Add changelog and finalize upgrade guide for 2.0.0

CHANGELOG.md

@@ -1,5 +1,32 @@
 # Changelog
 
+## [2.0.0] - 2024-01-28
+
+_If you are upgrading, please see [`UPGRADING.md`](UPGRADING.md)._
+
+### Changed
+
+- **Breaking:** remove callbacks in favor of promises ([#50](https://github.com/Level/abstract-level/issues/50)) ([`f97dbae`](https://github.com/Level/abstract-level/commit/f97dbae)) (Vincent Weevers)
+- **Breaking:** use `undefined` instead of error for non-existing entries ([#49](https://github.com/Level/abstract-level/issues/49)) ([`1e08b30`](https://github.com/Level/abstract-level/commit/1e08b30)) (Vincent Weevers)
+- **Breaking:** add hooks and deprecate `batch`, `put` & `del` events ([#45](https://github.com/Level/abstract-level/issues/45), [#53](https://github.com/Level/abstract-level/issues/53)) ([`bcb4192`](https://github.com/Level/abstract-level/commit/bcb4192), [`bee1085`](https://github.com/Level/abstract-level/commit/bee1085)) (Vincent Weevers)
+- **Breaking:** require snapshots to be created synchronously ([#54](https://github.com/Level/abstract-level/issues/54)) ([`d89e68e`](https://github.com/Level/abstract-level/commit/d89e68e)) (Vincent Weevers).
+
+### Added
+
+- Add experimental support of `AbortSignal` ([#55](https://github.com/Level/abstract-level/issues/55), [#59](https://github.com/Level/abstract-level/issues/59)) ([`b075a25`](https://github.com/Level/abstract-level/commit/b075a25), [`e3fba20`](https://github.com/Level/abstract-level/commit/e3fba20)) (Vincent Weevers)
+- Expose path of sublevel ([#78](https://github.com/Level/abstract-level/issues/78)) ([`20974f6`](https://github.com/Level/abstract-level/commit/20974f6)) (Vincent Weevers).
+
+### Removed
+
+- **Breaking:** drop Node.js < 16 ([`9e8f561`](https://github.com/Level/abstract-level/commit/9e8f561)) (Vincent Weevers)
+- **Breaking:** remove deferred chained batch ([#51](https://github.com/Level/abstract-level/issues/51), [#58](https://github.com/Level/abstract-level/issues/58)) ([`fc7be7b`](https://github.com/Level/abstract-level/commit/fc7be7b), [`e119cad`](https://github.com/Level/abstract-level/commit/e119cad)) (Vincent Weevers)
+- **Breaking:** remove `ready` alias of `open` event ([#48](https://github.com/Level/abstract-level/issues/48)) ([`5f7b923`](https://github.com/Level/abstract-level/commit/5f7b923)) (Vincent Weevers)
+- Remove compatibility checks for `levelup` & friends ([#52](https://github.com/Level/abstract-level/issues/52)) ([`def791f`](https://github.com/Level/abstract-level/commit/def791f)) (Vincent Weevers).
+
+### Fixed
+
+- Keep track of iterator end ([#56](https://github.com/Level/abstract-level/issues/56)) ([`9b78443`](https://github.com/Level/abstract-level/commit/9b78443)) (Vincent Weevers).
+
 ## [1.0.4] - 2024-01-20
 
 ### Fixed
@@ -37,6 +64,8 @@
 
 _:seedling: Initial release. If you are upgrading from `abstract-leveldown` please see [`UPGRADING.md`](UPGRADING.md)_
 
+[2.0.0]: https://github.com/Level/abstract-level/releases/tag/v2.0.0
+
 [1.0.4]: https://github.com/Level/abstract-level/releases/tag/v1.0.4
 
 [1.0.3]: https://github.com/Level/abstract-level/releases/tag/v1.0.3

README.md

@@ -1,13 +1,13 @@
 # abstract-level
 
-**Abstract class for a lexicographically sorted key-value database.** The successor to [`abstract-leveldown`](https://github.com/Level/abstract-leveldown) with builtin encodings, sublevels, hooks, events and support of Uint8Array. If you are upgrading please see [`UPGRADING.md`](UPGRADING.md).
+**Abstract class for a lexicographically sorted key-value database.** Provides state, encodings, sublevels, events and hooks. If you are upgrading, please see [`UPGRADING.md`](UPGRADING.md).
 
-> :pushpin: Which module should I use? What happened to `levelup`? Head over to the [FAQ](https://github.com/Level/community#faq).
+> :pushpin: What happened to `levelup`? Head on over to [Frequently Asked Questions](https://github.com/Level/community#faq).
 
 [![level badge][level-badge]](https://github.com/Level/awesome)
 [![npm](https://img.shields.io/npm/v/abstract-level.svg)](https://www.npmjs.com/package/abstract-level)
 [![Node version](https://img.shields.io/node/v/abstract-level.svg)](https://www.npmjs.com/package/abstract-level)
-[![Test](https://img.shields.io/github/actions/workflow/status/Level/abstract-level/test.yml?branch=main&label=test)](https://github.com/Level/abstract-level/actions/workflows/test.yml)
+[![Test](https://img.shields.io/github/actions/workflow/status/Level/abstract-level/test.yml?branch=main\&label=test)](https://github.com/Level/abstract-level/actions/workflows/test.yml)
 [![Coverage](https://img.shields.io/codecov/c/github/Level/abstract-level?label=\&logo=codecov\&logoColor=fff)](https://codecov.io/gh/Level/abstract-level)
 [![Standard](https://img.shields.io/badge/standard-informational?logo=javascript\&logoColor=fff)](https://standardjs.com)
 [![Common Changelog](https://common-changelog.org/badge.svg)](https://common-changelog.org)
@@ -167,7 +167,7 @@
 
 ## Usage
 
-Usage of a typical implementation looks as follows.
+This module exports an abstract class that should not be instantiated by end users. Instead use modules like [`level`](https://github.com/Level/level) that contain a concrete implementation and actual data storage. The purpose of the abstract class is to provide a common interface that looks like this:
 
 ```js
 // Create a database

UPGRADING.md

@@ -6,7 +6,7 @@ This document describes breaking changes and how to upgrade. For a complete list
 
 <details><summary>Click to expand</summary>
 
-- [Upcoming](#upcoming)
+- [2.0.0](#200)
   - [1. Public API](#1-public-api)
     - [1.1. Callbacks have been removed](#11-callbacks-have-been-removed)
     - [1.2. Not found](#12-not-found)
@@ -43,11 +43,9 @@ This document describes breaking changes and how to upgrade. For a complete list
 
 </details>
 
-## Upcoming
+## 2.0.0
 
-_This is a work in progress upgrade guide for the upcoming 2.0.0 release._
-
-This release drops callbacks, not-found errors, support of Node.js < 16, and adds a new feature called [hooks](./README.md#hooks). The guide for this release consists of two sections. One for the public API, relevant to all consumers of `abstract-level` and implementations thereof (`level`, `classic-level`, `memory-level` et cetera) and another for the private API that only implementors should have to read.
+**This release drops callbacks, not-found errors, support of Node.js < 16, and adds a new feature called [hooks](./README.md#hooks). The guide for this release consists of two sections. One for the public API, relevant to all consumers of `abstract-level` and implementations thereof (`level`, `classic-level`, `memory-level` et cetera) and another for the private API that only implementors should have to read.**
 
 If you're upgrading from `levelup`, `abstract-leveldown` or other old modules, it's recommended to first upgrade to `abstract-level` 1.x because that version includes compatibility checks that have since been removed.
 
@@ -103,7 +101,7 @@ if (value === undefined) {
 }
 ```
 
-The same applies to equivalent and older `if (err.notFound)` code in the style of levelup.
+The same applies to equivalent and older `if (err.notFound)` code in the style of `levelup`.
 
 #### 1.3. Not ready
 
@@ -123,7 +121,7 @@ db.once('open', function () {
 })
 ```
 
-Although old code that uses these events would likely be better off using `db.open()` because synchronous events don't mix well with `async/await`. You could instead do:
+Although, old code that uses these events would likely be better off using `db.open()` because synchronous events don't mix well with `async/await`. You could instead do:
 
 ```js
 await db.open({ passive: true })