Prepare 3.0.0 (#34)

* add upgrade guide

* add changelog

* use proper version range for tape

Author: Lars-Magnus Skog

CHANGELOG.md

@@ -0,0 +1,48 @@
+# Changelog
+
+## [Unreleased]
+
+## [3.0.0] - 2018-05-24
+
+### Added
+* Add node 10 to Travis (@ralphtheninja)
+* Add `standard` (@ralphtheninja)
+* Add `CHANGELOG.md` and `UPGRADING.md` (@ralphtheninja)
+
+### Changed
+* Upgrade `rocksdb` to `^3.0.0` (@ralphtheninja)
+* Upgrade `level-packager` to `^3.0.0` (@ralphtheninja)
+
+### Removed
+* Remove node 4 from Travis (@ralphtheninja)
+
+## [2.0.0] - 2018-04-17
+
+### Added
+* Add Greenkeeper badge (@ralphtheninja)
+* Add node 9 to Travis (@ralphtheninja)
+
+### Changed
+* Upgrade `rocksdb` to `^2.0.0` (@ralphtheninja)
+* Upgrade `level-packager` to `^2.0.0` (@ralphtheninja)
+* Update README (@vweevers)
+
+### Fixed
+* Fix oom problems on linux by limiting cores (@ralphtheninja)
+
+### Removed
+* Remove node 7 from Travis (@ralphtheninja)
+
+## [1.0.1] - 2017-07-01
+
+### Changed
+* Update links in README (@mcollina)
+
+## 1.0.0 - 2017-07-01
+
+**Historical Note** Technically not the first release. Earlier versions were published in 2013.
+
+[Unreleased]: https://github.com/level/level-rocksdb/compare/v3.0.0...HEAD
+[3.0.0]: https://github.com/level/level-rocksdb/compare/v2.0.0...v3.0.0
+[2.0.0]: https://github.com/level/level-rocksdb/compare/v1.0.1...v2.0.0
+[1.0.1]: https://github.com/level/level-rocksdb/compare/v1.0.0...v1.0.1

README.md

@@ -25,6 +25,8 @@ Use this package to avoid having to explicitly install `rocksdb` when you want t
 * [Contributing](#contributing)
 * [License](#license)
 
+**If you are upgrading:** please see [`UPGRADING.md`](UPGRADING.md).
+
 ## Usage
 
 ```js

UPGRADING.md

@@ -0,0 +1,7 @@
+# Upgrade Guide
+
+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).
+
+## v3
+
+Dropped support for node 4. No other breaking changes.

package.json

@@ -28,7 +28,7 @@
   },
   "devDependencies": {
     "standard": "^11.0.1",
-    "tape": "*"
+    "tape": "^4.9.0"
   },
   "repository": {
     "type": "git",