diff --git a/clients/nodejs/sliderule/package.json b/clients/nodejs/sliderule/package.json
index a27612add..1eb33ca5b 100644
--- a/clients/nodejs/sliderule/package.json
+++ b/clients/nodejs/sliderule/package.json
@@ -2,7 +2,7 @@
   "name": "@sliderule/sliderule",
   "type": "module",
   "description": "client for the SlideRule on-demand science data processing service",
-  "version": "4.2.3",
+  "version": "4.3.0",
   "keywords": [
     "sliderule"
   ],
@@ -41,4 +41,4 @@
   "directories": {
     "test": "tests"
   }
-}
+}
\ No newline at end of file
diff --git a/clients/python/version.txt b/clients/python/version.txt
index 434999f9e..9ca239827 100644
--- a/clients/python/version.txt
+++ b/clients/python/version.txt
@@ -1 +1 @@
-v4.2.3
+v4.3.0
diff --git a/version.txt b/version.txt
index 434999f9e..9ca239827 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-v4.2.3
+v4.3.0