diff --git a/codex-rs/core/src/config/mod.rs b/codex-rs/core/src/config/mod.rs
index 3d5f25763..b15465653 100644
--- a/codex-rs/core/src/config/mod.rs
+++ b/codex-rs/core/src/config/mod.rs
@@ -267,6 +267,11 @@ pub struct Config {
     /// Collection of various notices we show the user
     pub notices: Notice,
 
+    /// When `true`, checks for Codex updates on startup and surfaces update prompts.
+    /// Set to `false` only if your Codex updates are centrally managed.
+    /// Defaults to `true`.
+    pub check_for_update_on_startup: bool,
+
     /// When true, disables burst-paste detection for typed input entirely.
     /// All characters are inserted as they are received, and no buffering
     /// or placeholder replacement will occur for fast keypress bursts.
@@ -685,6 +690,11 @@ pub struct ConfigToml {
     #[serde(default)]
     pub features: Option<FeaturesToml>,
 
+    /// When `true`, checks for Codex updates on startup and surfaces update prompts.
+    /// Set to `false` only if your Codex updates are centrally managed.
+    /// Defaults to `true`.
+    pub check_for_update_on_startup: Option<bool>,
+
     /// When true, disables burst-paste detection for typed input entirely.
     /// All characters are inserted as they are received, and no buffering
     /// or placeholder replacement will occur for fast keypress bursts.
@@ -1162,6 +1172,8 @@ impl Config {
             .or(cfg.review_model)
             .unwrap_or_else(default_review_model);
 
+        let check_for_update_on_startup = cfg.check_for_update_on_startup.unwrap_or(true);
+
         let config = Self {
             model,
             review_model,
@@ -1238,6 +1250,7 @@ impl Config {
             active_project,
             windows_wsl_setup_acknowledged: cfg.windows_wsl_setup_acknowledged.unwrap_or(false),
             notices: cfg.notice.unwrap_or_default(),
+            check_for_update_on_startup,
             disable_paste_burst: cfg.disable_paste_burst.unwrap_or(false),
             tui_notifications: cfg
                 .tui
@@ -2992,6 +3005,7 @@ model_verbosity = "high"
                 active_project: ProjectConfig { trust_level: None },
                 windows_wsl_setup_acknowledged: false,
                 notices: Default::default(),
+                check_for_update_on_startup: true,
                 disable_paste_burst: false,
                 tui_notifications: Default::default(),
                 animations: true,
@@ -3064,6 +3078,7 @@ model_verbosity = "high"
             active_project: ProjectConfig { trust_level: None },
             windows_wsl_setup_acknowledged: false,
             notices: Default::default(),
+            check_for_update_on_startup: true,
             disable_paste_burst: false,
             tui_notifications: Default::default(),
             animations: true,
@@ -3151,6 +3166,7 @@ model_verbosity = "high"
             active_project: ProjectConfig { trust_level: None },
             windows_wsl_setup_acknowledged: false,
             notices: Default::default(),
+            check_for_update_on_startup: true,
             disable_paste_burst: false,
             tui_notifications: Default::default(),
             animations: true,
@@ -3224,6 +3240,7 @@ model_verbosity = "high"
             active_project: ProjectConfig { trust_level: None },
             windows_wsl_setup_acknowledged: false,
             notices: Default::default(),
+            check_for_update_on_startup: true,
             disable_paste_burst: false,
             tui_notifications: Default::default(),
             animations: true,
diff --git a/codex-rs/tui/src/updates.rs b/codex-rs/tui/src/updates.rs
index 0c3f2044e..89fd6f32f 100644
--- a/codex-rs/tui/src/updates.rs
+++ b/codex-rs/tui/src/updates.rs
@@ -15,6 +15,10 @@ use std::path::PathBuf;
 use crate::version::CODEX_CLI_VERSION;
 
 pub fn get_upgrade_version(config: &Config) -> Option<String> {
+    if !config.check_for_update_on_startup {
+        return None;
+    }
+
     let version_file = version_filepath(config);
     let info = read_version_info(&version_file).ok();
 
@@ -141,6 +145,10 @@ fn extract_version_from_latest_tag(latest_tag_name: &str) -> anyhow::Result<Stri
 /// Returns the latest version to show in a popup, if it should be shown.
 /// This respects the user's dismissal choice for the current latest version.
 pub fn get_upgrade_version_for_popup(config: &Config) -> Option<String> {
+    if !config.check_for_update_on_startup {
+        return None;
+    }
+
     let version_file = version_filepath(config);
     let latest = get_upgrade_version(config)?;
     // If the user dismissed this exact version previously, do not show the popup.
diff --git a/docs/config.md b/docs/config.md
index 5051f2706..df4da3b00 100644
--- a/docs/config.md
+++ b/docs/config.md
@@ -977,6 +977,7 @@ Valid values:
 | `tui`                                            | table                                                             | TUI‑specific options.                                                                                                      |
 | `tui.notifications`                              | boolean \| array<string>                                          | Enable desktop notifications in the tui (default: true).                                                                   |
 | `hide_agent_reasoning`                           | boolean                                                           | Hide model reasoning events.                                                                                               |
+| `check_for_update_on_startup`                    | boolean                                                           | Check for Codex updates on startup (default: true). Set to `false` only if updates are centrally managed.                  |
 | `show_raw_agent_reasoning`                       | boolean                                                           | Show raw reasoning (when available).                                                                                       |
 | `model_reasoning_effort`                         | `minimal` \| `low` \| `medium` \| `high`                          | Responses API reasoning effort.                                                                                            |
 | `model_reasoning_summary`                        | `auto` \| `concise` \| `detailed` \| `none`                       | Reasoning summaries.                                                                                                       |