diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index acb465ca4..a55dc5f04 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -241,7 +241,7 @@ jobs:
           chrome-version: stable
       - name: Install ChromeDriver
         run: |
-          pip install chromedriver-binary-auto
+          pip install chromedriver-binary-auto==0.2.6
       - name: Download vegafusion wheel
         uses: actions/download-artifact@cbed621e49e4c01b044d60f6c80ea4ed6328b281 # pin@v2
         with:
diff --git a/Cargo.lock b/Cargo.lock
index b489607e6..1f8ae4631 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4289,7 +4289,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "arrow",
  "base64",
@@ -4306,7 +4306,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-core"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "bytes",
  "chrono",
@@ -4336,7 +4336,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-dataframe"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "arrow",
  "async-trait",
@@ -4347,7 +4347,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-datafusion-udfs"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "chrono",
  "chrono-tz",
@@ -4360,7 +4360,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-jni"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "jni",
  "serde_json",
@@ -4373,7 +4373,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-python-embed"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "arrow",
  "async-trait",
@@ -4397,7 +4397,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-runtime"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "async-lock",
  "async-recursion",
@@ -4448,7 +4448,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-server"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "assert_cmd",
  "clap 4.2.1",
@@ -4472,7 +4472,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-sql"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "arrow",
  "async-std",
@@ -4502,7 +4502,7 @@ dependencies = [
 
 [[package]]
 name = "vegafusion-wasm"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 dependencies = [
  "chrono",
  "console_error_panic_hook",
diff --git a/java/version.txt b/java/version.txt
index aecde1a02..65682deef 100644
--- a/java/version.txt
+++ b/java/version.txt
@@ -1 +1 @@
-1.4.0-rc3
\ No newline at end of file
+1.4.0-rc4
\ No newline at end of file
diff --git a/javascript/vegafusion-embed/package-lock.json b/javascript/vegafusion-embed/package-lock.json
index cb6c23df9..65cc685ca 100644
--- a/javascript/vegafusion-embed/package-lock.json
+++ b/javascript/vegafusion-embed/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vegafusion-embed",
-  "version": "1.4.0-rc3",
+  "version": "1.4.0-rc4",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/javascript/vegafusion-embed/package.json b/javascript/vegafusion-embed/package.json
index d5d0b2aba..0e8662683 100644
--- a/javascript/vegafusion-embed/package.json
+++ b/javascript/vegafusion-embed/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vegafusion-embed",
-  "version": "1.4.0-rc3",
+  "version": "1.4.0-rc4",
   "description": "Library to embed vegafusion visualizations",
   "keywords": [
     "vega",
diff --git a/python/vegafusion-jupyter/package-lock.json b/python/vegafusion-jupyter/package-lock.json
index b5a8392c7..edbb083b4 100644
--- a/python/vegafusion-jupyter/package-lock.json
+++ b/python/vegafusion-jupyter/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vegafusion-jupyter",
-  "version": "1.4.0-rc3",
+  "version": "1.4.0-rc4",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/python/vegafusion-jupyter/package.json b/python/vegafusion-jupyter/package.json
index 195c2ef47..b11ed28fa 100644
--- a/python/vegafusion-jupyter/package.json
+++ b/python/vegafusion-jupyter/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vegafusion-jupyter",
-  "version": "1.4.0-rc3",
+  "version": "1.4.0-rc4",
   "description": "Altair Jupyter Widget library that relies on VegaFusion for serverside calculations",
   "keywords": [
     "jupyter",
diff --git a/python/vegafusion-jupyter/vegafusion_jupyter/_frontend.py b/python/vegafusion-jupyter/vegafusion_jupyter/_frontend.py
index a6f0fd8ee..b05a4ff21 100644
--- a/python/vegafusion-jupyter/vegafusion_jupyter/_frontend.py
+++ b/python/vegafusion-jupyter/vegafusion_jupyter/_frontend.py
@@ -2,4 +2,4 @@
 Information about the frontend package of the widgets.
 """    
 module_name = "vegafusion-jupyter"
-module_version = "^1.4.0-rc3"
+module_version = "^1.4.0-rc4"
diff --git a/python/vegafusion-jupyter/vegafusion_jupyter/_version.py b/python/vegafusion-jupyter/vegafusion_jupyter/_version.py
index a3e140113..098928c18 100644
--- a/python/vegafusion-jupyter/vegafusion_jupyter/_version.py
+++ b/python/vegafusion-jupyter/vegafusion_jupyter/_version.py
@@ -1 +1 @@
-__version__ = '1.4.0-rc3'
+__version__ = '1.4.0-rc4'
diff --git a/python/vegafusion/setup.cfg b/python/vegafusion/setup.cfg
index cc9b95555..abfe9d19d 100644
--- a/python/vegafusion/setup.cfg
+++ b/python/vegafusion/setup.cfg
@@ -4,7 +4,7 @@ universal = 0
 [metadata]
 name = vegafusion
 description = Core tools for using VegaFusion from Python
-version = 1.4.0-rc3
+version = 1.4.0-rc4
 long_description = file: README.md
 long_description_content_type = text/markdown
 keywords = vega, altair, vegafusion, arrow
@@ -35,6 +35,6 @@ install_requires =
 
 [options.extras_require]
 embed = 
-	vegafusion-python-embed==1.4.0-rc3
+	vegafusion-python-embed==1.4.0-rc4
 	vl-convert-python>=0.7.0
 
diff --git a/python/vegafusion/vegafusion/_version.py b/python/vegafusion/vegafusion/_version.py
index a3e140113..098928c18 100644
--- a/python/vegafusion/vegafusion/_version.py
+++ b/python/vegafusion/vegafusion/_version.py
@@ -1 +1 @@
-__version__ = '1.4.0-rc3'
+__version__ = '1.4.0-rc4'
diff --git a/vegafusion-common/Cargo.toml b/vegafusion-common/Cargo.toml
index 80ccd9b74..937b1a979 100644
--- a/vegafusion-common/Cargo.toml
+++ b/vegafusion-common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 description = "Common components required by multiple VegaFusion crates"
 license = "BSD-3-Clause"
diff --git a/vegafusion-core/Cargo.toml b/vegafusion-core/Cargo.toml
index 63f21ac58..4723de972 100644
--- a/vegafusion-core/Cargo.toml
+++ b/vegafusion-core/Cargo.toml
@@ -2,7 +2,7 @@
 name = "vegafusion-core"
 license = "BSD-3-Clause"
 edition = "2021"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 description = "Core components required by multiple VegaFusion crates, with WASM compatibility"
 
 [features]
@@ -36,7 +36,7 @@ features = [ "preserve_order",]
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
 features = [ "json", "sqlparser",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.datafusion-common]
 version = "27.0.0"
diff --git a/vegafusion-dataframe/Cargo.toml b/vegafusion-dataframe/Cargo.toml
index 3dda7b023..597c4520a 100644
--- a/vegafusion-dataframe/Cargo.toml
+++ b/vegafusion-dataframe/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "vegafusion-dataframe"
 license = "BSD-3-Clause"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 description = "VegaFusion's DataFrame and Connection traits"
 
@@ -10,7 +10,7 @@ async-trait = "0.1.53"
 
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.datafusion-common]
 version = "27.0.0"
diff --git a/vegafusion-datafusion-udfs/Cargo.toml b/vegafusion-datafusion-udfs/Cargo.toml
index 090c16d73..0e5519546 100644
--- a/vegafusion-datafusion-udfs/Cargo.toml
+++ b/vegafusion-datafusion-udfs/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "vegafusion-datafusion-udfs"
 license = "BSD-3-Clause"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 description = "Custom DataFusion UDFs used by VegaFusion"
 
@@ -14,7 +14,7 @@ regex = "^1.5.5"
 
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.datafusion-physical-expr]
 version = "27.0.0"
diff --git a/vegafusion-jni/Cargo.toml b/vegafusion-jni/Cargo.toml
index 144855806..ba455af22 100644
--- a/vegafusion-jni/Cargo.toml
+++ b/vegafusion-jni/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "vegafusion-jni"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 
 [lib]
@@ -15,21 +15,21 @@ serde_json = "1.0.96"
 
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "jni",]
 
 [dependencies.vegafusion-core]
 path = "../vegafusion-core"
 features = [ "tonic_support",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-runtime]
 path = "../vegafusion-runtime"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-sql]
 path = "../vegafusion-sql"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "datafusion-conn",]
 
 [dependencies.tokio]
diff --git a/vegafusion-python-embed/Cargo.toml b/vegafusion-python-embed/Cargo.toml
index b114283c2..b7a7a63d2 100644
--- a/vegafusion-python-embed/Cargo.toml
+++ b/vegafusion-python-embed/Cargo.toml
@@ -2,7 +2,7 @@
 name = "vegafusion-python-embed"
 license = "BSD-3-Clause"
 edition = "2021"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 description = "vegafusion-python-embed PyO3 Python Package"
 
 [lib]
@@ -36,27 +36,27 @@ features = [ "pyarrow",]
 
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
-features = [ "pyo3", "datafusion-proto", "base64"]
-version = "1.4.0-rc3"
+features = [ "pyo3", "datafusion-proto", "base64",]
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-core]
 path = "../vegafusion-core"
 features = [ "pyarrow",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-runtime]
 path = "../vegafusion-runtime"
 features = [ "pyarrow",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-sql]
 path = "../vegafusion-sql"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "datafusion-conn",]
 
 [dependencies.vegafusion-dataframe]
 path = "../vegafusion-dataframe"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.datafusion-proto]
 version = "27.0.0"
diff --git a/vegafusion-runtime/Cargo.toml b/vegafusion-runtime/Cargo.toml
index e1638a54d..f31d61ffb 100644
--- a/vegafusion-runtime/Cargo.toml
+++ b/vegafusion-runtime/Cargo.toml
@@ -6,7 +6,7 @@ harness = false
 name = "vegafusion-runtime"
 license = "BSD-3-Clause"
 edition = "2021"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 description = "VegaFusion Runtime"
 
 [features]
@@ -59,20 +59,20 @@ version = "0.35.0"
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
 features = [ "json", "sqlparser", "prettyprint",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-core]
 path = "../vegafusion-core"
 features = [ "sqlparser",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-datafusion-udfs]
 path = "../vegafusion-datafusion-udfs"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-dataframe]
 path = "../vegafusion-dataframe"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.serde]
 version = "1.0.137"
@@ -110,5 +110,5 @@ features = [ "async_tokio",]
 
 [dev-dependencies.vegafusion-sql]
 path = "../vegafusion-sql"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "datafusion-conn",]
diff --git a/vegafusion-server/Cargo.toml b/vegafusion-server/Cargo.toml
index 1d8134441..cfb31c2cb 100644
--- a/vegafusion-server/Cargo.toml
+++ b/vegafusion-server/Cargo.toml
@@ -5,7 +5,7 @@ path = "src/main.rs"
 [package]
 name = "vegafusion-server"
 license = "BSD-3-Clause"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 description = "VegaFusion Server"
 
@@ -29,20 +29,20 @@ prost-build = "0.11.4"
 
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-core]
 path = "../vegafusion-core"
 features = [ "tonic_support",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-runtime]
 path = "../vegafusion-runtime"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-sql]
 path = "../vegafusion-sql"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "datafusion-conn",]
 
 [dependencies.tokio]
diff --git a/vegafusion-sql/Cargo.toml b/vegafusion-sql/Cargo.toml
index 3704a2b34..191771b73 100644
--- a/vegafusion-sql/Cargo.toml
+++ b/vegafusion-sql/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "vegafusion-sql"
 license = "BSD-3-Clause"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 description = "VegaFusion SQL dialect generation and connection implementations"
 
@@ -24,16 +24,16 @@ version = "0.34.0"
 
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "sqlparser",]
 
 [dependencies.vegafusion-dataframe]
 path = "../vegafusion-dataframe"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-datafusion-udfs]
 path = "../vegafusion-datafusion-udfs"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 optional = true
 
 [dependencies.arrow]
@@ -83,11 +83,11 @@ features = [ "preserve_order",]
 
 [dev-dependencies.vegafusion-datafusion-udfs]
 path = "../vegafusion-datafusion-udfs"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dev-dependencies.vegafusion-common]
 path = "../vegafusion-common"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 features = [ "sqlparser", "json", "prettyprint",]
 
 [dev-dependencies.tokio]
diff --git a/vegafusion-wasm/Cargo.toml b/vegafusion-wasm/Cargo.toml
index f4c91e935..465737935 100644
--- a/vegafusion-wasm/Cargo.toml
+++ b/vegafusion-wasm/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "vegafusion-wasm"
 license = "BSD-3-Clause"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 edition = "2021"
 description = "VegaFusion WASM package for embedding Vega charts in the browser with a connection to a VegaFusion Runtime\n"
 
@@ -26,11 +26,11 @@ wasm-bindgen-test = "0.3.13"
 [dependencies.vegafusion-common]
 path = "../vegafusion-common"
 features = [ "json",]
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.vegafusion-core]
 path = "../vegafusion-core"
-version = "1.4.0-rc3"
+version = "1.4.0-rc4"
 
 [dependencies.serde]
 version = "1.0.137"
diff --git a/vegafusion-wasm/package-lock.json b/vegafusion-wasm/package-lock.json
index 0152f6d99..42d10ebcf 100644
--- a/vegafusion-wasm/package-lock.json
+++ b/vegafusion-wasm/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vegafusion-wasm",
-  "version": "1.4.0-rc3",
+  "version": "1.4.0-rc4",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/vegafusion-wasm/package.json b/vegafusion-wasm/package.json
index a5b6309da..d050763ef 100644
--- a/vegafusion-wasm/package.json
+++ b/vegafusion-wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vegafusion-wasm",
-  "version": "1.4.0-rc3",
+  "version": "1.4.0-rc4",
   "author": {
     "name": "Jon Mease",
     "email": "jon@vegafusion.io",