## Summary
Replaced `update-notifier` v6 with `simple-update-notifier` v2 to fix
the bundled CLI.
`update-notifier` v6 is ESM-only and spawns a child process (`check.js`)
using `import.meta.url`. When tsup bundles the CLI into a single CJS
file, these file paths become invalid and the update check silently
fails. `simple-update-notifier` is CJS-compatible, checks inline without
spawning, and has an identical API surface.
## Test plan
- ✓ All 79 existing CLI tests pass
- ✓ TypeScript, linting, and formatting checks pass
- ✓ Update check banner still displays with same interval
🤖 Generated with [Claude Code](https://claude.com/claude-code)
<!-- CURSOR_SUMMARY -->
---
> [!NOTE]
> **Low Risk**
> Low risk: swaps the CLI update-check library and tweaks startup flow
to run the check asynchronously; behavior should be equivalent but could
affect when/if the banner prints.
>
> **Overview**
> Fixes the CLI update banner by replacing `update-notifier` with
`simple-update-notifier`, dropping the old dependency (and its types)
and adding the new one.
>
> Updates the CLI entrypoint to use `parseAsync()` and run the update
check via an async `main()` function after argument parsing, and adds a
changeset bumping `@e2b/cli` as a patch release.
>
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
a2ddaeec0b4d0324f388d088916a9fcc7ba17432. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->
---------
Co-authored-by: Claude Haiku 4.5 <noreply@anthropic.com>
Mish Ushakov