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vweevers merged 2 commits into from
Apr 20, 2025
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Breaking: upgrade to abstract-level 3 #248

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Breaking: upgrade to abstract-level 3
vweevers Apr 20, 2025
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Don't make people read the same thing twice
vweevers Apr 20, 2025
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12 changes: 12 additions & 0 deletions UPGRADING.md
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This document describes breaking changes and how to upgrade. For a complete list of changes including minor and patch releases, please refer to the [changelog](CHANGELOG.md).

## 10.0.0

This release upgrades to `abstract-level` 3. Please see its [upgrade guide](https://github.com/Level/abstract-level/blob/v3.0.0/UPGRADING.md).

Not mentioned in that guide is the later addition of `db.getSync()`. This new method blocks the event loop but can be significantly faster than `db.get()`:

```js
const value = db.getSync('example')
```

It is only supported in Node.js (via `classic-level`) and not in browsers.

## 9.0.0

This release upgrades to `abstract-level` 2.0.0 which adds [hooks](https://github.com/Level/abstract-level#hooks) and drops callbacks and not-found errors. Please refer to the [upgrade guide of `abstract-level`](https://github.com/Level/abstract-level/blob/v2.0.0/UPGRADING.md) for details. The only thing to add is that this release ends support of Node.js < 18 and Electron < 30.
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6 changes: 3 additions & 3 deletions package.json
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],
"browser": "browser.js",
"dependencies": {
"abstract-level": "^2.0.1",
"browser-level": "^2.0.0",
"classic-level": "^2.0.0"
"abstract-level": "^3.1.0",
"browser-level": "^3.0.0",
"classic-level": "^3.0.0"
},
"devDependencies": {
"@babel/preset-env": "^7.26.9",
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