espup reports 0.18.0 is available, even though it's not

Assessment

Research direction

Description

Bug description

The instructions say to run cargo install espup --locked to install, which will build the latest available version. That is currently 0.17.1. Actually running espup reports there is a v0.18.0 available.

To Reproduce

Steps to reproduce the behavior:

1. Run cargo install espup --locked according to the documentation
2. Run espup install

Expected behavior

The latest version should be installed, and the actual command shouldn't say to install a version that doesn't exist.

Screenshots

Environment

• OS: macOs 26.5.2 (25F84)
• espup version: 0.17.1

Getting set up

First steps

1. Read the whole issue, then the project's contributing guide.
2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
3. Fork the repository and make your change on a branch.
4. Open a pull request that references the issue number.

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