> ## Documentation Index
> Fetch the complete documentation index at: https://docs.jolter.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Selectors

> Version selector grammar for runtimes, built-in tools, plugin tools, and plugins.

Selectors describe the versions Jolter may resolve.

## Supported forms

| Selector   | Meaning                                   |
| ---------- | ----------------------------------------- |
| `24`       | Highest stable `24.*.*` release           |
| `24.x`     | Same major-line intent as `24`            |
| `24.5`     | Highest stable `24.5.*` release           |
| `24.5.x`   | Same minor-line intent as `24.5`          |
| `24.5.0`   | Exact semantic version                    |
| `x` or `*` | Any stable version                        |
| `latest`   | Highest stable release from the provider  |
| `lts`      | Highest current LTS release, Node.js only |

Leading `v` is accepted in direct requests and normalized.

## Unsupported forms

Jolter does not support:

```text theme={null}
>=20
^20
~20
20 || 22
20 - 24
24.0.0-beta.1
24.5.0.1
```

Whitespace, embedded `@`, ranges, unions, prerelease syntax, and more than three numeric components are rejected.

## Runtime support

| Runtime | Numeric | `latest` | `lts` |
| ------- | ------- | -------- | ----- |
| Node.js | Yes     | Yes      | Yes   |
| Bun     | Yes     | Yes      | No    |
| Deno    | Yes     | Yes      | No    |

## Tool support

Built-in tools and plugin tools support numeric selectors, wildcards, and `latest`. They do not support `lts`.

```bash theme={null}
jolter use pnpm@10
jolter use yarn@4.x
jolter use eslint@8
```

## Corepack-style hashes

Exact built-in tool versions can include an archive hash:

```text theme={null}
pnpm@10.12.1+sha224.<56-hex-characters>
```

Supported algorithms:

```text theme={null}
sha1
sha224
sha256
sha384
sha512
```

Hashes are accepted only with exact stable semantic versions. Jolter verifies them in addition to npm registry integrity.

## Stability policy

Broad selectors can move when provider metadata changes. Use exact versions for:

* release jobs;
* pinned build images;
* regulated reproducibility;
* offline cache preparation;
* incident rollbacks.

Use major or minor selectors for normal application development when you want compatible movement.


## Related topics

- [Project pinning](/guides/project-pinning.md)
- [Mental model](/mental-model.md)
- [Runtimes](/guides/runtimes.md)
- [Project plugins](/plugins/project-plugins.md)