diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 4f12047f..4d475586 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 3.3.2
+current_version = 3.4.0
 commit = False
 tag = False
 
diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
index ef67a15c..dcbd8116 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -64,7 +64,7 @@ body:
       label: GSD
       description: |
         What version of GSD are you using?
-      placeholder: 3.3.2
+      placeholder: 3.4.0
     validations:
       required: true
   - type: markdown
diff --git a/.github/ISSUE_TEMPLATE/release.md b/.github/ISSUE_TEMPLATE/release.md
index fcde0845..42b008a7 100644
--- a/.github/ISSUE_TEMPLATE/release.md
+++ b/.github/ISSUE_TEMPLATE/release.md
@@ -1,7 +1,7 @@
 ---
 name: Release checklist
 about: '[for maintainer use]'
-title: 'Release gsd 3.3.2'
+title: 'Release gsd 3.4.0'
 labels: ''
 assignees: 'joaander'
 
diff --git a/.mailmap b/.mailmap
index 4178d152..e0359a7c 100644
--- a/.mailmap
+++ b/.mailmap
@@ -3,3 +3,5 @@ Bradley Dice <bdice@umich.edu> Bradley Dice <bdice@bradleydice.com>
 Vyas Ramasubramani <vramasub@umich.edu> Vyas <vramasub@umich.edu>
 Jenny Fothergill <jennyfothergill@u.boisestate.edu> jennyfothergill <39961845+jennyfothergill@users.noreply.github.com>
 Jens Glaser <jsglaser@umich.edu> jglaser <jsglaser@umich.edu>
+Joseph Burkhart <joaburkh@umich.edu> josephburkhart <joaburkh@umich.edu>
+Joseph Burkhart <joaburkh@umich.edu> Joseph Burkhart <61951318+josephburkhart@users.noreply.github.com>
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 1d23cb69..83e58c53 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -15,7 +15,7 @@ repos:
   - id: check-case-conflict
   - id: mixed-line-ending
 - repo: https://github.com/asottile/pyupgrade
-  rev: 'v3.17.0'
+  rev: 'v3.18.0'
   hooks:
     - id: pyupgrade
       args:
@@ -36,12 +36,12 @@ repos:
     - --keep-before=#!
     - --keep-after=.. include
 - repo: https://github.com/astral-sh/ruff-pre-commit
-  rev: 'v0.6.9'
+  rev: 'v0.7.0'
   hooks:
   - id: ruff-format
   - id: ruff
 - repo: https://github.com/pre-commit/mirrors-clang-format
-  rev: v19.1.1
+  rev: v19.1.2
   hooks:
   - id: clang-format
     types_or: [c, c++]
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index e0a0636e..4d206e58 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -10,16 +10,19 @@ Change Log
 3.x
 ---
 
-3.4.0 (not yet released)
-^^^^^^^^^^^^^^^^^^^^^^^^
+3.4.0 (2024-10-18)
+^^^^^^^^^^^^^^^^^^
 
 *Added:*
 
-* New chunk type for string data - valid in file layer versions 2.1 and later
+* ``GSD_TYPE_CHARACTER`` chunk type for string data - valid in file layer versions 2.1 and later
   (`#391 <https://github.com/glotzerlab/gsd/pull/391>`__).
 
 *Changed:*
 
+* The ``log`` dictionary in a hoomd frame now accepts string values. ``read_log`` correspondingly
+  produces a NumPy array of variable length strings
+  (`#391 <https://github.com/glotzerlab/gsd/pull/391>`__).
 * Require NumPy >= 2.0
   (`#391 <https://github.com/glotzerlab/gsd/pull/391>`__).
 
diff --git a/Doxyfile b/Doxyfile
index 564d9fea..527bf852 100644
--- a/Doxyfile
+++ b/Doxyfile
@@ -5,7 +5,7 @@
 #---------------------------------------------------------------------------
 DOXYFILE_ENCODING      = UTF-8
 PROJECT_NAME           = "GSD"
-PROJECT_NUMBER         = v3.3.2
+PROJECT_NUMBER         = v3.4.0
 PROJECT_BRIEF          = "General simulation data"
 PROJECT_LOGO           =
 OUTPUT_DIRECTORY       = devdoc
diff --git a/gsd/pygsd.py b/gsd/pygsd.py
index 9e1adfec..eba4e317 100644
--- a/gsd/pygsd.py
+++ b/gsd/pygsd.py
@@ -36,7 +36,7 @@
 
 import numpy
 
-version = '3.3.2'
+version = '3.4.0'
 
 logger = logging.getLogger('gsd.pygsd')
 
diff --git a/gsd/version.py b/gsd/version.py
index fa5f39ff..72219113 100644
--- a/gsd/version.py
+++ b/gsd/version.py
@@ -9,7 +9,7 @@
                    not the file layer version it reads/writes.
 """
 
-version = '3.3.2'
+version = '3.4.0'
 
 __all__ = [
     'version',
diff --git a/pyproject.toml b/pyproject.toml
index 700919f0..36ec8b0f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,7 +1,7 @@
 [project]
 requires-python = ">=3.6"
 name = "gsd"
-version = "3.3.2"
+version = "3.4.0"
 description = "General simulation data file format."
 readme = "README.md"
 license = {text = "BSD-2-Clause"}
@@ -25,7 +25,7 @@ gsd = "gsd.__main__:main"
 [project.urls]
 Homepage = "https://gsd.readthedocs.io"
 Documentation = "https://gsd.readthedocs.io"
-Download = "https://github.com/glotzerlab/gsd/releases/download/v3.3.2/gsd-3.3.2.tar.gz"
+Download = "https://github.com/glotzerlab/gsd/releases/download/v3.4.0/gsd-3.4.0.tar.gz"
 Source = "https://github.com/glotzerlab/gsd"
 Issues = "https://github.com/glotzerlab/gsd/issues"