Merge pull request #65 from ethereumjs/new-release-v300

New release v3.0.0

CHANGELOG.md

@@ -5,6 +5,23 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 (modification: no type change headlines) and this project adheres to 
 [Semantic Versioning](http://semver.org/spec/v2.0.0.html).
 
+## [3.0.0] - 2019-01-03
+
+This release comes along with some major version bump of the underlying ``level``
+database storage backend. If you have the library deeper integrated in one of 
+your projects make sure that the new DB version plays well with the rest of the
+code.
+
+The release also introduces modern ``ES6`` JavaScript for the library (thanks @alextsg)
+switching to ``ES6`` classes and clean inheritance on all the modules.
+
+- Replace ``levelup`` 1.2.1 + ``memdown`` 1.0.0 with ``level-mem`` 3.0.1 and upgrade ``level-ws`` to 1.0.0, PR [#56](https://github.com/ethereumjs/merkle-patricia-tree/pull/56)
+- Support for ``ES6`` classes, PRs [#57](https://github.com/ethereumjs/merkle-patricia-tree/pull/57), [#61](https://github.com/ethereumjs/merkle-patricia-tree/pull/61)
+- Updated ``async`` and ``readable-stream`` dependencies (resulting in smaller browser builds), PR [#60](https://github.com/ethereumjs/merkle-patricia-tree/pull/60)
+- Updated, automated and cleaned up [API documentation](https://github.com/ethereumjs/merkle-patricia-tree/blob/master/docs/index.md) build, PR [#63](https://github.com/ethereumjs/merkle-patricia-tree/pull/63)
+
+[3.0.0]: https://github.com/ethereumjs/merkle-patricia-tree/compare/v2.3.2...v3.0.0
+
 ## [2.3.2] - 2018-09-24
 - Fixed a bug in verify proof if the tree contains an extension node with an embedded branch node, PR [#51](https://github.com/ethereumjs/merkle-patricia-tree/pull/51)
 - Fixed ``_scratch`` 'leak' to global/window, PR [#42](https://github.com/ethereumjs/merkle-patricia-tree/pull/42)

package.json

@@ -1,6 +1,6 @@
 {
   "name": "merkle-patricia-tree",
-  "version": "2.3.2",
+  "version": "3.0.0",
   "description": "This is an implementation of the modified merkle patricia tree as specified in the Ethereum's yellow paper.",
   "main": "index.js",
   "scripts": {