diff --git a/DISCLAIMER.md b/DISCLAIMER.md
index f32778cb5e4..9226475a939 100644
--- a/DISCLAIMER.md
+++ b/DISCLAIMER.md
@@ -1,11 +1,12 @@
 Disclaimer
 ----------
 
-This software is preliminary or provisional and is subject to revision. It is
-being provided to meet the need for timely best science. The software has not
-received final approval by the U.S. Geological Survey (USGS). No warranty,
-expressed or implied, is made by the USGS or the U.S. Government as to the
-functionality of the software and related material nor shall the fact of release
-constitute any such warranty. The software is provided on the condition that
-neither the USGS nor the U.S. Government shall be held liable for any damages
-resulting from the authorized or unauthorized use of the software.
+This software has been approved for release by the U.S. Geological Survey
+(USGS). Although the software has been subjected to rigorous review, the USGS
+reserves the right to update the software as needed pursuant to further analysis
+and review. No warranty, expressed or implied, is made by the USGS or the U.S.
+Government as to the functionality of the software and related material nor
+shall the fact of release constitute any such warranty. Furthermore, the
+software is released on condition that neither the USGS nor the U.S. Government
+shall be held liable for any damages resulting from its authorized or
+unauthorized use.
diff --git a/README.md b/README.md
index b01423cfed7..cd4de417fd3 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 
 This is the development repository for the USGS MODFLOW 6 Hydrologic Model. The  official USGS distribution is available at [USGS Release Page](https://water.usgs.gov/ogw/modflow/MODFLOW.html).
 
-### Version 6.2.1 release candidate
+### Version 6.2.1
 
 ![MODFLOW 6 CI with latest gfortran](https://github.com/MODFLOW-USGS/modflow6/workflows/MODFLOW%206%20CI%20with%20latest%20gfortran/badge.svg)
 
@@ -69,18 +69,19 @@ MODFLOW 6 is the latest core version of MODFLOW. It synthesizes many of the capa
 
 #### ***Software/Code***
 
-[Langevin, C.D., Hughes, J.D., Banta, E.R., Provost, A.M., Niswonger, R.G., and Panday, Sorab, 2020, MODFLOW 6 Modular Hydrologic Model version 6.2.1 release candidate: U.S. Geological Survey Software Release, 22 October 2020, https://doi.org/10.5066/F76Q1VQV](https://doi.org/10.5066/F76Q1VQV)
+[Langevin, C.D., Hughes, J.D., Banta, E.R., Provost, A.M., Niswonger, R.G., and Panday, Sorab, 2021, MODFLOW 6 Modular Hydrologic Model version 6.2.1: U.S. Geological Survey Software Release, 18 February 2021, https://doi.org/10.5066/F76Q1VQV](https://doi.org/10.5066/F76Q1VQV)
 
 
 Disclaimer
 ----------
 
-This software is preliminary or provisional and is subject to revision. It is
-being provided to meet the need for timely best science. The software has not
-received final approval by the U.S. Geological Survey (USGS). No warranty,
-expressed or implied, is made by the USGS or the U.S. Government as to the
-functionality of the software and related material nor shall the fact of release
-constitute any such warranty. The software is provided on the condition that
-neither the USGS nor the U.S. Government shall be held liable for any damages
-resulting from the authorized or unauthorized use of the software.
+This software has been approved for release by the U.S. Geological Survey
+(USGS). Although the software has been subjected to rigorous review, the USGS
+reserves the right to update the software as needed pursuant to further analysis
+and review. No warranty, expressed or implied, is made by the USGS or the U.S.
+Government as to the functionality of the software and related material nor
+shall the fact of release constitute any such warranty. Furthermore, the
+software is released on condition that neither the USGS nor the U.S. Government
+shall be held liable for any damages resulting from its authorized or
+unauthorized use.
 
diff --git a/code.json b/code.json
index 4350e6247fa..5542ac08919 100755
--- a/code.json
+++ b/code.json
@@ -1,6 +1,6 @@
 [
     {
-        "status": "Release Candidate",
+        "status": "Production",
         "languages": [
             "Fortran2008"
         ],
@@ -20,7 +20,7 @@
         "laborHours": -1,
         "version": "6.2.1",
         "date": {
-            "metadataLastUpdated": "2020-10-22"
+            "metadataLastUpdated": "2021-02-18"
         },
         "organization": "U.S. Geological Survey",
         "permissions": {
diff --git a/doc/ReleaseNotes/ReleaseNotes.tex b/doc/ReleaseNotes/ReleaseNotes.tex
index f76b05d29b6..7c3223b976c 100644
--- a/doc/ReleaseNotes/ReleaseNotes.tex
+++ b/doc/ReleaseNotes/ReleaseNotes.tex
@@ -154,7 +154,7 @@ \section{History}
 This section describes changes introduced into MODFLOW~6 for the current release.  Changes introduced in previous releases are in Appendix~\ref{app:A}. These changes may substantially affect users.
 
 \begin{itemize}
-	\item Version mf6.2.1--February 17, 2021
+	\item Version mf6.2.1--February 18, 2021
 
 	\underline{NEW FUNCTIONALITY}
 	\begin{itemize}
diff --git a/doc/ReleaseNotes/folder_struct.tex b/doc/ReleaseNotes/folder_struct.tex
index d85e9653827..9f0fd71000f 100644
--- a/doc/ReleaseNotes/folder_struct.tex
+++ b/doc/ReleaseNotes/folder_struct.tex
@@ -1,5 +1,5 @@
 \begin{verbatim}
-mf6.2.0/ 
+mf6.2.1/ 
     bin/ 
     doc/ 
     examples/ 
@@ -77,6 +77,36 @@
             mt3d/ 
         ex-gwt-mt3dms-p01d/ 
             mt3d/ 
+        ex-gwt-mt3dms-p02a/ 
+            mf2005/ 
+            mf6gwf/ 
+            mf6gwt/ 
+            mt3d/ 
+        ex-gwt-mt3dms-p02b/ 
+            mf2005/ 
+            mf6gwf/ 
+            mf6gwt/ 
+            mt3d/ 
+        ex-gwt-mt3dms-p02c/ 
+            mf2005/ 
+            mf6gwf/ 
+            mf6gwt/ 
+            mt3d/ 
+        ex-gwt-mt3dms-p02d/ 
+            mf2005/ 
+            mf6gwf/ 
+            mf6gwt/ 
+            mt3d/ 
+        ex-gwt-mt3dms-p02e/ 
+            mf2005/ 
+            mf6gwf/ 
+            mf6gwt/ 
+            mt3d/ 
+        ex-gwt-mt3dms-p02f/ 
+            mf2005/ 
+            mf6gwf/ 
+            mf6gwt/ 
+            mt3d/ 
         ex-gwt-mt3dms-p03/ 
             mt3d/ 
         ex-gwt-mt3dms-p04a/ 
@@ -125,6 +155,12 @@
         ex-gwt-prudic2004t2/ 
             mf6gwf/ 
             mf6gwt/ 
+        ex-gwt-rotate/ 
+        ex-gwt-saltlake/ 
+        ex-gwt-uzt-2d-a/ 
+            mt3d/ 
+        ex-gwt-uzt-2d-b/ 
+            mt3d/ 
     make/ 
     msvs/ 
     src/ 
diff --git a/doc/mf6io/mf6output.tex b/doc/mf6io/mf6output.tex
index 8fb6c5f75fe..c0678cf5cd3 100644
--- a/doc/mf6io/mf6output.tex
+++ b/doc/mf6io/mf6output.tex
@@ -2,9 +2,9 @@
 \begin{lstlisting}[style=modeloutput]
                                    MODFLOW 6
                 U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL
-                            VERSION 6.2.0 10/22/2020
+                            VERSION 6.2.1 02/18/2021
 
-   MODFLOW 6 compiled Oct 22 2020 09:26:42 with IFORT compiler (ver. 19.10.2)
+   MODFLOW 6 compiled Feb 18 2021 08:24:05 with IFORT compiler (ver. 19.10.2)
 
 This software has been approved for release by the U.S. Geological
 Survey (USGS). Although the software has been subjected to rigorous
@@ -20,15 +20,15 @@
 and distribution information.
 
 
- Run start date and time (yyyy/mm/dd hh:mm:ss): 2020/10/22  9:34:01
+ Run start date and time (yyyy/mm/dd hh:mm:ss): 2021/02/18  8:32:29
 
  Writing simulation list file: mfsim.lst
  Using Simulation name file: mfsim.nam
 
     Solving:  Stress period:     1    Time step:     1
 
- Run end date and time (yyyy/mm/dd hh:mm:ss): 2020/10/22  9:34:01
- Elapsed run time:  0.068 Seconds
+ Run end date and time (yyyy/mm/dd hh:mm:ss): 2021/02/18  8:32:29
+ Elapsed run time:  0.076 Seconds
 
  Normal termination of simulation.
 
diff --git a/doc/mf6io/mf6switches.tex b/doc/mf6io/mf6switches.tex
index d13f4095017..2b266012d97 100644
--- a/doc/mf6io/mf6switches.tex
+++ b/doc/mf6io/mf6switches.tex
@@ -1,6 +1,6 @@
 {\small
 \begin{lstlisting}[style=modeloutput]
-mf6.exe - MODFLOW 6.2.0 10/22/2020 (compiled Oct 22 2020 09:26:42)
+mf6.exe - MODFLOW 6.2.1 02/18/2021 (compiled Feb 18 2021 08:24:05)
 usage: mf6.exe               run MODFLOW 6 using "mfsim.nam"
    or: mf6.exe [options]     retrieve program information
 
diff --git a/doc/version.py b/doc/version.py
index 7e9455dd699..e073ee1f488 100644
--- a/doc/version.py
+++ b/doc/version.py
@@ -1,5 +1,5 @@
 # MODFLOW 6 version file automatically created using...make_release.py
-# created on...October 22, 2020 12:23:55
+# created on...February 18, 2021 08:23:34
 
 major = 6
 minor = 2
diff --git a/doc/version.tex b/doc/version.tex
index df3098d9dae..0397faba4c3 100644
--- a/doc/version.tex
+++ b/doc/version.tex
@@ -1,3 +1,3 @@
-\newcommand{\modflowversion}{mf6.2.1---release candidate}
-\newcommand{\modflowdate}{October 22, 2020}
+\newcommand{\modflowversion}{mf6.2.1}
+\newcommand{\modflowdate}{February 18, 2021}
 \newcommand{\currentmodflowversion}{Version \modflowversion---\modflowdate}
diff --git a/make/makedefaults b/make/makedefaults
index 3db757cdacd..baf00a7dc04 100644
--- a/make/makedefaults
+++ b/make/makedefaults
@@ -1,4 +1,4 @@
-# makedefaults created on 2020-10-22 09:26:36.744206
+# makedefaults created on 2021-02-18 08:23:56.262624
 # by pymake (version 1.2.0) for the 'mf6' executable 
 # using the 'gfortran' fortran compiler(s).
 
diff --git a/make/makefile b/make/makefile
index 9e772bd97c6..8cc569a10f3 100644
--- a/make/makefile
+++ b/make/makefile
@@ -1,4 +1,4 @@
-# makefile created on 2020-10-22 09:26:36.744206
+# makefile created on 2021-02-18 08:23:56.262624
 # by pymake (version 1.2.0) for the 'mf6' executable 
 # using the 'gfortran' fortran compiler(s).
 
@@ -42,131 +42,131 @@ ${SOURCEDIR15}
 .SUFFIXES: .f90 .fpp .o
 
 OBJECTS = \
+$(OBJDIR)/OpenSpec.o \
 $(OBJDIR)/kind.o \
-$(OBJDIR)/Sparse.o \
+$(OBJDIR)/compilerversion.o \
+$(OBJDIR)/ims8reordering.o \
 $(OBJDIR)/BaseGeometry.o \
-$(OBJDIR)/OpenSpec.o \
-$(OBJDIR)/Constants.o \
 $(OBJDIR)/HashTable.o \
-$(OBJDIR)/defmacro.o \
+$(OBJDIR)/Constants.o \
+$(OBJDIR)/Xt3dAlgorithm.o \
+$(OBJDIR)/PackageBudget.o \
+$(OBJDIR)/Sparse.o \
 $(OBJDIR)/SimVariables.o \
-$(OBJDIR)/compilerversion.o \
 $(OBJDIR)/SmoothingFunctions.o \
-$(OBJDIR)/ims8reordering.o \
-$(OBJDIR)/PackageBudget.o \
 $(OBJDIR)/genericutils.o \
-$(OBJDIR)/Xt3dAlgorithm.o \
-$(OBJDIR)/List.o \
+$(OBJDIR)/defmacro.o \
 $(OBJDIR)/ArrayHandlers.o \
-$(OBJDIR)/ObsOutput.o \
-$(OBJDIR)/TimeSeriesRecord.o \
-$(OBJDIR)/Timer.o \
-$(OBJDIR)/mf6lists.o \
-$(OBJDIR)/StringList.o \
 $(OBJDIR)/version.o \
+$(OBJDIR)/Timer.o \
 $(OBJDIR)/Message.o \
+$(OBJDIR)/List.o \
+$(OBJDIR)/ObsOutput.o \
+$(OBJDIR)/StringList.o \
 $(OBJDIR)/Sim.o \
+$(OBJDIR)/MemoryHelper.o \
+$(OBJDIR)/mf6lists.o \
+$(OBJDIR)/TimeSeriesRecord.o \
 $(OBJDIR)/sort.o \
 $(OBJDIR)/Iunit.o \
-$(OBJDIR)/Budget.o \
-$(OBJDIR)/MemoryHelper.o \
 $(OBJDIR)/InputOutput.o \
-$(OBJDIR)/comarg.o \
-$(OBJDIR)/CircularGeometry.o \
+$(OBJDIR)/DisvGeom.o \
+$(OBJDIR)/BudgetFileReader.o \
+$(OBJDIR)/TableTerm.o \
 $(OBJDIR)/ArrayReaders.o \
+$(OBJDIR)/comarg.o \
+$(OBJDIR)/Budget.o \
+$(OBJDIR)/HeadFileReader.o \
 $(OBJDIR)/BlockParser.o \
-$(OBJDIR)/TableTerm.o \
-$(OBJDIR)/PrintSaveManager.o \
-$(OBJDIR)/BudgetFileReader.o \
-$(OBJDIR)/DisvGeom.o \
 $(OBJDIR)/ObsOutputList.o \
-$(OBJDIR)/HeadFileReader.o \
+$(OBJDIR)/PrintSaveManager.o \
+$(OBJDIR)/RectangularGeometry.o \
 $(OBJDIR)/Table.o \
+$(OBJDIR)/ListReader.o \
+$(OBJDIR)/CircularGeometry.o \
+$(OBJDIR)/NameFile.o \
 $(OBJDIR)/TimeSeries.o \
-$(OBJDIR)/RectangularGeometry.o \
 $(OBJDIR)/TimeSeriesLink.o \
+$(OBJDIR)/TimeSeriesFileList.o \
 $(OBJDIR)/Memory.o \
-$(OBJDIR)/NameFile.o \
 $(OBJDIR)/MemoryList.o \
-$(OBJDIR)/TimeSeriesFileList.o \
-$(OBJDIR)/ListReader.o \
 $(OBJDIR)/MemoryManager.o \
-$(OBJDIR)/tdis.o \
 $(OBJDIR)/MemorySetHandler.o \
-$(OBJDIR)/UzfCellGroup.o \
-$(OBJDIR)/PackageMover.o \
 $(OBJDIR)/Connections.o \
+$(OBJDIR)/tdis.o \
 $(OBJDIR)/ims8linear.o \
 $(OBJDIR)/BaseModel.o \
-$(OBJDIR)/TimeSeriesManager.o \
+$(OBJDIR)/PackageMover.o \
+$(OBJDIR)/UzfCellGroup.o \
 $(OBJDIR)/Mover.o \
+$(OBJDIR)/TimeSeriesManager.o \
 $(OBJDIR)/DiscretizationBase.o \
-$(OBJDIR)/BaseSolution.o \
-$(OBJDIR)/gwf3disu8.o \
-$(OBJDIR)/gwf3dis8.o \
+$(OBJDIR)/Observe.o \
+$(OBJDIR)/Xt3dInterface.o \
 $(OBJDIR)/TimeArray.o \
+$(OBJDIR)/ObsUtility.o \
+$(OBJDIR)/gwf3dis8.o \
+$(OBJDIR)/ObsContainer.o \
+$(OBJDIR)/gwf3disv8.o \
 $(OBJDIR)/OutputControlData.o \
-$(OBJDIR)/BaseExchange.o \
 $(OBJDIR)/NumericalPackage.o \
-$(OBJDIR)/gwf3disv8.o \
+$(OBJDIR)/BaseSolution.o \
 $(OBJDIR)/BudgetTerm.o \
-$(OBJDIR)/Observe.o \
-$(OBJDIR)/Xt3dInterface.o \
-$(OBJDIR)/gwf3sto8.o \
-$(OBJDIR)/SolutionGroup.o \
+$(OBJDIR)/gwf3disu8.o \
 $(OBJDIR)/TimeArraySeries.o \
-$(OBJDIR)/ObsContainer.o \
-$(OBJDIR)/ObsUtility.o \
-$(OBJDIR)/gwf3hfb8.o \
 $(OBJDIR)/TimeArraySeriesLink.o \
-$(OBJDIR)/BudgetObject.o \
+$(OBJDIR)/Obs3.o \
+$(OBJDIR)/gwf3hfb8.o \
 $(OBJDIR)/gwf3ic8.o \
+$(OBJDIR)/SolutionGroup.o \
 $(OBJDIR)/OutputControl.o \
-$(OBJDIR)/Obs3.o \
-$(OBJDIR)/gwf3mvr8.o \
-$(OBJDIR)/gwt1ic1.o \
+$(OBJDIR)/gwf3sto8.o \
+$(OBJDIR)/gwf3obs8.o \
 $(OBJDIR)/gwf3npf8.o \
 $(OBJDIR)/TimeArraySeriesManager.o \
-$(OBJDIR)/gwf3obs8.o \
+$(OBJDIR)/gwt1ic1.o \
+$(OBJDIR)/BudgetObject.o \
+$(OBJDIR)/BaseExchange.o \
 $(OBJDIR)/gwf3oc8.o \
-$(OBJDIR)/gwt1oc1.o \
-$(OBJDIR)/gwt1obs1.o \
 $(OBJDIR)/gwf3csub8.o \
+$(OBJDIR)/gwt1oc1.o \
 $(OBJDIR)/BoundaryPackage.o \
-$(OBJDIR)/gwf3uzf8.o \
-$(OBJDIR)/NumericalModel.o \
+$(OBJDIR)/gwf3lak8.o \
+$(OBJDIR)/gwf3mvr8.o \
+$(OBJDIR)/gwt1obs1.o \
 $(OBJDIR)/gwf3evt8.o \
 $(OBJDIR)/gwf3riv8.o \
-$(OBJDIR)/gwt1fmi1.o \
-$(OBJDIR)/gwf3chd8.o \
-$(OBJDIR)/gwf3lak8.o \
-$(OBJDIR)/gwf3drn8.o \
+$(OBJDIR)/gwf3ghb8.o \
+$(OBJDIR)/gwf3uzf8.o \
 $(OBJDIR)/gwt1cnc1.o \
-$(OBJDIR)/gwt1mst1.o \
 $(OBJDIR)/gwt1src1.o \
-$(OBJDIR)/gwt1mvt1.o \
-$(OBJDIR)/NumericalExchange.o \
-$(OBJDIR)/gwt1ssm1.o \
 $(OBJDIR)/gwf3wel8.o \
-$(OBJDIR)/gwf3sfr8.o \
 $(OBJDIR)/gwf3rch8.o \
+$(OBJDIR)/gwf3sfr8.o \
+$(OBJDIR)/gwt1fmi1.o \
 $(OBJDIR)/gwf3maw8.o \
-$(OBJDIR)/GhostNode.o \
-$(OBJDIR)/gwt1adv1.o \
-$(OBJDIR)/gwt1dsp.o \
-$(OBJDIR)/gwf3ghb8.o \
-$(OBJDIR)/NumericalSolution.o \
-$(OBJDIR)/gwt1ist1.o \
+$(OBJDIR)/gwf3drn8.o \
+$(OBJDIR)/gwf3chd8.o \
+$(OBJDIR)/NumericalModel.o \
+$(OBJDIR)/gwf3buy8.o \
+$(OBJDIR)/gwt1ssm1.o \
+$(OBJDIR)/gwt1mst1.o \
 $(OBJDIR)/gwt1apt1.o \
 $(OBJDIR)/gwt1sft1.o \
-$(OBJDIR)/gwf3buy8.o \
 $(OBJDIR)/gwt1uzt1.o \
-$(OBJDIR)/gwt1mwt1.o \
+$(OBJDIR)/gwt1mvt1.o \
 $(OBJDIR)/gwt1lkt1.o \
+$(OBJDIR)/gwt1mwt1.o \
+$(OBJDIR)/gwt1dsp.o \
+$(OBJDIR)/gwt1ist1.o \
+$(OBJDIR)/gwt1adv1.o \
+$(OBJDIR)/GhostNode.o \
+$(OBJDIR)/NumericalExchange.o \
 $(OBJDIR)/gwf3.o \
-$(OBJDIR)/GwfGwfExchange.o \
 $(OBJDIR)/gwt1.o \
 $(OBJDIR)/GwfGwtExchange.o \
+$(OBJDIR)/NumericalSolution.o \
+$(OBJDIR)/GwfGwfExchange.o \
 $(OBJDIR)/SimulationCreate.o \
 $(OBJDIR)/mf6core.o \
 $(OBJDIR)/mf6.o
diff --git a/src/Utilities/version.f90 b/src/Utilities/version.f90
index 763599dfd75..d4ceebdf964 100644
--- a/src/Utilities/version.f90
+++ b/src/Utilities/version.f90
@@ -3,8 +3,8 @@ module VersionModule
   implicit none
   public
   ! -- modflow 6 version
-  integer(I4B), parameter :: IDEVELOPMODE = 1
-  character(len=40), parameter :: VERSION = '6.2.1 release candidate 10/22/2020'
+  integer(I4B), parameter :: IDEVELOPMODE = 0
+  character(len=40), parameter :: VERSION = '6.2.1 02/18/2021'
   character(len=10), parameter :: MFVNAM = ' 6'
   character(len=*), parameter  :: MFTITLE =                                     &
     'U.S. GEOLOGICAL SURVEY MODULAR HYDROLOGIC MODEL'
@@ -15,16 +15,18 @@ module VersionModule
   ! -- disclaimer must be appropriate for version (release or release candidate)
   character(len=*), parameter :: FMTDISCLAIMER =                                &
     "(/,                                                                        &
-    &'This software is preliminary or provisional and is subject to ',/,        &
-    &'revision. It is being provided to meet the need for timely best ',/,      &
-    &'science. The software has not received final approval by the U.S. ',/,    &
-    &'Geological Survey (USGS). No warranty, expressed or implied, is made ',/, &
-    &'by the USGS or the U.S. Government as to the functionality of the ',/,    &
-    &'software and related material nor shall the fact of release ',/,          &
-    &'constitute any such warranty. The software is provided on the ',/,        &
-    &'condition that neither the USGS nor the U.S. Government shall be held ',/,&
-    &'liable for any damages resulting from the authorized or unauthorized ',/, &
-    &'use of the software.',/)"
+    &'This software has been approved for release by the U.S. Geological ',/,   &
+    &'Survey (USGS). Although the software has been subjected to rigorous ',/,  &
+    &'review, the USGS reserves the right to update the software as needed ',/, &
+    &'pursuant to further analysis and review. No warranty, expressed or ',/,   &
+    &'implied, is made by the USGS or the U.S. Government as to the ',/,        &
+    &'functionality of the software and related material nor shall the ',/,     &
+    &'fact of release constitute any such warranty. Furthermore, the ',/,       &
+    &'software is released on condition that neither the USGS nor the U.S. ',/, &
+    &'Government shall be held liable for any damages resulting from its ',/,   &
+    &'authorized or unauthorized use. Also refer to the USGS Water ',/,         &
+    &'Resources Software User Rights Notice for complete use, copyright, ',/,   &
+    &'and distribution information.',/)"
 
   contains
 
diff --git a/utils/mf5to6/make/makedefaults b/utils/mf5to6/make/makedefaults
index f211e51fd61..1dcd425d21c 100644
--- a/utils/mf5to6/make/makedefaults
+++ b/utils/mf5to6/make/makedefaults
@@ -1,4 +1,4 @@
-# makedefaults created on 2020-10-22 09:28:15.441302
+# makedefaults created on 2021-02-18 08:25:53.237196
 # by pymake (version 1.2.0) for the 'mf5to6' executable 
 # using the 'gfortran' fortran compiler(s).
 
diff --git a/utils/mf5to6/make/makefile b/utils/mf5to6/make/makefile
index 79fdbb0b81b..ee12ce5fd1c 100644
--- a/utils/mf5to6/make/makefile
+++ b/utils/mf5to6/make/makefile
@@ -1,4 +1,4 @@
-# makefile created on 2020-10-22 09:28:15.441302
+# makefile created on 2021-02-18 08:25:53.237196
 # by pymake (version 1.2.0) for the 'mf5to6' executable 
 # using the 'gfortran' fortran compiler(s).
 
@@ -28,155 +28,155 @@ ${SOURCEDIR8}
 .SUFFIXES: .f90 .f .fpp .o
 
 OBJECTS = \
+$(OBJDIR)/ParamModule.o \
 $(OBJDIR)/GwfLakModule.o \
-$(OBJDIR)/StressPeriod.o \
-$(OBJDIR)/GwfWelModule.o \
 $(OBJDIR)/ConverterCommon.o \
-$(OBJDIR)/GwfMnwModule.o \
-$(OBJDIR)/GwfChdModule.o \
-$(OBJDIR)/GlobalPHMF.o \
-$(OBJDIR)/GwfResModule.o \
-$(OBJDIR)/ConstantsPHMF.o \
-$(OBJDIR)/ParamModule.o \
 $(OBJDIR)/GwfLpfModule.o \
-$(OBJDIR)/GwfBcfModule.o \
-$(OBJDIR)/kind.o \
+$(OBJDIR)/mach_mod.o \
 $(OBJDIR)/GwfDrnModule.o \
-$(OBJDIR)/OpenSpec.o \
-$(OBJDIR)/GwfRchModule.o \
+$(OBJDIR)/GwfGhbModule.o \
+$(OBJDIR)/StressPeriod.o \
+$(OBJDIR)/GwfUzfModule_NWT.o \
+$(OBJDIR)/GwfEtsModule.o \
+$(OBJDIR)/GwfWelModule.o \
+$(OBJDIR)/GwfLgrModule.o \
 $(OBJDIR)/GwfEvtModule.o \
 $(OBJDIR)/NWT1_xmdlib.o \
-$(OBJDIR)/compilerversion.o \
 $(OBJDIR)/gwf2hfb7_NWT.o \
-$(OBJDIR)/mach_mod.o \
-$(OBJDIR)/GwfUpwModule.o \
-$(OBJDIR)/GwfLgrModule.o \
-$(OBJDIR)/GwfGhbModule.o \
+$(OBJDIR)/NWT1_module.o \
 $(OBJDIR)/GwfFhbModule.o \
+$(OBJDIR)/GwfChdModule.o \
+$(OBJDIR)/GwfUpwModule.o \
+$(OBJDIR)/GlobalPHMF.o \
+$(OBJDIR)/OpenSpec.o \
+$(OBJDIR)/GwfMnwModule.o \
+$(OBJDIR)/GwfBcfModule.o \
+$(OBJDIR)/GwfResModule.o \
+$(OBJDIR)/ConstantsPHMF.o \
+$(OBJDIR)/GwfRchModule.o \
+$(OBJDIR)/kind.o \
 $(OBJDIR)/GwfRivModule.o \
-$(OBJDIR)/GwfUzfModule_NWT.o \
 $(OBJDIR)/GlobalVariablesPHMF.o \
-$(OBJDIR)/GwfEtsModule.o \
 $(OBJDIR)/Constants.o \
-$(OBJDIR)/NWT1_module.o \
 $(OBJDIR)/SimVariables.o \
+$(OBJDIR)/compilerversion.o \
 $(OBJDIR)/genericutils.o \
-$(OBJDIR)/Connection.o \
-$(OBJDIR)/List.o \
-$(OBJDIR)/Global.o \
-$(OBJDIR)/CharacterContainer.o \
 $(OBJDIR)/GwfSfrModule.o \
-$(OBJDIR)/SfrDiversion.o \
-$(OBJDIR)/pcgn2.o \
+$(OBJDIR)/Global.o \
+$(OBJDIR)/List.o \
+$(OBJDIR)/Connection.o \
 $(OBJDIR)/version.o \
-$(OBJDIR)/Auxiliary.o \
-$(OBJDIR)/GlobalVariables.o \
-$(OBJDIR)/GwfBasModule.o \
-$(OBJDIR)/LakeTributary.o \
-$(OBJDIR)/SimListVariables.o \
 $(OBJDIR)/TimeSeriesRecord.o \
-$(OBJDIR)/LakeOutlet.o \
+$(OBJDIR)/LakeTributary.o \
+$(OBJDIR)/ArrayHandlers.o \
 $(OBJDIR)/LakeConnection.o \
+$(OBJDIR)/LakeOutlet.o \
+$(OBJDIR)/GlobalVariables.o \
+$(OBJDIR)/GwfBasModule.o \
+$(OBJDIR)/pcgn2.o \
+$(OBJDIR)/SimPHMF.o \
+$(OBJDIR)/Auxiliary.o \
+$(OBJDIR)/MemoryHelper.o \
 $(OBJDIR)/NWT1_ilupc_mod.o \
-$(OBJDIR)/ArrayHandlers.o \
+$(OBJDIR)/CharacterContainer.o \
+$(OBJDIR)/SimListVariables.o \
+$(OBJDIR)/SfrDiversion.o \
 $(OBJDIR)/SfrReach.o \
-$(OBJDIR)/SimPHMF.o \
-$(OBJDIR)/GwfSfrCheck.o \
-$(OBJDIR)/ModelPackage.o \
 $(OBJDIR)/SimVariablesPHMF.o \
-$(OBJDIR)/SfrSegment.o \
 $(OBJDIR)/MultiLayerObsModule.o \
+$(OBJDIR)/GwfSfrCheck.o \
 $(OBJDIR)/InputOutput.o \
-$(OBJDIR)/BlockParser.o \
-$(OBJDIR)/ArrayReadersMF5.o \
-$(OBJDIR)/MemoryHelper.o \
-$(OBJDIR)/LineList.o \
-$(OBJDIR)/TimeSeries.o \
-$(OBJDIR)/GwfResSubs.o \
+$(OBJDIR)/SfrSegment.o \
+$(OBJDIR)/Lake.o \
 $(OBJDIR)/Utilities.o \
-$(OBJDIR)/GwfFhbSubs.o \
+$(OBJDIR)/ModelPackage.o \
 $(OBJDIR)/TableTerm.o \
-$(OBJDIR)/Table.o \
-$(OBJDIR)/ChdType.o \
-$(OBJDIR)/Lake.o \
+$(OBJDIR)/LineList.o \
 $(OBJDIR)/ObservePHMF.o \
 $(OBJDIR)/precutls.o \
-$(OBJDIR)/Memory.o \
-$(OBJDIR)/MemoryList.o \
-$(OBJDIR)/MemoryManager.o \
+$(OBJDIR)/Table.o \
+$(OBJDIR)/GwfFhbSubs.o \
+$(OBJDIR)/BlockParser.o \
+$(OBJDIR)/ArrayReadersMF5.o \
 $(OBJDIR)/File.o \
 $(OBJDIR)/FileList.o \
+$(OBJDIR)/TimeSeries.o \
+$(OBJDIR)/Memory.o \
+$(OBJDIR)/GwfResSubs.o \
+$(OBJDIR)/MemoryList.o \
+$(OBJDIR)/ChdType.o \
 $(OBJDIR)/FileWriter.o \
-$(OBJDIR)/DiscretizationBasePHMF.o \
-$(OBJDIR)/Discretization3D.o \
-$(OBJDIR)/StoWriter.o \
 $(OBJDIR)/utl7.o \
-$(OBJDIR)/GwfSfrSubs.o \
-$(OBJDIR)/GwfEvtSubs.o \
-$(OBJDIR)/sip7.o \
-$(OBJDIR)/obs2ghb7.o \
-$(OBJDIR)/NWT1_xmd.o \
-$(OBJDIR)/pcg7.o \
-$(OBJDIR)/TdisWriter.o \
-$(OBJDIR)/GwfChdSubs.o \
-$(OBJDIR)/IcWriter.o \
-$(OBJDIR)/NpfWriter.o \
+$(OBJDIR)/DisWriter.o \
+$(OBJDIR)/StoWriter.o \
+$(OBJDIR)/GwfLgrSubs.o \
 $(OBJDIR)/GwfEtsSubs.o \
-$(OBJDIR)/parutl7.o \
+$(OBJDIR)/de47.o \
 $(OBJDIR)/gmg7.o \
-$(OBJDIR)/obs2riv7.o \
 $(OBJDIR)/GwfHfbSubs_NWT.o \
-$(OBJDIR)/GwfDrnSubs.o \
-$(OBJDIR)/GwfGhbSubs.o \
-$(OBJDIR)/GwfLgrSubs.o \
-$(OBJDIR)/DisWriter.o \
-$(OBJDIR)/gwf2wel7_NWT.o \
-$(OBJDIR)/GwfUzfSubs_NWT.o \
-$(OBJDIR)/GwfLakSubs.o \
+$(OBJDIR)/IcWriter.o \
+$(OBJDIR)/NWT1_gmres.o \
 $(OBJDIR)/obs2drn7.o \
-$(OBJDIR)/de47.o \
-$(OBJDIR)/TdisVariables.o \
+$(OBJDIR)/parutl7.o \
+$(OBJDIR)/MemoryManager.o \
+$(OBJDIR)/TdisWriter.o \
+$(OBJDIR)/obs2chd7.o \
+$(OBJDIR)/GwfEvtSubs.o \
+$(OBJDIR)/GwfLakSubs.o \
+$(OBJDIR)/GwfChdSubs.o \
+$(OBJDIR)/obs2riv7.o \
 $(OBJDIR)/GwfRchSubs.o \
-$(OBJDIR)/gwf2mnw17.o \
-$(OBJDIR)/NWT1_solver.o \
-$(OBJDIR)/ObsBlock.o \
+$(OBJDIR)/GwfDrnSubs.o \
 $(OBJDIR)/GwfRivSubs.o \
-$(OBJDIR)/GwfBasOcSubs.o \
+$(OBJDIR)/NWT1_solver.o \
+$(OBJDIR)/pcg7.o \
+$(OBJDIR)/NpfWriter.o \
 $(OBJDIR)/obs2bas7.o \
-$(OBJDIR)/NWT1_gmres.o \
+$(OBJDIR)/GwfGhbSubs.o \
+$(OBJDIR)/GwfUzfSubs_NWT.o \
+$(OBJDIR)/obs2ghb7.o \
+$(OBJDIR)/GwfSfrSubs.o \
+$(OBJDIR)/sip7.o \
+$(OBJDIR)/GwfBasOcSubs.o \
+$(OBJDIR)/DiscretizationBasePHMF.o \
+$(OBJDIR)/Discretization3D.o \
+$(OBJDIR)/gwf2mnw17.o \
+$(OBJDIR)/NWT1_xmd.o \
 $(OBJDIR)/GwfMnwSubs.o \
-$(OBJDIR)/obs2chd7.o \
 $(OBJDIR)/Mover.o \
-$(OBJDIR)/gwf2mnw2i7.o \
+$(OBJDIR)/gwf2wel7_NWT.o \
+$(OBJDIR)/TdisVariables.o \
+$(OBJDIR)/ObsBlock.o \
 $(OBJDIR)/Preproc.o \
 $(OBJDIR)/ObsWriter.o \
-$(OBJDIR)/RivObsWriter.o \
+$(OBJDIR)/gwf2mnw2i7.o \
+$(OBJDIR)/DrnObsWriter.o \
 $(OBJDIR)/PackageWriter.o \
-$(OBJDIR)/OutputControlWriter.o \
+$(OBJDIR)/DrnPackageWriter.o \
 $(OBJDIR)/WelPackageWriter.o \
-$(OBJDIR)/DrnObsWriter.o \
-$(OBJDIR)/RchPackageWriter.o \
-$(OBJDIR)/ChdObsWriter.o \
+$(OBJDIR)/MawPackageWriter.o \
 $(OBJDIR)/GhbObsWriter.o \
+$(OBJDIR)/ChdObsWriter.o \
+$(OBJDIR)/OutputControlWriter.o \
 $(OBJDIR)/RivPackageWriter.o \
-$(OBJDIR)/DrnPackageWriter.o \
-$(OBJDIR)/HfbPackageWriter.o \
+$(OBJDIR)/EvtPackageWriter.o \
+$(OBJDIR)/RivObsWriter.o \
+$(OBJDIR)/ChdPackageWriter.o \
 $(OBJDIR)/GhbPackageWriter.o \
+$(OBJDIR)/HfbPackageWriter.o \
+$(OBJDIR)/RchPackageWriter.o \
 $(OBJDIR)/MvrPackageWriter.o \
-$(OBJDIR)/MawPackageWriter.o \
-$(OBJDIR)/ChdPackageWriter.o \
 $(OBJDIR)/ImsPackageWriter.o \
 $(OBJDIR)/FhbPackageWriter.o \
-$(OBJDIR)/EvtPackageWriter.o \
 $(OBJDIR)/SfrPackageWriter.o \
-$(OBJDIR)/LakPackageWriter.o \
 $(OBJDIR)/UzfPackageWriter.o \
+$(OBJDIR)/LakPackageWriter.o \
 $(OBJDIR)/Model.o \
+$(OBJDIR)/Exchange.o \
 $(OBJDIR)/GwfBcfSubs.o \
-$(OBJDIR)/GwfBasSubs.o \
-$(OBJDIR)/GwfUpwSubs.o \
 $(OBJDIR)/GwfLpfSubs.o \
-$(OBJDIR)/Exchange.o \
+$(OBJDIR)/GwfUpwSubs.o \
+$(OBJDIR)/GwfBasSubs.o \
 $(OBJDIR)/ModelConverter.o \
 $(OBJDIR)/ExchangeWriter.o \
 $(OBJDIR)/SimFileWriter.o \
diff --git a/utils/zonebudget/make/makedefaults b/utils/zonebudget/make/makedefaults
index 3998219e4d3..adc7c17f84d 100644
--- a/utils/zonebudget/make/makedefaults
+++ b/utils/zonebudget/make/makedefaults
@@ -1,4 +1,4 @@
-# makedefaults created on 2020-10-22 09:28:03.593336
+# makedefaults created on 2021-02-18 08:25:38.343732
 # by pymake (version 1.2.0) for the 'zbud6' executable 
 # using the 'gfortran' fortran compiler(s).
 
diff --git a/utils/zonebudget/make/makefile b/utils/zonebudget/make/makefile
index f6f74170b96..821a85ba50d 100644
--- a/utils/zonebudget/make/makefile
+++ b/utils/zonebudget/make/makefile
@@ -1,4 +1,4 @@
-# makefile created on 2020-10-22 09:28:03.593336
+# makefile created on 2021-02-18 08:25:38.343732
 # by pymake (version 1.2.0) for the 'zbud6' executable 
 # using the 'gfortran' fortran compiler(s).
 
@@ -16,25 +16,25 @@ ${SOURCEDIR2}
 .SUFFIXES: .f90 .fpp .o
 
 OBJECTS = \
-$(OBJDIR)/OpenSpec.o \
 $(OBJDIR)/kind.o \
+$(OBJDIR)/OpenSpec.o \
 $(OBJDIR)/compilerversion.o \
 $(OBJDIR)/Constants.o \
 $(OBJDIR)/SimVariables.o \
-$(OBJDIR)/genericutils.o \
 $(OBJDIR)/defmacro.o \
+$(OBJDIR)/genericutils.o \
+$(OBJDIR)/version.o \
 $(OBJDIR)/ArrayHandlers.o \
 $(OBJDIR)/Message.o \
-$(OBJDIR)/version.o \
 $(OBJDIR)/Sim.o \
-$(OBJDIR)/budgetdata.o \
 $(OBJDIR)/InputOutput.o \
-$(OBJDIR)/Budget.o \
 $(OBJDIR)/ArrayReaders.o \
 $(OBJDIR)/sort.o \
+$(OBJDIR)/budgetdata.o \
+$(OBJDIR)/Budget.o \
+$(OBJDIR)/grb.o \
 $(OBJDIR)/BlockParser.o \
 $(OBJDIR)/zone.o \
-$(OBJDIR)/grb.o \
 $(OBJDIR)/zoneoutput.o \
 $(OBJDIR)/zbud6.o
 
diff --git a/version.txt b/version.txt
index 7e9455dd699..e073ee1f488 100644
--- a/version.txt
+++ b/version.txt
@@ -1,5 +1,5 @@
 # MODFLOW 6 version file automatically created using...make_release.py
-# created on...October 22, 2020 12:23:55
+# created on...February 18, 2021 08:23:34
 
 major = 6
 minor = 2