Breaking: upgrade to abstract-level 3 (#112)

Ref: https://github.com/Level/abstract-level/releases/tag/v3.0.0
Category: change

Author: vweevers

UPGRADING.md

@@ -2,6 +2,10 @@
 
 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).
 
+## 3.0.0
+
+This release upgrades to `abstract-level` 3. Please see its [upgrade guide](https://github.com/Level/abstract-level/blob/v3.0.0/UPGRADING.md). Note that `classic-level` already dropped support of Node.js 16. The only relevant breaking change is the removal of `put`, `del` & `batch` events.
+
 ## 2.0.0
 
 This release upgrades to `abstract-level` 2.0.0 which adds [hooks](https://github.com/Level/abstract-level#hooks) and drops callbacks, not-found errors and support of Node.js < 16. Please refer to the [upgrade guide of `abstract-level`](https://github.com/Level/abstract-level/blob/v2.0.0/UPGRADING.md). The only thing to add is that `classic-level` also drops Node.js 16 and Electron < 30, and that the additional methods of `classic-level` like `db.approximateSize()` similarly don't support callbacks anymore.

index.js

@@ -22,7 +22,6 @@ class ClassicLevel extends AbstractLevel {
         utf8: true,
         view: true
       },
-      seek: true,
       createIfMissing: true,
       errorIfExists: true,
       additionalMethods: {

package.json

@@ -27,7 +27,7 @@
     "prebuild-win32-x64": "prebuildify -t 18.20.4 --napi --strip"
   },
   "dependencies": {
-    "abstract-level": "^2.0.0",
+    "abstract-level": "^3.0.1",
     "module-error": "^1.0.1",
     "napi-macros": "^2.2.2",
     "node-gyp-build": "^4.3.0"