diff --git a/.gitignore b/.gitignore
index 5576ef0b4..3f1996eb7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -95,3 +95,6 @@ autotest/.noseids
 **.env
 venv
 app
+
+# IDE files
+.vscode
\ No newline at end of file
diff --git a/CITATION.cff b/CITATION.cff
index d32c91468..f911a18b6 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -3,8 +3,8 @@ message: If you use this software, please cite both the article from preferred-c
   and the software itself.
 type: software
 title: FloPy
-version: 3.4.2.dev0
-date-released: '2023-06-30'
+version: 3.5.0.dev0
+date-released: '2023-07-13'
 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
index 233177e14..616afcf98 100644
--- 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 3.4.2.dev0 (preliminary)
+### Version 3.5.0.dev0 (preliminary)
 [![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)
 
@@ -142,7 +142,7 @@ 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., 2023, FloPy v3.4.2.dev0 (preliminary): U.S. Geological Survey Software Release, 30 June 2023, 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., 2023, FloPy v3.5.0.dev0 (preliminary): U.S. Geological Survey Software Release, 13 July 2023, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
 
 
 Additional FloPy Related Publications
diff --git a/code.json b/code.json
index ca24c1e54..d802f08ba 100644
--- a/code.json
+++ b/code.json
@@ -29,9 +29,9 @@
         "downloadURL": "https://code.usgs.gov/usgs/modflow/flopy/archive/master.zip",
         "vcs": "git",
         "laborHours": -1,
-        "version": "3.4.2.dev0",
+        "version": "3.5.0.dev0",
         "date": {
-            "metadataLastUpdated": "2023-06-30"
+            "metadataLastUpdated": "2023-07-13"
         },
         "organization": "U.S. Geological Survey",
         "permissions": {
diff --git a/docs/PyPI_release.md b/docs/PyPI_release.md
index 9ea6c3264..305284e8b 100644
--- a/docs/PyPI_release.md
+++ b/docs/PyPI_release.md
@@ -30,7 +30,7 @@ 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., 2023, FloPy v3.4.2.dev0 (preliminary): U.S. Geological Survey Software Release, 30 June 2023, 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., 2023, FloPy v3.5.0.dev0 (preliminary): U.S. Geological Survey Software Release, 13 July 2023, https://doi.org/10.5066/F7BK19FH](https://doi.org/10.5066/F7BK19FH)
 
 
 Disclaimer
diff --git a/flopy/version.py b/flopy/version.py
index 23af23a36..0d06ec8c9 100644
--- a/flopy/version.py
+++ b/flopy/version.py
@@ -1,3 +1,3 @@
-# flopy version file automatically created using update_version.py on June 30, 2023 08:29:09
+# flopy version file automatically created using update_version.py on July 13, 2023 18:32:27
 
-__version__ = "3.4.2.dev0"
+__version__ = "3.5.0.dev0"
diff --git a/version.txt b/version.txt
index 7387b31ea..33253064e 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-3.4.2.dev0
\ No newline at end of file
+3.5.0.dev0
\ No newline at end of file