diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 8bbc7d01f..3578144b2 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -4,7 +4,9 @@ build:
   os: "ubuntu-24.04"
   tools:
     python: "3.12"
-
+  jobs:
+    post_checkout:
+      - git fetch --unshallow || true
 sphinx:
   configuration: docs/source/conf.py
 
diff --git a/Dockerfile b/Dockerfile
index 583682ef5..1ae615a50 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -194,7 +194,7 @@ ENV LIBMESH_INSTALL_DIR=$HOME/LIBMESH
 
 # clone and install openmc
 RUN mkdir -p ${HOME}/OpenMC && cd ${HOME}/OpenMC \
-    && git clone --shallow-submodules --recurse-submodules --single-branch -b ${openmc_branch} --depth=1 ${OPENMC_REPO} \
+    && git clone --shallow-submodules --recurse-submodules --single-branch -b ${openmc_branch} ${OPENMC_REPO} \
     && mkdir build && cd build ; \
     if [ ${build_dagmc} = "on" ] && [ ${build_libmesh} = "on" ]; then \
         cmake ../openmc \
diff --git a/LICENSE b/LICENSE
index 1f9198c1e..8a60b66bf 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2011-2024 Massachusetts Institute of Technology, UChicago Argonne
+Copyright (c) 2011-2025 Massachusetts Institute of Technology, UChicago Argonne
 LLC, and OpenMC contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
diff --git a/cmake/Modules/GetVersionFromGit.cmake b/cmake/Modules/GetVersionFromGit.cmake
index ee6bac827..42b3725f2 100644
--- a/cmake/Modules/GetVersionFromGit.cmake
+++ b/cmake/Modules/GetVersionFromGit.cmake
@@ -39,6 +39,11 @@ if(EXISTS "${CMAKE_SOURCE_DIR}/.git" AND GIT_FOUND)
         OUTPUT_STRIP_TRAILING_WHITESPACE
     )
 
+    # If no tags are found, instruct user to fetch them
+    if(VERSION_STRING STREQUAL "")
+        message(FATAL_ERROR "No git tags found. Run 'git fetch --tags' and try again.")
+    endif()
+
     # Extract the commit hash
     execute_process(
         COMMAND git rev-parse HEAD
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 618cbe648..8aeff5cdc 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -62,7 +62,7 @@ master_doc = 'index'
 
 # General information about the project.
 project = 'OpenMC'
-copyright = '2011-2024, Massachusetts Institute of Technology, UChicago Argonne LLC, and OpenMC contributors'
+copyright = '2011-2025, Massachusetts Institute of Technology, UChicago Argonne LLC, and OpenMC contributors'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -71,11 +71,8 @@ copyright = '2011-2024, Massachusetts Institute of Technology, UChicago Argonne
 
 import openmc
 
-# The short X.Y version.
-version = ".".join(openmc.__version__.split('.')[:2])
-
 # The full version, including alpha/beta/rc tags.
-release = openmc.__version__
+version = release = openmc.__version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/source/license.rst b/docs/source/license.rst
index 23315e8fe..0a90a7441 100644
--- a/docs/source/license.rst
+++ b/docs/source/license.rst
@@ -4,7 +4,7 @@
 License Agreement
 =================
 
-Copyright © 2011-2024 Massachusetts Institute of Technology, UChicago Argonne
+Copyright © 2011-2025 Massachusetts Institute of Technology, UChicago Argonne
 LLC, and OpenMC contributors
 
 Permission is hereby granted, free of charge, to any person obtaining a copy of
diff --git a/man/man1/openmc.1 b/man/man1/openmc.1
index d121a8956..7826a759a 100644
--- a/man/man1/openmc.1
+++ b/man/man1/openmc.1
@@ -63,7 +63,7 @@ Indicates the default path to an HDF5 file that contains multi-group cross
 section libraries if the user has not specified the <cross_sections> tag in
 .I materials.xml\fP.
 .SH LICENSE
-Copyright \(co 2011-2024 Massachusetts Institute of Technology, UChicago
+Copyright \(co 2011-2025 Massachusetts Institute of Technology, UChicago
 Argonne LLC, and OpenMC contributors.
 .PP
 Permission is hereby granted, free of charge, to any person obtaining a copy of