diff --git a/CHANGELOG.md b/CHANGELOG.md
index 70c2446..26d6b7d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,17 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [0.6.0] - 2026-03-01
+
+### Added
+- Periodic update check: on startup, if `update_check_interval_hours` have elapsed since
+  the last check, tmuxido fetches the latest release tag from the Gitea API and prints a
+  notice when a newer version is available (silent on network failure or no update found)
+- New `update_check` module (`src/update_check.rs`) with injected fetcher for testability
+- `update_check_interval_hours` config field (default 24, set to 0 to disable)
+- Cache file `~/.cache/tmuxido/update_check.json` tracks last-checked timestamp and
+  latest known version across runs
+
 ## [0.5.2] - 2026-03-01
 
 ### Added
diff --git a/Cargo.lock b/Cargo.lock
index ea73ee6..76442d2 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -864,7 +864,7 @@ dependencies = [
 
 [[package]]
 name = "tmuxido"
-version = "0.5.2"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index 5f070e2..1d96e40 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "tmuxido"
-version = "0.5.2"
+version = "0.6.0"
 edition = "2024"
 
 [dev-dependencies]