## compareVersions() function
Compares two Medplum semver version strings, ignoring any trailing commit-hash suffix.

**Signature:**

```typescript
export declare function compareVersions(a: MedplumSemver, b: MedplumSemver): number;
```

## Parameters

| Parameter | Type | Description |
| --- | --- | --- |
| a | [MedplumSemver](/content/docs/sdk/core.medplumsemver) | The first version to compare. |
| b | [MedplumSemver](/content/docs/sdk/core.medplumsemver) | The second version to compare. |

**Returns:**

number

A negative number if `a` is older than `b`, a positive number if `a` is newer than `b`, or `0` if they resolve to the same release.