Amazon Q doesn't launch saying failed to update:``

### Checks

- [x] I have searched [github.com/aws/amazon-q-developer-cli/issues](https://github.com/aws/amazon-q-developer-cli/issues?q=) and there are no duplicates of my issue
- [x] I have run `q doctor` in the affected terminal session
- [x] I have run `q restart` and replicated the issue again

### Operating system

macOS 26.1.0 (25B78)

### Expected behaviour

Launching the q app

### Actual behaviour

### Steps to reproduce

_No response_

### Environment

```yaml

[q-details]
version = "1.19.6"
hash = "65cdf611735510560feefcf49f7bd15bf6be56ba"
date = "2025-11-13T18:29:29.544012Z (40d ago)"
variant = "full"

[system-info]
os = "macOS 26.1.0 (25B78)"
chip = "Apple M4 Pro"
total-cores = 14
memory = "48.00 GB"

[environment]
cwd = "/Users/USER"
cli-path = "/Users/USER"
os = "Mac"
shell-path = "/bin/zsh"
shell-version = "5.9"
terminal = "iTerm 2"
install-method = "brew"

[env-vars]
PATH = "/Users/USER/.nvm/versions/node/v24.7.0/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/opt/homebrew/opt/node@18/bin:/Users/USER/.local/bin:/usr/local/bin:/System/Cryptexes/App/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/local/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/bin:/var/run/com.apple.security.cryptexd/codex.system/bootstrap/usr/appleinternal/bin:/opt/pmk/env/global/bin:/Applications/iTerm.app/Contents/Resources/utilities:/Users/USER/Library/Application Support/JetBrains/Toolbox/scripts:/Users/USER/.toolbox/bin"
QTERM_SESSION_ID = "8a800d9ef30e4713975475bd4c911b5d"
Q_SET_PARENT_CHECK = "1"
Q_TERM = "1.19.6"
Q_USING_ZSH_AUTOSUGGESTIONS = "1"
SHELL = "/bin/zsh"
TERM = "xterm-256color"
__CFBundleIdentifier = "com.googlecode.iterm2"
```

Inizia riproducendo il problema con q doctor e q restart nell’ambiente macOS, iTerm e zsh riportato. L’issue non indica alcun file sorgente, test o passaggio per la riproduzione; il lavoro è completato quando l’app Q si avvia senza il messaggio di aggiornamento non riuscito.

Scritto dal modello di indicizzazione a partire dal testo della issue.