diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index cfe1e8cfb..4e223d8f7 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -68,6 +68,7 @@ jobs:
             OPTIX_VERSION=${{ matrix.optix_version }}
             GEANT4_VERSION=${{ matrix.geant4_version }}
             CMAKE_VERSION=${{ matrix.cmake_version }}
+            PROJECT_VERSION=${{ github.ref_name }}
           cache-from: type=local,src=/home/runner/.buildx-cache
           cache-to: type=local,dest=/home/runner/.buildx-cache-new,mode=max
 
diff --git a/CMakeLists.txt b/CMakeLists.txt
index ca8269b51..d7b3a9893 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -11,7 +11,15 @@ if(NOT CMAKE_CONFIGURATION_TYPES AND NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE Debug CACHE STRING "Build type")
 endif()
 
-project(eic-opticks VERSION 0.1.0 LANGUAGES CXX CUDA)
+project(eic-opticks VERSION 0.3.0 LANGUAGES CXX CUDA)
+
+include(GitVersion)
+
+# Allow CI/Docker to override the derived version string via -DPROJECT_VERSION_OVERRIDE=...
+if(DEFINED PROJECT_VERSION_OVERRIDE AND NOT "${PROJECT_VERSION_OVERRIDE}" STREQUAL "")
+    set(PROJECT_VERSION_STRING "${PROJECT_VERSION_OVERRIDE}")
+    message(STATUS "Version overridden to: ${PROJECT_VERSION_STRING}")
+endif()
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
diff --git a/Dockerfile b/Dockerfile
index afb8a4993..7931c004e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -81,17 +81,23 @@ RUN uv sync
 
 FROM base AS release
 
+ARG PROJECT_VERSION
+
 COPY . $OPTICKS_HOME
 
 RUN cmake -S $OPTICKS_HOME -B $OPTICKS_BUILD -DCMAKE_INSTALL_PREFIX=$OPTICKS_PREFIX -DCMAKE_BUILD_TYPE=Release \
+      ${PROJECT_VERSION:+-DPROJECT_VERSION_OVERRIDE=$PROJECT_VERSION} \
  && cmake --build $OPTICKS_BUILD --parallel --target install
 
 
 FROM base AS develop
 
+ARG PROJECT_VERSION
+
 RUN apt update && apt install -y x11-apps mesa-utils vim
 
 COPY . $OPTICKS_HOME
 
 RUN cmake -S $OPTICKS_HOME -B $OPTICKS_BUILD -DCMAKE_INSTALL_PREFIX=$OPTICKS_PREFIX -DCMAKE_BUILD_TYPE=Debug \
+      ${PROJECT_VERSION:+-DPROJECT_VERSION_OVERRIDE=$PROJECT_VERSION} \
  && cmake --build $OPTICKS_BUILD --parallel --target install
diff --git a/cmake/GitVersion.cmake b/cmake/GitVersion.cmake
new file mode 100644
index 000000000..ec24a14dd
--- /dev/null
+++ b/cmake/GitVersion.cmake
@@ -0,0 +1,45 @@
+# GitVersion.cmake
+#
+# Derives PROJECT_VERSION_STRING and PROJECT_GIT_REVISION from git when available.
+# Falls back to PROJECT_VERSION when git is not present (e.g. Docker builds).
+#
+# Sets in the caller's scope:
+#   PROJECT_VERSION_STRING - Version string: exact tag ("0.3.0") or
+#                            tag+distance+sha ("0.3.0-2-gabcdef-dirty").
+#                            Falls back to PROJECT_VERSION.
+#   PROJECT_GIT_REVISION   - Short commit hash, or empty string if git is unavailable.
+
+find_package(Git QUIET)
+
+if(GIT_FOUND)
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} describe --tags --match "[0-9]*" --dirty
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE _git_describe
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+        ERROR_QUIET
+        RESULT_VARIABLE _git_result
+    )
+    execute_process(
+        COMMAND ${GIT_EXECUTABLE} rev-parse --short HEAD
+        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+        OUTPUT_VARIABLE PROJECT_GIT_REVISION
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+        ERROR_QUIET
+        RESULT_VARIABLE _git_rev_result
+    )
+    if(_git_rev_result)
+        set(PROJECT_GIT_REVISION "")
+    endif()
+else()
+    set(_git_result 1)
+    set(PROJECT_GIT_REVISION "")
+endif()
+
+if(_git_result EQUAL 0 AND _git_describe)
+    set(PROJECT_VERSION_STRING "${_git_describe}")
+    message(STATUS "Version from git: ${PROJECT_VERSION_STRING}")
+else()
+    set(PROJECT_VERSION_STRING "${PROJECT_VERSION}")
+    message(STATUS "Version from project(): ${PROJECT_VERSION_STRING} (git not available)")
+endif()
diff --git a/pyproject.toml b/pyproject.toml
index 7ef5bc28e..c45694a17 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "optiphy"
-version = "0.0.0"
+version = "0.3.0"
 description = ""
 authors = [ { name = "Dmitri Smirnov", email = "dmixsmi@gmail.com" } ]
 requires-python = ">=3.10"
diff --git a/src/config.cpp b/src/config.cpp
index 844244017..7b2651ba2 100644
--- a/src/config.cpp
+++ b/src/config.cpp
@@ -18,6 +18,16 @@ namespace gphox {
 
 using namespace std;
 
+const char *Config::Version()
+{
+    return PROJECT_VERSION;
+}
+
+const char *Config::GitRevision()
+{
+    return PROJECT_GIT_REVISION;
+}
+
 constexpr const char *GPHOX_PTX_PATH_ENV = "CSGOptiX__optixpath";
 
 bool FileExists(const std::string &path)
diff --git a/src/config.h b/src/config.h
index 1fc5c838d..4ee5ad4fd 100644
--- a/src/config.h
+++ b/src/config.h
@@ -21,6 +21,12 @@ class Config
 
   static std::string PtxPath(const std::string &ptx_name = "CSGOptiX7.ptx");
 
+  /// Returns the project version (e.g. "0.3.0" or "0.3.0-2-gabcdef-dirty")
+  static const char *Version();
+
+  /// Returns the short git commit hash, or empty string if unavailable
+  static const char *GitRevision();
+
   /// A unique name associated with this Config
   std::string name;
 
diff --git a/src/config_path.h.in b/src/config_path.h.in
index 19bda3687..054c9f9c6 100644
--- a/src/config_path.h.in
+++ b/src/config_path.h.in
@@ -2,3 +2,9 @@
 
 #define GPHOX_CONFIG_SEARCH_PATHS ".:config:@GPHOX_INSTALL_FULL_DATADIR@/config"
 #define GPHOX_PTX_DIR "@CMAKE_INSTALL_FULL_LIBDIR@"
+
+#define PROJECT_VERSION "@PROJECT_VERSION_STRING@"
+#define PROJECT_VERSION_MAJOR @PROJECT_VERSION_MAJOR@
+#define PROJECT_VERSION_MINOR @PROJECT_VERSION_MINOR@
+#define PROJECT_VERSION_PATCH @PROJECT_VERSION_PATCH@
+#define PROJECT_GIT_REVISION "@PROJECT_GIT_REVISION@"