+date-released: '2025-05-13'
 doi: 10.5066/F7BK19FH
 abstract: A Python package to create, run, and post-process MODFLOW-based models.
 repository-artifact: https://pypi.org/project/flopy

diff --git a/README.md b/README.md
@@ -1,7 +1,7 @@
 
 <img src="https://raw.githubusercontent.com/modflowpy/flopy/master/examples/images/flopy3.png" alt="flopy3" style="width:50;height:20">
 
-### Version 3.10.0.dev2
+### Version 3.10.0.dev3
 [![flopy continuous integration](https://github.com/modflowpy/flopy/actions/workflows/commit.yml/badge.svg?branch=develop)](https://github.com/modflowpy/flopy/actions/workflows/commit.yml)
 [![Read the Docs](https://github.com/modflowpy/flopy/actions/workflows/rtd.yml/badge.svg?branch=develop)](https://github.com/modflowpy/flopy/actions/workflows/rtd.yml)
 
@@ -150,7 +150,7 @@ How to Cite
 
 ##### ***Software/Code citation for FloPy:***
 
-[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2025, FloPy v3.10.0.dev2: U.S. Geological Survey Software Release, 12 February 2025, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
+[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2025, FloPy v3.10.0.dev3: U.S. Geological Survey Software Release, 13 May 2025, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
 
 
 Additional FloPy Related Publications

diff --git a/docs/PyPI_release.md b/docs/PyPI_release.md
@@ -30,4 +30,4 @@ How to Cite
 
 *Software/Code citation for FloPy:*
 
-[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2025, FloPy v3.10.0.dev2: U.S. Geological Survey Software Release, 12 February 2025, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
+[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2025, FloPy v3.10.0.dev3: U.S. Geological Survey Software Release, 13 May 2025, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
diff --git a/flopy/mf6/data/dfn/gwe-dis.dfn b/flopy/mf6/data/dfn/gwe-dis.dfn
@@ -17,6 +17,48 @@ optional true
 longname do not write binary grid file
 description keyword to deactivate writing of the binary grid file.
 
+block options
+name grb_filerecord
+type record grb6 fileout grb6_filename
+reader urword
+tagged true
+optional true
+longname
+description
+
+block options
+name grb6
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname grb keyword
+description keyword to specify that record corresponds to a binary grid file.
+extended true
+
+block options
+name fileout
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname file keyword
+description keyword to specify that an output filename is expected next.
+
+block options
+name grb6_filename
+type string
+preserve_case true
+in_record true
+reader urword
+optional false
+tagged false
+longname file name of GRB information
+description defines a binary grid output file. If this option is not provided, the output file will have the same name as the discretization input file, plus extension ``.grb''.
+extended true
+
 block options
 name xorigin
 type double precision

diff --git a/flopy/mf6/data/dfn/gwe-disu.dfn b/flopy/mf6/data/dfn/gwe-disu.dfn
@@ -16,6 +16,48 @@ optional true
 longname do not write binary grid file
 description keyword to deactivate writing of the binary grid file.
 
+block options
+name grb_filerecord
+type record grb6 fileout grb6_filename
+reader urword
+tagged true
+optional true
+longname
+description
+
+block options
+name grb6
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname grb keyword
+description keyword to specify that record corresponds to a binary grid file.
+extended true
+
+block options
+name fileout
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname file keyword
+description keyword to specify that an output filename is expected next.
+
+block options
+name grb6_filename
+type string
+preserve_case true
+in_record true
+reader urword
+optional false
+tagged false
+longname file name of GRB information
+description defines a binary grid output file. If this option is not provided, the output file will have the same name as the discretization input file, plus extension ``.grb''.
+extended true
+
 block options
 name xorigin
 type double precision

diff --git a/flopy/mf6/data/dfn/gwe-disv.dfn b/flopy/mf6/data/dfn/gwe-disv.dfn
@@ -17,6 +17,48 @@ optional true
 longname do not write binary grid file
 description keyword to deactivate writing of the binary grid file.
 
+block options
+name grb_filerecord
+type record grb6 fileout grb6_filename
+reader urword
+tagged true
+optional true
+longname
+description
+
+block options
+name grb6
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname grb keyword
+description keyword to specify that record corresponds to a binary grid file.
+extended true
+
+block options
+name fileout
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname file keyword
+description keyword to specify that an output filename is expected next.
+
+block options
+name grb6_filename
+type string
+preserve_case true
+in_record true
+reader urword
+optional false
+tagged false
+longname file name of GRB information
+description defines a binary grid output file. If this option is not provided, the output file will have the same name as the discretization input file, plus extension ``.grb''.
+extended true
+
 block options
 name xorigin
 type double precision

diff --git a/flopy/mf6/data/dfn/gwf-buy.dfn b/flopy/mf6/data/dfn/gwf-buy.dfn
@@ -131,7 +131,7 @@ tagged false
 shape
 reader urword
 longname modelname
-description name of GWT model used to simulate a species that will be used in the density equation of state.  This name will have no effect if the simulation does not include a GWT model that corresponds to this GWF model.
+description name of a GWT or GWE model used to simulate a species that will be used in the density equation of state.  This name will have no effect if the simulation does not include a GWT or GWE model that corresponds to this GWF model.
 
 block packagedata
 name auxspeciesname

diff --git a/flopy/mf6/data/dfn/gwf-dis.dfn b/flopy/mf6/data/dfn/gwf-dis.dfn
@@ -17,6 +17,48 @@ optional true
 longname do not write binary grid file
 description keyword to deactivate writing of the binary grid file.
 
+block options
+name grb_filerecord
+type record grb6 fileout grb6_filename
+reader urword
+tagged true
+optional true
+longname
+description
+
+block options
+name grb6
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname grb keyword
+description keyword to specify that record corresponds to a binary grid file.
+extended true
+
+block options
+name fileout
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname file keyword
+description keyword to specify that an output filename is expected next.
+
+block options
+name grb6_filename
+type string
+preserve_case true
+in_record true
+reader urword
+optional false
+tagged false
+longname file name of GRB information
+description defines a binary grid output file. If this option is not provided, the output file will have the same name as the discretization input file, plus extension ``.grb''.
+extended true
+
 block options
 name xorigin
 type double precision

diff --git a/flopy/mf6/data/dfn/gwf-disu.dfn b/flopy/mf6/data/dfn/gwf-disu.dfn
@@ -16,6 +16,48 @@ optional true
 longname do not write binary grid file
 description keyword to deactivate writing of the binary grid file.
 
+block options
+name grb_filerecord
+type record grb6 fileout grb6_filename
+reader urword
+tagged true
+optional true
+longname
+description
+
+block options
+name grb6
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname grb keyword
+description keyword to specify that record corresponds to a binary grid file.
+extended true
+
+block options
+name fileout
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname file keyword
+description keyword to specify that an output filename is expected next.
+
+block options
+name grb6_filename
+type string
+preserve_case true
+in_record true
+reader urword
+optional false
+tagged false
+longname file name of GRB information
+description defines a binary grid output file. If this option is not provided, the output file will have the same name as the discretization input file, plus extension ``.grb''.
+extended true
+
 block options
 name xorigin
 type double precision

diff --git a/flopy/mf6/data/dfn/gwf-disv.dfn b/flopy/mf6/data/dfn/gwf-disv.dfn
@@ -17,6 +17,48 @@ optional true
 longname do not write binary grid file
 description keyword to deactivate writing of the binary grid file.
 
+block options
+name grb_filerecord
+type record grb6 fileout grb6_filename
+reader urword
+tagged true
+optional true
+longname
+description
+
+block options
+name grb6
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname grb keyword
+description keyword to specify that record corresponds to a binary grid file.
+extended true
+
+block options
+name fileout
+type keyword
+in_record true
+reader urword
+tagged true
+optional false
+longname file keyword
+description keyword to specify that an output filename is expected next.
+
+block options
+name grb6_filename
+type string
+preserve_case true
+in_record true
+reader urword
+optional false
+tagged false
+longname file name of GRB information
+description defines a binary grid output file. If this option is not provided, the output file will have the same name as the discretization input file, plus extension ``.grb''.
+extended true
+
 block options
 name xorigin
 type double precision

diff --git a/flopy/mf6/data/dfn/gwf-maw.dfn b/flopy/mf6/data/dfn/gwf-maw.dfn
@@ -370,7 +370,7 @@ tagged false
 in_record true
 reader urword
 longname well bottom
-description bottom elevation of the multi-aquifer well. If CONDEQN is SPECIFIED, THIEM, SKIN, or COMPOSITE, BOTTOM is set to the cell bottom in the lowermost GWF cell connection in cases where the specified well bottom is above the bottom of this GWF cell. If CONDEQN is MEAN, BOTTOM is set to the lowermost GWF cell connection screen bottom in cases where the specified well bottom is above this value. The bottom elevation defines the lowest well head that will be simulated when the NEWTON UNDER\_RELAXATION option is specified in the GWF model name file. The bottom elevation is also used to calculate volumetric storage in the well.
+description bottom elevation of the multi-aquifer well. If CONDEQN is SPECIFIED, THIEM, SKIN, or CUMULATIVE, BOTTOM is set to the cell bottom in the lowermost GWF cell connection in cases where the specified well bottom is above the bottom of this GWF cell. If CONDEQN is MEAN, BOTTOM is set to the lowermost GWF cell connection screen bottom in cases where the specified well bottom is above this value. The bottom elevation defines the lowest well head that will be simulated when the NEWTON UNDER\_RELAXATION option is specified in the GWF model name file. The bottom elevation is also used to calculate volumetric storage in the well.
 
 block packagedata
 name strt
@@ -475,7 +475,7 @@ tagged false
 in_record true
 reader urword
 longname screen top
-description value that defines the top elevation of the screen for the multi-aquifer well connection. If CONDEQN is SPECIFIED, THIEM, SKIN, or COMPOSITE, SCRN\_TOP can be any value and is set to the top of the cell. If CONDEQN is MEAN, SCRN\_TOP is set to the multi-aquifer well connection cell top if the specified value is greater than the cell top. The program will terminate with an error if the screen top is less than the screen bottom.
+description value that defines the top elevation of the screen for the multi-aquifer well connection. If CONDEQN is SPECIFIED, THIEM, SKIN, or CUMULATIVE, SCRN\_TOP can be any value and is set to the top of the cell. If CONDEQN is MEAN, SCRN\_TOP is set to the multi-aquifer well connection cell top if the specified value is greater than the cell top. The program will terminate with an error if the screen top is less than the screen bottom.
 
 block connectiondata
 name scrn_bot
@@ -485,7 +485,7 @@ tagged false
 in_record true
 reader urword
 longname screen bottom
-description value that defines the bottom elevation of the screen for the multi-aquifer well connection. If CONDEQN is SPECIFIED, THIEM, SKIN, or COMPOSITE, SCRN\_BOT can be any value and is set to the bottom of the cell. If CONDEQN is MEAN, SCRN\_BOT is set to the multi-aquifer well connection cell bottom if the specified value is less than the cell bottom. The program will terminate with an error if the screen bottom is greater than the screen top.
+description value that defines the bottom elevation of the screen for the multi-aquifer well connection. If CONDEQN is SPECIFIED, THIEM, SKIN, or CUMULATIVE, SCRN\_BOT can be any value and is set to the bottom of the cell. If CONDEQN is MEAN, SCRN\_BOT is set to the multi-aquifer well connection cell bottom if the specified value is less than the cell bottom. The program will terminate with an error if the screen bottom is greater than the screen top.
 
 block connectiondata
 name hk_skin
Original file line number	Diff line number	Diff line change
Expand Up		@@ -30,4 +30,4 @@ How to Cite

		Software/Code citation for FloPy:

		[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2025, FloPy v3.10.0.dev2: U.S. Geological Survey Software Release, 12 February 2025, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
		[Bakker, Mark, Post, Vincent, Hughes, J. D., Langevin, C. D., White, J. T., Leaf, A. T., Paulinski, S. R., Bellino, J. C., Morway, E. D., Toews, M. W., Larsen, J. D., Fienen, M. N., Starn, J. J., Brakenhoff, D. A., and Bonelli, W. P., 2025, FloPy v3.10.0.dev3: U.S. Geological Survey Software Release, 13 May 2025, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)