		# Changelog

		_If you are upgrading: please see [`UPGRADING.md`](UPGRADING.md)._

		## [Unreleased][unreleased]

		## [5.0.0] - 2019-03-29

		### Changed
		@@ -30,7 +34,10 @@
		- Update `.npmignore` ([@vweevers](https://github.com/vweevers))
		- Apply common project tweaks ([#580](https://github.com/Level/leveldown/issues/580), [#582](https://github.com/Level/leveldown/issues/582), [`1c90e8f`](https://github.com/Level/leveldown/commit/1c90e8f)) ([@vweevers](https://github.com/vweevers), [@ralphtheninja](https://github.com/ralphtheninja))
		- Introduce `override` and `final` keywords following C++ Core Guidelines ([#600](https://github.com/Level/leveldown/issues/600)) ([@vweevers](https://github.com/vweevers))

		### Added

		- Add `linux-armv7`, `linux-arm64`, `android-armv7` and `android-arm64` prebuilds ([#584](https://github.com/Level/leveldown/issues/584), [#585](https://github.com/Level/leveldown/issues/585), [#587](https://github.com/Level/leveldown/issues/587)) ([@ralphtheninja](https://github.com/ralphtheninja), [@vweevers](https://github.com/vweevers))
		- Add segfault tests ([#514](https://github.com/level/leveldown/issues/514)) ([@vweevers](https://github.com/vweevers))
		- Add `nyc` and `coveralls` for code coverage ([#497](https://github.com/level/leveldown/issues/497)) ([@ralphtheninja](https://github.com/ralphtheninja))
		- Add `nyc` and `coveralls` for code coverage ([#497](https://github.com/level/leveldown/issues/497), [#591](https://github.com/Level/leveldown/issues/591)) ([@ralphtheninja](https://github.com/ralphtheninja), [@vweevers](https://github.com/vweevers))
		- Copy type checks of `approximateSize()` to `compactRange()` ([#517](https://github.com/level/leveldown/issues/517)) ([@vweevers](https://github.com/vweevers))
		@@ -54,2 +61,3 @@ - Document that value may not be `null` or `undefined` ([#511](https://github.com/level/leveldown/issues/511)) ([@vweevers](https://github.com/vweevers))
		- Remove `xcacheSize` and `xmaxOpenFiles` from leak tests ([#569](https://github.com/level/leveldown/issues/569)) ([@ralphtheninja](https://github.com/ralphtheninja))
		- Remove legacy `bindings` dependency ([#583](https://github.com/Level/leveldown/issues/583)) ([@peakji](https://github.com/peakji))

		@@ -59,4 +67,20 @@ ### Fixed
		- Serialize `compactRange()` arguments ([#517](https://github.com/level/leveldown/issues/517)) ([@vweevers](https://github.com/vweevers))
		- Prevent segfault when calling `iterator()` on non-open db ([#514](https://github.com/level/leveldown/issues/514)) ([@vweevers](https://github.com/vweevers))
		- Prevent segfault: when calling `iterator()` on non-open db ([#514](https://github.com/level/leveldown/issues/514)) ([@vweevers](https://github.com/vweevers))
		- Prevent segfault: add `PriorityWorker` to defer closing until `put` is done ([#597](https://github.com/Level/leveldown/issues/597)) ([@vweevers](https://github.com/vweevers))
		- Prevent segfault: keep persistent references to iterators until they are ended ([#597](https://github.com/Level/leveldown/issues/597)) ([@vweevers](https://github.com/vweevers))
		- Gitignore Debug builds of LevelDB and Snappy ([#597](https://github.com/Level/leveldown/issues/597)) ([@vweevers](https://github.com/vweevers))
		- Fix subtests by adding `t.plan()` ([#594](https://github.com/Level/leveldown/issues/594)) ([@vweevers](https://github.com/vweevers))

		## [4.0.2] - 2019-03-02

		### Changed

		- Upgrade `nan` from `~2.10.0` to `~2.12.1` ([#596](https://github.com/Level/leveldown/pull/596)) ([@vweevers](https://github.com/vweevers))
		- Upgrade `prebuild-install` from `^4.0.0` to `~5.2.4` ([#596](https://github.com/Level/leveldown/pull/596)) ([@vweevers](https://github.com/vweevers))
		- Upgrade `prebuild` devDependency from `^7.0.0` to `^8.1.2` ([#596](https://github.com/Level/leveldown/pull/596)) ([@vweevers](https://github.com/vweevers))

		### Added

		- Add Node.js 11 to Travis and AppVeyor ([#596](https://github.com/Level/leveldown/pull/596)) ([@vweevers](https://github.com/vweevers))

		## [4.0.1] - 2018-05-22
		@@ -888,4 +912,8 @@

		[unreleased]: https://github.com/level/leveldown/compare/v4.0.1...HEAD
		[unreleased]: https://github.com/level/leveldown/compare/v5.0.0...HEAD

		[5.0.0]: https://github.com/level/leveldown/compare/v4.0.2...v5.0.0

		[4.0.2]: https://github.com/level/leveldown/compare/v4.0.1...v4.0.2

		[4.0.1]: https://github.com/level/leveldown/compare/v4.0.0...v4.0.1
		@@ -892,0 +920,0 @@

CONTRIBUTORS.md

		@@ -7,4 +7,4 @@ # Contributors
		\| Rod Vagg \| [@rvagg](https://github.com/rvagg) \| [@rvagg@twitter](https://twitter.com/rvagg) \|
		\| Vincent Weevers \| [@vweevers](https://github.com/vweevers) \| [@vweevers@twitter](https://twitter.com/vweevers) \|
		\| David Björklund \| [@kesla](https://github.com/kesla) \| [@david_bjorklund@twitter](https://twitter.com/david_bjorklund) \|
		\| Vincent Weevers \| [@vweevers](https://github.com/vweevers) \| [@vweevers@twitter](https://twitter.com/vweevers) \|
		\| Julian Gruber \| [@juliangruber](https://github.com/juliangruber) \| [@juliangruber@twitter](https://twitter.com/juliangruber) \|
		@@ -11,0 +11,0 @@ \| Yichao 'Peak' Ji \| [@peakji](https://github.com/peakji) \| \|

package.json

		{
		"name": "leveldown",
		"version": "5.0.0-2",
		"version": "5.0.0",
		"description": "A low-level Node.js LevelDB binding",
		@@ -10,2 +10,3 @@ "license": "MIT",
		"test": "standard && hallmark && nyc tape test/*-test.js",
		"test-gc": "npx -n=--expose-gc tape test/{cleanup,iterator-gc}*-test.js",
		"coverage": "nyc report --reporter=text-lcov \| coveralls",
		@@ -18,3 +19,7 @@ "rebuild": "node-gyp rebuild",
		"prepublishOnly": "npm run dependency-check",
		"prebuildify-cross-armv7": "prebuildify-cross --platform=linux --arch=arm --arm-version=7 -- -t 8.14.0 --napi --strip"
		"prebuild-arm": "npm run prebuild-linux-armv7 && npm run prebuild-linux-arm64 && npm run prebuild-android-armv7 && npm run prebuild-android-arm64",
		"prebuild-linux-armv7": "IMAGE=linux-armv7 ./scripts/cross-compile",
		"prebuild-linux-arm64": "IMAGE=linux-arm64 ./scripts/cross-compile",
		"prebuild-android-armv7": "IMAGE=android-armv7 ./scripts/cross-compile",
		"prebuild-android-arm64": "IMAGE=android-arm64 ./scripts/cross-compile"
		},
		@@ -39,7 +44,6 @@ "dependencies": {
		"node-gyp": "^3.8.0",
		"nyc": "^12.0.2",
		"nyc": "^13.2.0",
		"optimist": "~0.6.1",
		"prebuildify": "prebuild/prebuildify#override-platform",
		"prebuildify-ci": "^1.0.4",
		"prebuildify-cross": "ralphtheninja/prebuildify-cross#TARGET_PLATFORM",
		"readfiletree": "~0.0.1",
		@@ -49,3 +53,3 @@ "rimraf": "^2.6.1",
		"standard": "^12.0.0",
		"tape": "^4.5.1",
		"tape": "^4.10.0",
		"tempy": "^0.2.1",
		@@ -52,0 +56,0 @@ "uuid": "^3.2.1"

README.md

		@@ -42,3 +42,3 @@ # leveldown

		The `leveldown` npm package ships with prebuilt binaries for popular 64-bit platforms and is known to work on:
		The `leveldown` npm package ships with prebuilt binaries for popular 64-bit platforms as well as ARM and Android and is known to work on:

		@@ -51,3 +51,3 @@ - Linux (including ARM platforms such as Raspberry Pi _and Kindle!_)

		When installing `leveldown`, [`node-gyp-build`](https://github.com/mafintosh/node-gyp-build) will check if a compatible binary exists and fallback to a compile step if it doesn't. In that case you'll need a [valid `node-gyp` installation](https://github.com/nodejs/node-gyp#installation).
		When installing `leveldown`, [`node-gyp-build`](https://github.com/prebuild/node-gyp-build) will check if a compatible binary exists and fallback to a compile step if it doesn't. In that case you'll need a [valid `node-gyp` installation](https://github.com/nodejs/node-gyp#installation).

		@@ -58,2 +58,4 @@ If you don't want to use the prebuilt binary for the platform you are installing on, specify the `--build-from-source` flag when you install. If you are working on `leveldown` itself and want to re-compile the C++ code it's enough to do `npm install`.

		If you are upgrading: please see [`UPGRADING.md`](UPGRADING.md).

		- <a href="#ctor"><code><b>leveldown()</b></code></a>
		@@ -60,0 +62,0 @@ - <a href="#leveldown_open"><code>db.<b>open()</b></code></a>

UPGRADING.md

		@@ -7,4 +7,2 @@ # Upgrade Guide

		_Currently available as prerelease: `npm i leveldown@next`._

		This is a rewrite to N-API - which is a huge milestone, achieved without an impact on write performance - and an upgrade to `abstract-leveldown` v6, which solves long-standing issues around serialization and type support.
		@@ -16,7 +14,7 @@

		Because N-API has an experimental status in node 6 and early 8.x releases, support of node 6 has been dropped and the minimum node version for `leveldown` is now 8.6.0.
		Because N-API has an experimental status in node 6 and early 8.x releases, support of node 6 has been dropped and the minimum node version for `leveldown` is now 8.6.0. Conversely, for node >= 12, `leveldown@5` is the minimum version.

		### Prebuilt binaries are now shipped in npm package

		Previously, they were downloaded from GitHub by an npm `postinstall` script.
		Previously, they were downloaded from GitHub by an npm `postinstall` script. In addition, `leveldown` now includes prebuilt binaries for Linux ARMv7, Linux ARM64, Android ARMv7 and Android ARM64. The latter target node core (rather than the formerly needed [`nodejs-mobile`](https://github.com/janeasystems/nodejs-mobile) fork).

		@@ -49,2 +47,18 @@ ### Range options are now serialized

		### Various segmentation faults have been fixed

		It is now safe to call `db.close()` before `db.put()` completes, to call `db.iterator()` on a non-open db and to call `db.close()` having created many iterators regardless of their state (idle, nexting, ending or ended). To achieve this, `leveldown` waits for pending operations before closing:

		```js
		db.put('key', 'value', function (err) {
		console.log('this happens first')
		})

		db.close(function (err) {
		console.log('this happens second')
		})
		```

		A future release will do the same for other operations like `get` and `batch`.

		## v4
		@@ -51,0 +65,0 @@

binding.cc