diff --git a/CHANGELOG.md b/CHANGELOG.md
index bf725d966..38f3c995a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,6 @@
 # Changelog
 
-## 2.43.0-rc.1 / 2023-03-16
-
-* [BUGFIX] Fixed a bug where changes in the Builder's Range function could lead to skipped labels during iteration (#12145)
-
-## 2.43.0-rc.0 / 2023-03-09
+## 2.43.0 / 2023-03-21
 
 We are working on some performance improvements in Prometheus, which are only
 built into Prometheus when compiling it using the Go tag `stringlabels`
@@ -12,9 +8,9 @@ built into Prometheus when compiling it using the Go tag `stringlabels`
 structure for labels that uses a single string to hold all the label/values,
 resulting in a smaller heap size and some speedups in most cases. We would like
 to encourage users who are interested in these improvements to help us measure
-the gains on their production architecture. Building Prometheus from source
-with the `stringlabels` Go tag and providing feedback on its effectiveness in
-their specific use cases would be incredibly helpful to us. #10991
+the gains on their production architecture. We are providing release artefacts
+2.43.0+stringlabels and docker images tagged v2.43.0-stringlabels with those
+improvements for testing. #10991
 
 * [FEATURE] Promtool: Add HTTP client configuration to query commands. #11487
 * [FEATURE] Scrape: Add `include_scrape_configs` to include scrape configs from different files. #12019
diff --git a/VERSION b/VERSION
index a55e12bb9..5b9cd9afd 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.43.0-rc.1
+2.43.0
diff --git a/web/ui/module/codemirror-promql/package.json b/web/ui/module/codemirror-promql/package.json
index 8d7a73ec7..f20a63468 100644
--- a/web/ui/module/codemirror-promql/package.json
+++ b/web/ui/module/codemirror-promql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@prometheus-io/codemirror-promql",
-  "version": "0.43.0-rc.1",
+  "version": "0.43.0",
   "description": "a CodeMirror mode for the PromQL language",
   "types": "dist/esm/index.d.ts",
   "module": "dist/esm/index.js",
@@ -29,7 +29,7 @@
   },
   "homepage": "https://github.com/prometheus/prometheus/blob/main/web/ui/module/codemirror-promql/README.md",
   "dependencies": {
-    "@prometheus-io/lezer-promql": "0.43.0-rc.1",
+    "@prometheus-io/lezer-promql": "0.43.0",
     "lru-cache": "^6.0.0"
   },
   "devDependencies": {
diff --git a/web/ui/module/lezer-promql/package.json b/web/ui/module/lezer-promql/package.json
index 0fb3bda0e..411251e56 100644
--- a/web/ui/module/lezer-promql/package.json
+++ b/web/ui/module/lezer-promql/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@prometheus-io/lezer-promql",
-  "version": "0.43.0-rc.1",
+  "version": "0.43.0",
   "description": "lezer-based PromQL grammar",
   "main": "dist/index.cjs",
   "type": "module",
diff --git a/web/ui/package-lock.json b/web/ui/package-lock.json
index 736c438fd..2e334cf9e 100644
--- a/web/ui/package-lock.json
+++ b/web/ui/package-lock.json
@@ -28,10 +28,10 @@
     },
     "module/codemirror-promql": {
       "name": "@prometheus-io/codemirror-promql",
-      "version": "0.43.0-rc.1",
+      "version": "0.43.0",
       "license": "Apache-2.0",
       "dependencies": {
-        "@prometheus-io/lezer-promql": "0.43.0-rc.1",
+        "@prometheus-io/lezer-promql": "0.43.0",
         "lru-cache": "^6.0.0"
       },
       "devDependencies": {
@@ -61,7 +61,7 @@
     },
     "module/lezer-promql": {
       "name": "@prometheus-io/lezer-promql",
-      "version": "0.43.0-rc.1",
+      "version": "0.43.0",
       "license": "Apache-2.0",
       "devDependencies": {
         "@lezer/generator": "^1.2.2",
@@ -20763,7 +20763,7 @@
     },
     "react-app": {
       "name": "@prometheus-io/app",
-      "version": "0.43.0-rc.1",
+      "version": "0.43.0",
       "dependencies": {
         "@codemirror/autocomplete": "^6.4.0",
         "@codemirror/commands": "^6.2.0",
@@ -20781,7 +20781,7 @@
         "@lezer/lr": "^1.3.1",
         "@nexucis/fuzzy": "^0.4.1",
         "@nexucis/kvsearch": "^0.8.1",
-        "@prometheus-io/codemirror-promql": "0.43.0-rc.1",
+        "@prometheus-io/codemirror-promql": "0.43.0",
         "bootstrap": "^4.6.2",
         "css.escape": "^1.5.1",
         "downshift": "^7.2.0",
@@ -23417,7 +23417,7 @@
         "@lezer/lr": "^1.3.1",
         "@nexucis/fuzzy": "^0.4.1",
         "@nexucis/kvsearch": "^0.8.1",
-        "@prometheus-io/codemirror-promql": "0.43.0-rc.1",
+        "@prometheus-io/codemirror-promql": "0.43.0",
         "@testing-library/react-hooks": "^7.0.2",
         "@types/enzyme": "^3.10.12",
         "@types/flot": "0.0.32",
@@ -23468,7 +23468,7 @@
         "@lezer/common": "^1.0.2",
         "@lezer/highlight": "^1.1.3",
         "@lezer/lr": "^1.3.1",
-        "@prometheus-io/lezer-promql": "0.43.0-rc.1",
+        "@prometheus-io/lezer-promql": "0.43.0",
         "@types/lru-cache": "^5.1.1",
         "isomorphic-fetch": "^3.0.0",
         "lru-cache": "^6.0.0",
diff --git a/web/ui/react-app/package.json b/web/ui/react-app/package.json
index 20f5819bb..c8b115582 100644
--- a/web/ui/react-app/package.json
+++ b/web/ui/react-app/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@prometheus-io/app",
-  "version": "0.43.0-rc.1",
+  "version": "0.43.0",
   "private": true,
   "dependencies": {
     "@codemirror/autocomplete": "^6.4.0",
@@ -19,7 +19,7 @@
     "@lezer/common": "^1.0.2",
     "@nexucis/fuzzy": "^0.4.1",
     "@nexucis/kvsearch": "^0.8.1",
-    "@prometheus-io/codemirror-promql": "0.43.0-rc.1",
+    "@prometheus-io/codemirror-promql": "0.43.0",
     "bootstrap": "^4.6.2",
     "css.escape": "^1.5.1",
     "downshift": "^7.2.0",