diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0419052..d123567 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,20 @@ All notable changes to the Databricks Notebook Studio extension will be document
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.3] - 2026-01-22
+
+### Added
+- **DataFrame Column Selection**: Added column selector dropdown for showing/hiding columns
+  - Dropdown button in DataFrame toolbar with visual active state
+  - Checkbox list to toggle column visibility (show/hide individual columns)
+  - Pin functionality to keep frequently-used columns at the top of the selector list
+  - Search input to filter columns by name in the selector
+  - "Select All" checkbox to quickly show/hide all columns
+  - Reset button to restore all columns to visible state
+  - Pinned columns display with subtle visual highlight
+  - Fixed positioning to prevent clipping in scrollable containers
+  - Column type icons displayed next to each column name
+  
 ## [0.4.2] - 2026-01-22
 
 ### Added
diff --git a/package-lock.json b/package-lock.json
index ca79b87..5dd9fa5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "databricks-notebook-studio",
-  "version": "0.4.2",
+  "version": "0.4.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "databricks-notebook-studio",
-      "version": "0.4.2",
+      "version": "0.4.3",
       "license": "MIT",
       "devDependencies": {
         "@istanbuljs/nyc-config-typescript": "^1.0.2",
diff --git a/package.json b/package.json
index ff02750..3c35772 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "databricks-notebook-studio",
   "displayName": "Databricks Notebook Studio",
   "description": "Visualize Databricks .py notebooks with rich DataFrame display, interactive tables, column sorting/resizing, and multi-profile authentication",
-  "version": "0.4.2",
+  "version": "0.4.3",
   "license": "MIT",
   "type": "commonjs",
   "publisher": "databricks-notebook-studio",