🔖 chore: bump version to 0.6.0 and update CHANGELOG

On startup, if `update_check_interval_hours` have elapsed since the last
check, 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 with injected fetcher for full testability
- Cache at ~/.cache/tmuxido/update_check.json tracks timestamp + version
- `fetch_latest_tag` and `version_compare` promoted to `pub(crate)`
- 6 unit tests covering disabled, interval not elapsed, fetch triggered,
  equal versions, update available, and current-newer edge case

.drone.yml

@@ -76,6 +76,16 @@ steps:
     commands:
       - apk add --no-cache curl jq
       - |
+        # Delete existing release for this tag if present (handles retag scenarios)
+        EXISTING_ID=$(curl -fsSL \
+          -H "Authorization: token $GITEA_TOKEN" \
+          "https://git.cincoeuzebio.com/api/v1/repos/cinco/Tmuxido/releases/tags/$DRONE_TAG" \
+          | jq -r '.id // empty')
+        if [ -n "$EXISTING_ID" ]; then
+          curl -fsSL -X DELETE \
+            -H "Authorization: token $GITEA_TOKEN" \
+            "https://git.cincoeuzebio.com/api/v1/repos/cinco/Tmuxido/releases/$EXISTING_ID"
+        fi
         # Read DRONE_TAG via ENVIRON inside awk to avoid Drone's ${VAR} substitution
         # which would replace ${TAG} with an empty string before the shell runs.
         BODY=$(awk '

CHANGELOG.md

@@ -4,6 +4,32 @@ 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
+- Test for `detect_arch` asserting asset name follows `tmuxido-{arch}-linux` format
+
+## [0.5.1] - 2026-03-01
+
+### Fixed
+- Tmux window creation now targets windows by name instead of numeric index, eliminating
+  "index in use" and "can't find window" errors when `base-index` is not 0
+- Self-update asset name corrected from `x86_64-linux` to `tmuxido-x86_64-linux` to match
+  what CI actually uploads, fixing 404 on `--update`
+- CI release pipeline now deletes any existing release for the tag before recreating,
+  preventing 409 Conflict errors on retagged releases
+
 ## [0.5.0] - 2026-03-01
 
 ### Added

Cargo.lock

@@ -864,7 +864,7 @@ dependencies = [
 
 [[package]]
 name = "tmuxido"
-version = "0.5.0"
+version = "0.6.0"
 dependencies = [
  "anyhow",
  "clap",

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "tmuxido"
-version = "0.5.0"
+version = "0.6.0"
 edition = "2024"
 
 [dev-dependencies]

src/config.rs

@@ -15,6 +15,8 @@ pub struct Config {
     pub cache_enabled: bool,
     #[serde(default = "default_cache_ttl_hours")]
     pub cache_ttl_hours: u64,
+    #[serde(default = "default_update_check_interval_hours")]
+    pub update_check_interval_hours: u64,
     #[serde(default = "default_session_config")]
     pub default_session: SessionConfig,
 }
@@ -31,6 +33,10 @@ fn default_cache_ttl_hours() -> u64 {
     24
 }
 
+fn default_update_check_interval_hours() -> u64 {
+    24
+}
+
 fn default_session_config() -> SessionConfig {
     use crate::session::Window;
 
@@ -109,6 +115,7 @@ impl Config {
                 max_depth,
                 cache_enabled,
                 cache_ttl_hours,
+                update_check_interval_hours: default_update_check_interval_hours(),
                 default_session: SessionConfig { windows },
             };
 
@@ -229,6 +236,7 @@ impl Config {
             max_depth: 5,
             cache_enabled: true,
             cache_ttl_hours: 24,
+            update_check_interval_hours: default_update_check_interval_hours(),
             default_session: default_session_config(),
         }
     }
@@ -245,6 +253,7 @@ mod tests {
         assert_eq!(config.max_depth, 5);
         assert!(config.cache_enabled);
         assert_eq!(config.cache_ttl_hours, 24);
+        assert_eq!(config.update_check_interval_hours, 24);
     }
 
     #[test]

src/lib.rs

@@ -4,6 +4,7 @@ pub mod deps;
 pub mod self_update;
 pub mod session;
 pub mod ui;
+pub mod update_check;
 
 use anyhow::Result;
 use cache::ProjectCache;
@@ -192,6 +193,7 @@ mod tests {
             max_depth: 3,
             cache_enabled,
             cache_ttl_hours: 24,
+            update_check_interval_hours: 24,
             default_session: session::SessionConfig { windows: vec![] },
         }
     }

src/main.rs

@@ -6,6 +6,7 @@ use std::process::{Command, Stdio};
 use tmuxido::config::Config;
 use tmuxido::deps::ensure_dependencies;
 use tmuxido::self_update;
+use tmuxido::update_check;
 use tmuxido::{get_projects, launch_tmux_session, show_cache_status};
 
 #[derive(Parser, Debug)]
@@ -48,6 +49,9 @@ fn main() -> Result<()> {
     // Load config
     let config = Config::load()?;
 
+    // Periodic update check (silent on failure or no update)
+    update_check::check_and_notify(&config);
+
     // Handle cache status command
     if args.cache_status {
         show_cache_status(&config)?;

src/self_update.rs

@@ -20,14 +20,14 @@ pub fn current_version() -> &'static str {
 fn detect_arch() -> Result<&'static str> {
     let arch = std::env::consts::ARCH;
     match arch {
-        "x86_64" => Ok("x86_64-linux"),
-        "aarch64" => Ok("aarch64-linux"),
+        "x86_64" => Ok("tmuxido-x86_64-linux"),
+        "aarch64" => Ok("tmuxido-aarch64-linux"),
         _ => Err(anyhow::anyhow!("Unsupported architecture: {}", arch)),
     }
 }
 
 /// Fetch latest release tag from Gitea API
-fn fetch_latest_tag() -> Result<String> {
+pub(crate) fn fetch_latest_tag() -> Result<String> {
     let url = format!("{}/api/v1/repos/{}/releases?limit=1&page=1", BASE_URL, REPO);
 
     let output = Command::new("curl")
@@ -166,7 +166,7 @@ pub fn self_update() -> Result<()> {
 }
 
 /// Compare two semver versions
-fn version_compare(a: &str, b: &str) -> std::cmp::Ordering {
+pub(crate) fn version_compare(a: &str, b: &str) -> std::cmp::Ordering {
     let parse = |s: &str| {
         s.split('.')
             .filter_map(|n| n.parse::<u32>().ok())
@@ -198,6 +198,19 @@ mod tests {
         assert!(version.contains('.'));
     }
 
+    #[test]
+    fn should_prefix_arch_asset_with_tmuxido() {
+        let arch = detect_arch().expect("should detect supported arch");
+        assert!(
+            arch.starts_with("tmuxido-"),
+            "asset name must start with 'tmuxido-', got: {arch}"
+        );
+        assert!(
+            arch.ends_with("-linux"),
+            "asset name must end with '-linux', got: {arch}"
+        );
+    }
+
     #[test]
     fn should_compare_versions_correctly() {
         assert_eq!(

src/session.rs

@@ -41,7 +41,6 @@ impl SessionConfig {
 pub struct TmuxSession {
     pub(crate) session_name: String,
     project_path: String,
-    base_index: usize,
 }
 
 impl TmuxSession {
@@ -53,34 +52,12 @@ impl TmuxSession {
             .replace('.', "_")
             .replace(' ', "-");
 
-        let base_index = Self::get_base_index();
-
         Self {
             session_name,
             project_path: project_path.display().to_string(),
-            base_index,
         }
     }
 
-    fn get_base_index() -> usize {
-        // Try to get base-index from tmux
-        let output = Command::new("tmux")
-            .args(["show-options", "-gv", "base-index"])
-            .output();
-
-        if let Ok(output) = output
-            && output.status.success()
-        {
-            let index_str = String::from_utf8_lossy(&output.stdout);
-            if let Ok(index) = index_str.trim().parse::<usize>() {
-                return index;
-            }
-        }
-
-        // Default to 0 if we can't determine
-        0
-    }
-
     pub fn create(&self, config: &SessionConfig) -> Result<()> {
         // Check if we're already inside a tmux session
         let inside_tmux = std::env::var("TMUX").is_ok();
@@ -167,25 +144,23 @@ impl TmuxSession {
             .status()
             .context("Failed to create tmux session")?;
 
-        // Create panes for first window if specified
+        let first_target = format!("{}:{}", self.session_name, first_window.name);
+
         if !first_window.panes.is_empty() {
-            self.create_panes(self.base_index, &first_window.panes)?;
+            self.create_panes(&first_target, &first_window.panes)?;
         }
 
-        // Apply layout for first window if specified
         if let Some(layout) = &first_window.layout {
-            self.apply_layout(self.base_index, layout)?;
+            self.apply_layout(&first_target, layout)?;
         }
 
-        // Create additional windows
-        for (index, window) in config.windows.iter().skip(1).enumerate() {
-            let window_index = self.base_index + index + 1;
-
+        // Create additional windows, targeting by session name so tmux auto-assigns the index
+        for window in config.windows.iter().skip(1) {
             Command::new("tmux")
                 .args([
                     "new-window",
                     "-t",
-                    &format!("{}:{}", self.session_name, window_index),
+                    &self.session_name,
                     "-n",
                     &window.name,
                     "-c",
@@ -194,46 +169,44 @@ impl TmuxSession {
                 .status()
                 .with_context(|| format!("Failed to create window: {}", window.name))?;
 
-            // Create panes if specified
+            let target = format!("{}:{}", self.session_name, window.name);
+
             if !window.panes.is_empty() {
-                self.create_panes(window_index, &window.panes)?;
+                self.create_panes(&target, &window.panes)?;
             }
 
-            // Apply layout if specified
             if let Some(layout) = &window.layout {
-                self.apply_layout(window_index, layout)?;
+                self.apply_layout(&target, layout)?;
             }
         }
 
-        // Select the first window
+        // Select the first window by name
         Command::new("tmux")
-            .args([
-                "select-window",
-                "-t",
-                &format!("{}:{}", self.session_name, self.base_index),
-            ])
+            .args(["select-window", "-t", &first_target])
             .status()
             .context("Failed to select first window")?;
 
         Ok(())
     }
 
-    fn create_panes(&self, window_index: usize, panes: &[String]) -> Result<()> {
+    fn create_panes(&self, window_target: &str, panes: &[String]) -> Result<()> {
         for (pane_index, command) in panes.iter().enumerate() {
-            let target = format!("{}:{}", self.session_name, window_index);
-
             // First pane already exists (created with the window), skip split
             if pane_index > 0 {
-                // Create new pane by splitting
                 Command::new("tmux")
-                    .args(["split-window", "-t", &target, "-c", &self.project_path])
+                    .args([
+                        "split-window",
+                        "-t",
+                        window_target,
+                        "-c",
+                        &self.project_path,
+                    ])
                     .status()
                     .context("Failed to split pane")?;
             }
 
-            // Send the command to the pane if it's not empty
             if !command.is_empty() {
-                let pane_target = format!("{}:{}.{}", self.session_name, window_index, pane_index);
+                let pane_target = format!("{}.{}", window_target, pane_index);
                 Command::new("tmux")
                     .args(["send-keys", "-t", &pane_target, command, "Enter"])
                     .status()
@@ -244,14 +217,9 @@ impl TmuxSession {
         Ok(())
     }
 
-    fn apply_layout(&self, window_index: usize, layout: &str) -> Result<()> {
+    fn apply_layout(&self, window_target: &str, layout: &str) -> Result<()> {
         Command::new("tmux")
-            .args([
-                "select-layout",
-                "-t",
-                &format!("{}:{}", self.session_name, window_index),
-                layout,
-            ])
+            .args(["select-layout", "-t", window_target, layout])
             .status()
             .with_context(|| format!("Failed to apply layout: {}", layout))?;
 

src/update_check.rs

@@ -0,0 +1,219 @@
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use std::path::PathBuf;
+use std::time::{SystemTime, UNIX_EPOCH};
+
+use crate::config::Config;
+use crate::self_update;
+
+#[derive(Debug, Default, Serialize, Deserialize)]
+struct UpdateCheckCache {
+    last_checked: u64,
+    latest_version: String,
+}
+
+pub fn check_and_notify(config: &Config) {
+    let cache = load_cache();
+    check_and_notify_internal(
+        config.update_check_interval_hours,
+        cache,
+        &|| self_update::fetch_latest_tag(),
+        &save_cache,
+    );
+}
+
+fn check_and_notify_internal(
+    interval_hours: u64,
+    mut cache: UpdateCheckCache,
+    fetcher: &dyn Fn() -> Result<String>,
+    saver: &dyn Fn(&UpdateCheckCache),
+) -> bool {
+    if interval_hours == 0 {
+        return false;
+    }
+
+    let elapsed = elapsed_hours(cache.last_checked);
+
+    if elapsed >= interval_hours
+        && let Ok(latest) = fetcher()
+    {
+        let latest_clean = latest.trim_start_matches('v').to_string();
+        let now = SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .unwrap_or_default()
+            .as_secs();
+        cache.last_checked = now;
+        cache.latest_version = latest_clean;
+        saver(&cache);
+    }
+
+    let current = self_update::current_version();
+    let latest_clean = cache.latest_version.trim_start_matches('v');
+    if !latest_clean.is_empty()
+        && self_update::version_compare(latest_clean, current) == std::cmp::Ordering::Greater
+    {
+        print_update_notice(current, latest_clean);
+        return true;
+    }
+
+    false
+}
+
+fn print_update_notice(current: &str, latest: &str) {
+    let msg1 = format!("  Update available: {} \u{2192} {}  ", current, latest);
+    let msg2 = "  Run tmuxido --update to install.  ";
+    let w1 = msg1.chars().count();
+    let w2 = msg2.chars().count();
+    let width = w1.max(w2);
+    let border = "\u{2500}".repeat(width);
+    println!("\u{250c}{}\u{2510}", border);
+    println!("\u{2502}{}\u{2502}", pad_to_chars(&msg1, width));
+    println!("\u{2502}{}\u{2502}", pad_to_chars(msg2, width));
+    println!("\u{2514}{}\u{2518}", border);
+}
+
+fn pad_to_chars(s: &str, width: usize) -> String {
+    let char_count = s.chars().count();
+    if char_count >= width {
+        s.to_string()
+    } else {
+        format!("{}{}", s, " ".repeat(width - char_count))
+    }
+}
+
+fn cache_path() -> Result<PathBuf> {
+    let cache_dir = dirs::cache_dir()
+        .ok_or_else(|| anyhow::anyhow!("Could not determine cache directory"))?
+        .join("tmuxido");
+    Ok(cache_dir.join("update_check.json"))
+}
+
+fn load_cache() -> UpdateCheckCache {
+    cache_path()
+        .ok()
+        .and_then(|p| std::fs::read_to_string(p).ok())
+        .and_then(|s| serde_json::from_str(&s).ok())
+        .unwrap_or_default()
+}
+
+fn save_cache(cache: &UpdateCheckCache) {
+    if let Ok(path) = cache_path() {
+        if let Some(parent) = path.parent() {
+            let _ = std::fs::create_dir_all(parent);
+        }
+        if let Ok(json) = serde_json::to_string(cache) {
+            let _ = std::fs::write(path, json);
+        }
+    }
+}
+
+fn elapsed_hours(ts: u64) -> u64 {
+    let now = SystemTime::now()
+        .duration_since(UNIX_EPOCH)
+        .unwrap_or_default()
+        .as_secs();
+    now.saturating_sub(ts) / 3600
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+    use std::cell::RefCell;
+
+    fn make_cache(last_checked: u64, latest_version: &str) -> UpdateCheckCache {
+        UpdateCheckCache {
+            last_checked,
+            latest_version: latest_version.to_string(),
+        }
+    }
+
+    fn now_ts() -> u64 {
+        SystemTime::now()
+            .duration_since(UNIX_EPOCH)
+            .unwrap_or_default()
+            .as_secs()
+    }
+
+    #[test]
+    fn should_not_notify_when_interval_is_zero() {
+        let cache = make_cache(0, "99.0.0");
+        let fetcher_called = RefCell::new(false);
+
+        let result = check_and_notify_internal(
+            0,
+            cache,
+            &|| {
+                *fetcher_called.borrow_mut() = true;
+                Ok("99.0.0".to_string())
+            },
+            &|_| {},
+        );
+
+        assert!(!result);
+        assert!(!fetcher_called.into_inner());
+    }
+
+    #[test]
+    fn should_not_check_when_interval_not_elapsed() {
+        let cache = make_cache(now_ts(), "");
+        let fetcher_called = RefCell::new(false);
+
+        check_and_notify_internal(
+            24,
+            cache,
+            &|| {
+                *fetcher_called.borrow_mut() = true;
+                Ok("99.0.0".to_string())
+            },
+            &|_| {},
+        );
+
+        assert!(!fetcher_called.into_inner());
+    }
+
+    #[test]
+    fn should_check_when_interval_elapsed() {
+        let cache = make_cache(0, "");
+        let fetcher_called = RefCell::new(false);
+
+        check_and_notify_internal(
+            1,
+            cache,
+            &|| {
+                *fetcher_called.borrow_mut() = true;
+                Ok(self_update::current_version().to_string())
+            },
+            &|_| {},
+        );
+
+        assert!(fetcher_called.into_inner());
+    }
+
+    #[test]
+    fn should_not_notify_when_versions_equal() {
+        let current = self_update::current_version();
+        let cache = make_cache(now_ts(), current);
+
+        let result = check_and_notify_internal(24, cache, &|| unreachable!(), &|_| {});
+
+        assert!(!result);
+    }
+
+    #[test]
+    fn should_detect_update_available() {
+        let cache = make_cache(now_ts(), "99.0.0");
+
+        let result = check_and_notify_internal(24, cache, &|| unreachable!(), &|_| {});
+
+        assert!(result);
+    }
+
+    #[test]
+    fn should_not_detect_update_when_current_is_newer() {
+        let cache = make_cache(now_ts(), "0.0.1");
+
+        let result = check_and_notify_internal(24, cache, &|| unreachable!(), &|_| {});
+
+        assert!(!result);
+    }
+}

tests/scan.rs

@@ -10,6 +10,7 @@ fn make_config(max_depth: usize) -> Config {
         max_depth,
         cache_enabled: true,
         cache_ttl_hours: 24,
+        update_check_interval_hours: 24,
         default_session: SessionConfig { windows: vec![] },
     }
 }