CHANGELOG.md

Changelog

5.1.1 - 2021-10-02

Added

• Document new features (#727) (e1ecad9) (Vincent Weevers)

Fixed

• Expose nextTick for API parity with abstract-leveldown (7bc86e4) (Vincent Weevers)
• Set supports.status to true (e2e2c34) (Vincent Weevers)

5.1.0 - 2021-10-01

Changed

• Bump deferred-leveldown from 6.x to 7.x (2226bba) (Vincent Weevers)

Added

• Add db.getMany(keys) (02cf2d3) (Vincent Weevers).

5.0.1 - 2021-06-07

Changed

• Remove use of assert module (#721) (f3e86ae) (Alex Potsides)

5.0.0 - 2021-04-17

If you are upgrading: please see UPGRADING.md.

Changed

• Breaking: modernize syntax and bump standard (Level/community#98) (e19cd54, 762d989) (Vincent Weevers)
• Breaking: remove Batch._levelup property (cfce6bb) (Vincent Weevers).
• Align nextTick behavior with abstract-leveldown (4b35716) (Vincent Weevers).
• Add files to package.json and remove .npmignore (29d8b5d) (Vincent Weevers)
• Replace xtend with Object.assign() (7bfc0d4) (Vincent Weevers)
• Bump deferred-leveldown, level-errors, -iterator-stream and -supports (8b518b1, 1b0cfb8) (Vincent Weevers)
• Refactor promisify() code by using catering module (#700) (Lars-Magnus Skog)

Added

• Support encoding options on chained batch put() and del() (#717, #633) (0765808) (Vincent Weevers)

Removed

• Breaking: drop node 6, 8, IE, Safari 9-11 & stock Android (Level/community#98) (bb1d4da) (Vincent Weevers).
• Remove legacy range options from readme and tests (Level/community#86) (2df2a44) (Vincent Weevers)
• Remove default export (Level/community#87) (3fd21e2) (Vincent Weevers)

4.4.0 - 2020-04-11

Changed

• Increase abstract-leveldown parity (#692) (@vweevers):
  • Add db property to chained batch
  • Remove type checks that are also performed by abstract-leveldown
• Upgrade dependency-check devDependency from ^3.3.0 to ^4.1.0 (71a6aa3) (@vweevers)
• Upgrade airtap devDependency from ^2.0.0 to ^3.0.0 (#687) (@vweevers)

4.3.2 - 2019-10-04

Changed

• Upgrade deferred-leveldown from ~5.2.1 to ~5.3.0 (#682) (@vweevers). This fixes the manifest added in 4.3.0.

Added

• Test manifest integration with deferred-leveldown (#681) (@vweevers)

4.3.1 - 2019-10-03

Fixed

• Fix floating promise in constructor (#680) (@vweevers)

4.3.0 - 2019-09-30

Changed

• Rewrite buster tests as tape tests (#674) (@vweevers)
• Create test suite (#677) (@vweevers)

Added

• Add manifest (Level/community#83) (#678) (@vweevers)
• Add type property for reachdown (Level/community#82) (#678) (@vweevers)

4.2.0 - 2019-09-08

Changed

• Upgrade deferred-leveldown from ~5.1.0 to ~5.2.0 (#669) (@vweevers)
• Upgrade hallmark devDependency from ^0.1.0 to ^2.0.0 (#664, #672) (@vweevers)
• Upgrade standard devDependency from ^12.0.0 to ^14.1.0 (#663, cd3af83) (@vweevers)
• Upgrade memdown devDependency from ^4.0.0 to ^5.0.0 (#668) (@vweevers)

Added

• Add clear() method to delete all entries or a range (#669) (@vweevers)

4.1.0 - 2019-06-28

Many thanks to @MeirionHughes for adding seek() support to memdown, encoding-down, deferred-leveldown and subleveldown. At the time of writing, all but subleveldown have been released. Go forth and seek!

Changed

• Upgrade deferred-leveldown from ~5.0.0 to ~5.1.0 (#657) (@vweevers)
• Upgrade delayed devDependency from ^1.0.1 to ^2.0.0 (#659) (@vweevers)

Added

• Test seek() integration (#661) (@vweevers) *
• Support options passed to open() (#660, #662) (@achingbrain, @vweevers)

4.0.2 - 2019-06-08

Changed

• Replace async devDependency with async-each and run-* (#654) (d9ff554) (@vweevers)
• Upgrade nyc devDependency from ^13.1.0 to ^14.0.0 (#649) (4f8b141) (@vweevers)

Added

• Document need of Promise polyfill for IE (a2e7a49) (@vweevers)

Removed

• Remove unused test-10k-times.sh (#651) (6a033f1) (@MadsAndreasenTechPeople)
• Remove outdated Support section from README.md (956eb0b) (@vweevers)
• Remove references to old wiki in favor of Level/awesome (f534fde) (@vweevers)

Fixed

• Fix Level badge (1a2199f) (@vweevers)
• Remove link to dead website (c8ccb6c) (@vweevers)

4.0.1 - 2019-03-30

Changed

• Upgrade dependencies of benchmarks (#637) (@morolt)
• Upgrade memdown devDependency from ^3.0.0 to ^4.0.0 (#646) (@vweevers)
• Upgrade bl devDependency from ^2.0.0 to ^3.0.0 (#643) (@vweevers)
• Upgrade airtap devDependency from 0.1.0 to ^2.0.0 (#631) (@vweevers)
• Upgrade encoding-down devDependency from ^5.0.0 to ^6.0.0 (#629) (@vweevers)
• Apply common project tweaks (#634, #635, b83add5) (@vweevers)

4.0.0 - 2018-12-22

If you are upgrading: please see UPGRADING.md.

Changed

• Upgrade nyc devDependency from ~12.0.2 to ~13.1.0 (@ralphtheninja)
• Upgrade deferred-leveldown dependency from ~4.0.0 to ~5.0.0 (@vweevers)
• Upgrade concat-stream devDependency from ~1.6.0 to ~2.0.0 (@ralphtheninja)
• Upgrade level-iterator-stream dependency from ~3.0.0 to ~4.0.0 (@ralphtheninja)
• Replace remark-cli with hallmark (#621) (@vweevers)
• Upgrade standard devDependency from ^11.0.0 to ^12.0.0 (@ralphtheninja)
• Add .nyc_output/ to .npmignore (@ralphtheninja)

Removed

• Remove IE10 from airtap (#625) (@ralphtheninja)

3.1.1 - 2018-07-14

Changed

• Upgrade airtap from 0.0.7 to 0.1.0 (@vweevers, @ralphtheninja)
• Upgrade level-iterator-stream from ~2.0.0 to ~3.0.0 (@ralphtheninja)
• Pass options to batch.write() (@ralphtheninja)

Added

• Add nyc and coveralls (@ralphtheninja)

Removed

• Remove node 9 (@ralphtheninja)

Fixed

• Fix issue with airtap --local (@ralphtheninja)
• Call rs.destroy() without using .bind() (@ralphtheninja)

3.1.0 - 2018-06-22

Changed

• Upgrade airtap from 0.0.6 to 0.0.7 (@ralphtheninja)
• Update .npmignore (@ralphtheninja)
• Tweak copyright year for less maintenance (@ralphtheninja)

Added

• Expose db.iterator() (@vweevers)
• Add remark tooling (@vweevers)

Removed

• Remove contributors from package.json (@ralphtheninja)
• Remove copyright headers from code (@ralphtheninja)
• Remove LevelDB and Snappy credits (@vweevers)

Fixed

• Replace remark with remark-cli (@ralphtheninja)

3.0.1 - 2018-05-24

Changed

• Upgrade airtap to 0.0.6 (@ralphtheninja)

Removed

• Remove .jshintrc (@ralphtheninja)
• Remove brfs and use Buffer.from() in favor of fs.readFileSync() (@ralphtheninja)

3.0.0 - 2018-05-23

If you are upgrading: please see UPGRADING.md.

Added

• Add node 10 to Travis (@ralphtheninja)
• Add browser support to test suite (@vweevers)
• Add airtap for browser tests in Sauce Labs (@vweevers)

Changed

• Upgrade memdown to ^3.0.0 (@vweevers)
• Upgrade encoding-down to ^5.0.0 (@ralphtheninja)
• Upgrade deferred-leveldown to ~4.0.0 (@ralphtheninja)
• Upgrade standard to ^11.0.0 (@ralphtheninja)
• Upgrade level-errors to ~2.0.0 (@ralphtheninja)
• Upgrade bl to ^2.0.0 (@ralphtheninja)
• README: tweak api sub sections (@ralphtheninja)

Fixed

• Fix defunct keyEncoding in inject-encoding-test.js (@vweevers)

Removed

• Remove irrelevant leveldown-substitution-test.js (@ralphtheninja)
• Remove node 4 from Travis (@ralphtheninja)
• Remove batch operations defaulting to put (@vweevers)
• Remove compiler toolchain from Travis (@vweevers)

2.0.2 - 2018-02-12

Added

• Add 9 to Travis (@ralphtheninja)

Changed

• Upgrade browserify to 16.0.0 (@ralphtheninja)
• Upgrade leveldown to 3.0.0 (@ralphtheninja)
• Upgrade deferred-leveldown to 3.0.0 (@ralphtheninja)
• README: normalize readme style (@ralphtheninja)
• README: use markdown links instead of <a href></a> (@ralphtheninja)
• Clarify 'must provide db' error message (@adityapurwa)
• Update copyright year to 2018 (@adityapurwa)

Removed

• Remove abstract-leveldown devDependency (@ralphtheninja)

2.0.1 - 2017-11-11

Changed

• README: clarify that options are specific to the underlying store (@ralphtheninja)
• Upgrade abstract-leveldown to 3.0.0 (@ralphtheninja)
• Upgrade encoding-down to 3.0.0 (@ralphtheninja)

Fixed

• Restore support for node 4 (@farskipper)

2.0.0 - 2017-10-10

If you are upgrading: please see UPGRADING.md.

Added

• Add default export (@zixia)
• Test that key and value of queued operation is not serialized (@vweevers)
• Test JSON encoding with stream (@vweevers)
• Add smoke test for levelup and leveldown without encoding-down (@vweevers)

Changed

• Upgrade leveldown (@ralphtheninja)
• README: prefer 'underlying store' over database, backend etc (@vweevers)
• README: update badges (@ralphtheninja)
• README: unquote properties (@vweevers)
• README: clarify what excluding callback means (@vweevers)
• README: 'arbitrary data object' => 'of any type' (@vweevers)
• README: reduce 'supported platforms' section (@vweevers)
• README: rewrite intro and relationship with leveldown (@vweevers)
• README: cleanup (@vweevers)
• README: fix bad async code example (@ralphtheninja)
• Upgrade deferred-leveldown (@ralphtheninja)

Removed

• Remove unstable typings and Typescript tests (@MeirionHughes)

2.0.0-rc3 - 2017-09-15

Changed

• Refactor typings, use abstract-leveldown types (@MeirionHughes)
• Upgrade leveldown (@MeirionHughes)

Fixed

• Correct bad encoding options in tests (@MeirionHughes)

2.0.0-rc2 - 2017-09-11

Added

• README: add node version badge (@ralphtheninja)
• Add Typescript definitions and testing (@MeirionHughes)

Changed

• README: homogenize readme style (@vweevers)
• Upgrade level-errors (@ralphtheninja)
• Optimize Typescript tests (@vweevers)

Removed

• Remove 7 from Travis (@ralphtheninja)

2.0.0-rc1 - 2017-09-01

Added

• Add Promise to the API if callbacks are omitted (@juliangruber)
• Add Greenkeeper badge (@ralphtheninja)
• Add tests for maybeError() calling back synchronously if db is closed (@ralphtheninja)

Changed

• Upgrade deferred-leveldown to 2.0.0 (@ralphtheninja)
• Change levelup constructor to take store as first parameter (@ralphtheninja)
• Switch to use AbstractLevelDOWN#status (@ralphtheninja)
• Upgrade copyright year to 2017 (@ralphtheninja)
• Rename lib/util.js to lib/promisify.js (@ralphtheninja)

Removed

• Remove approximateSize() (@ralphtheninja)
• Remove destroy() (@ralphtheninja)
• Remove repair() (@ralphtheninja)
• Remove getProperty() (@ralphtheninja)
• Remove .errorIfExists (@ralphtheninja)
• Remove .createIfMissing (@ralphtheninja)
• Remove .compression (@ralphtheninja)
• Remove .cacheSize (@ralphtheninja)
• Remove .sync (@ralphtheninja)
• Remove .fillCache (@ralphtheninja)
• Remove optional leveldown (@ralphtheninja)
• Remove unused options parameter from maybeError (@ralphtheninja)
• Remove browser field from package.json (@ralphtheninja)
• Remove 0.12 and 4 from Travis (@juliangruber)
• Remove unused isDefined from lib/util.js (@ralphtheninja)
• Remove encodings (@ralphtheninja)
• Remove dispatchError(), callback is always a function (@ralphtheninja)

Fixed

• Fix problems with zalgo in maybeError() (@ralphtheninja)

1.3.9 - 2017-07-26

Added

• Add standard for linting (@ralphtheninja)
• Add 8 to Travis (@ralphtheninja)

Changed

• Ignore package-lock.json and yarn.lock (@ralphtheninja)
• README: make code examples adhere to standard (@ralphtheninja)
• Upgrade dependencies (@ralphtheninja)

1.3.8 - 2017-05-29

Changed

• Revert previous getLevelDOWN fix (@ralphtheninja)
• Throw more descriptive error if db factory is not a function (@ralphtheninja)

1.3.7 - 2017-05-24

Fixed

• Avoid calling getLevelDOWN if not present (@diasdavid)

1.3.6 - 2017-05-10

Changed

• Pull LevelDOWN loader out to non browserified module (@kemitchell)

1.3.5 - 2017-03-02

Changed

• Explicitly require leveldown/package.json (@PascalTemel)

1.3.4 - 2017-03-02

Added

• Add 7 to Travis (@ralphtheninja)

Removed

• Remove 0.10 and 5 from Travis (@ralphtheninja)

1.3.3 - 2016-10-09

Changed

• README: fix typo (@jamesgrayling)
• README: fix typo (@danielravina)
• README: fix typo (@juliangruber)

1.3.2 - 2016-05-17

Added

• Add node 6 to Travis (@ralphtheninja)

Changed

• Use sudo: false to run tests in containers on Travis (@ralphtheninja)
• Update package.json (@0x00A)
• README: fix typos (@pra85)
• README: changed build status ticker from png to svg (@montyanderson)
• README: link build badge to master branch (@a0viedo)
• Update copyright year to 2016 (@ralphtheninja)
• Rename appromixate-size-test.js to approximate-size-test.js (@ralphtheninja)

Removed

• Remove non supported versions from Travis (@ralphtheninja)

Fixed

• Ensure Travis can compile in case no prebuilt binaries can be found (@ralphtheninja)
• Fix deprecation test (@juliangruber)

1.3.1 - 2015-12-10

Added

• Add node 5 to travis (@ralphtheninja)

Changed

• Upgrade outdated dependencies (@ralphtheninja)
• Test on latest node 2, node 3 (@ralphtheninja)

1.3.0 - 2015-11-12

Changed

• README: fixed small typo (Stephen Sawchuck)
• README: update url to Snappy (@hansott)
• README: add dependency badge (@ralphtheninja)
• Test on all major abi versions (@ralphtheninja)
• Upgrade outdated dependencies (@ralphtheninja)
• Track and expose chained batch ops queue length (@kemitchell)

Fixed

• Dev depend on tap to fix npm@3 warning (@ralphtheninja)

1.2.1 - 2015-06-10

Changed

• Improve error message when trying to require leveldown (@ralphtheninja)

1.2.0 - 2015-06-04

Changed

• Less restrictive version on leveldown (@ralphtheninja)

Fixed

• Handle errors in benchmarks (@juliangruber)

1.1.1 - 2015-05-29

Added

• Add link to level/community (@ralphtheninja)

Changed

• Upgrade leveldown dependency (@juliangruber)

Removed

• Remove compression tests (@juliangruber)

1.1.0 - 2015-05-17

Changed

• Batch operation default to 'put' (@ralphtheninja)

1.0.0 - 2015-05-14

Removed

• Remove return values from dispatchError() and readError(), they are used as voids (@ralphtheninja)

1.0.0-5 - 2015-05-07

Changed

• Target multiple iojs versions, remove notifications (@ralphtheninja)
• Deprecate static functions destroy() and repair() (@juliangruber)

1.0.0-4 - 2015-05-06

Changed

• Deprecate .approximateSize() (@juliangruber)

1.0.0-3 - 2015-05-05

Changed

• Replace tap with tape + faucet (@ralphtheninja)
• Refactor read streams using level-iterator-stream and level-codec (@juliangruber)

1.0.0-2 - 2015-04-30

Changed

• Refactor ltgt encoding (@juliangruber)

Fixed

• Fix readStream *AsBuffer options (@juliangruber)

1.0.0-1 - 2015-04-28

Added

• Add test for valueEncoding 'hex' for createReadStream (@braydonf)

Changed

• Upgrade dependencies (@ralphtheninja)

Fixed

• Fix valueEncoding bug by passing options without array (@braydonf)

1.0.0-0 - 2015-04-28

Added

• Add @jcrugzz as contributor
• Add 0.12 and iojs to Travis (@ralphtheninja)

Changed

• Support values to be null or undefined (@kesla)
• README: explain callback arguments to del (@bewest)
• README: update logo and copyright (@ralphtheninja)
• README: remove docs on createWriteStream() and add note on what happened to it (@jcrugzz)
• README: tweak explanation on why createWriteStream() was removed (@ralphtheninja)
• README: clean up old level-ws reference (@ralphtheninja)
• README: changed options for get to same as put (@RichardLitt)
• README: remove reference to write-stream and iterators (@ralphtheninja)
• Explicit devdep versions (@rvagg)
• Update Travis and package.json scripts (@jcrugzz)
• Added errors to the available namespace when requiring levelup (@braydonf)
• Extract error codes into level-errors module (@ralphtheninja)
• Use level-codec (@juliangruber)
• Refactor iterators using new deferred-leveldown (@juliangruber)

Removed

• Remove 0.8 from Travis (@rvagg)
• Remove references to write-stream in tests (@jcrugzz)
• Remove references to write-stream (@jcrugzz)
• Remove fstream based tests (@jcrugzz)
• Remove copy as it requires write-stream (@jcrugzz)
• Remove unused dependencies (@ralphtheninja)
• Remove encoding option (@juliangruber)
• Remove leveled benchmarks (@juliangruber)

Fixed

• README: fix the leveldb link (@seriousManual)
• Use newer memdown store (@sorribas)
• Check notFound on err (@doowb)
• Fix benchmarks by installing leveldown@^0.10.4 (@juliangruber)
• Fix stream-bench.js (@juliangruber)
• Replace rvagg/node- with level (@ralphtheninja)

0.19.1 - 2016-01-23

Added

• Add 0.12, 1.0, 1.8, 2, 3, 4, 5 to Travis (@ralphtheninja)
• Add [email protected] (@ralphtheninja)

Changed

• Upgrade semver (@ralphtheninja)
• Upgrade tap (@ralphtheninja)
• Update compiler on Travis (@ralphtheninja)
• Fix bustermove version (@ralphtheninja)

Removed

• Remove 0.8 from Travis (@ralphtheninja)

0.19.0 - 2014-08-26

Added

• Add suport for lt, lte, gt, and gte (@dominictarr)
• Add isDefined to util (@dominictarr)

Changed

• Refactor encodings and codec from util to separate file (@dominictarr)
• Decouple codec from levelup parts for allowing arbitrary encoding strategies (@dominictarr)
• Decouple read-stream from encoding and opening stuff (@dominictarr)
• Keep codec on the db as db._codec (@dominictarr)
• Refactor error checks (@dominictarr)
• README: document lt, lte, gt, and gte (@dominictarr)
• README: clarify ltgt (@dominictarr)
• README: unmention bops (@dominictarr)
• README: discourage the use of start and end a bit (@raboof)
• README: document what limit does in reverse mode (@raboof)
• README: use highest/lowest instead of largest/smallest (@raboof)
• Binary encoding in the browser (@calvinmetcalf)
• Document code with comments (@dominictarr)
• Minor style fixes (@rvagg)
• Minor whitespace changes (@rvagg)
• Update nodeico badge (@rvagg)

Fixed

• Fix license (@rvagg)

0.18.6 - 2014-07-26

Changed

• Change from MIT +no-false-attribs License to plain MIT (@andrewrk)
• Upgrade bl dependency (@raynos)

0.18.5 - 2014-06-26

Fixed

• Replace concat-stream with bl, fixes #251 (@rvagg)

0.18.4 - 2014-06-24

Changed

• Reorder dependencies (@juliangruber)
• Upgrade dependencies (@rvagg)

Fixed

• Fix race condition on read stream's self._iterator (@nolanlawson)

0.18.3 - 2014-04-26

Changed

• README: fix formatting (@rvagg)
• README: minor corrections (@guybrush)
• README: fix leveldown method wording (@juliangruber)
• README: clarify start, end and limit options in createReadStream docs (@maxogden)

Removed

• Remove bops and use Buffer instead (@nolanlawson)

0.18.2 - 2013-11-26

Added

• Add DNT configuration (@rvagg)

Changed

• Use readable-stream from user land across all node version (@rvagg)

0.18.1 - 2013-11-20

Changed

• Make chained-batch obey global LevelUP object options (@mcavage)

0.18.0 - 2013-11-18

Changed

• Upgrade to [email protected] (and [email protected] and [email protected]) (@rvagg)

0.17.0 - 2013-10-01

Changed

• Undo factory pattern, use plain prototypal object and expose full prototype (@rvagg)
• Move Batch object to batch.js and expose (@rvagg)
• Use new package, DeferredLevelDOWN to handle all deferred open logic (@rvagg)
• Code cleanup, update deps (xtend) (@rvagg, @juliangruber)

0.16.0 - 2013-09-10

Added

• Add notFound boolean property and status=404 property to NotFoundError (@rvagg)

Changed

• Upgrade to [email protected] which aliases .type and .name properties (@rvagg)
• ReadStream gracefully handles multiple destroy() calls (@mcollina)

0.15.0 - 2013-08-26

Added

• Add @substack as contributor

Changed

• New ReadStream: upgrade to streams2, remove all state-management cruft, remove fstream support (@substack)
• Upgrade LevelDOWN dependency to ~0.8.0 with Iterator lt/lte/gt/gte support and NAN as a dependency (@rvagg)

0.14.0 - 2013-08-19

Changed

• Encodings overhaul, allow custom encoders/decoders for keyEncoding or valueEncoding (@dominictarr)

0.13.0 - 2013-08-11

Changed

• Upgrade LevelDOWN dependency version ~0.7.0 for Node 0.8->0.11 compatibility (@rvagg)

0.12.0 - 2013-07-25

Changed

• Upgrade LevelDOWN dependency version ~0.6.2 (@rvagg)

0.11.0 - 2013-07-17

Added

• Add @pgte as contributor

Changed

• Switch from direct Buffer access to bops for better browser compatibility (@juliangruber)
• WriteStream#end accepts data argument (@pgte)

Removed

• Remove all Function#bind calls for better browser compatibility (@juliangruber)

0.10.0 - 2013-06-14

Changed

• Upgrade to [email protected] which upgrades to [email protected], some important bugfixes: https://groups.google.com/forum/#!topic/leveldb/vS1JvmGlp4E (@rvagg)

0.9.0 - 2013-05-21

Changed

• Use [email protected], see https://github.com/level/leveldown/blob/master/CHANGELOG.md for details (@rvagg)
• Race-condition(ish) fixed in ReadStream--createReadStream() does not start immediately and therefore allowed put()s to happen before the stream starts (@dominictarr)
• ReadStream doesn't emit "ready" event (@dominictarr)
• Allow separate encodings per operation in db.batch() (@juliangruber)
• Allow separate encodings per write() in WriteStream (@juliangruber)
• WriteStream supports "type" option ("put" [default] or "del") on constructor and individual write()s (@mcollina)
• Expose LevelDOWN (or LevelDOWN substitute) as db property on LevelUP instance (e.g. db.db.approximateSize()) (@rvagg)
• Chained batch exposed from LevelDOWN, invoked with argument-less db.batch() (@juliangruber, @rvagg)
• Significantly improve ReadStream performance by replacing .bind() and .apply() (@mcollina, @kesla)
• Better Browserify support (@rvagg, @juliangruber, @maxogden, etc.)
• Deprecate secondary LevelDB-specific operations on LevelUP, prefer direct LevelDOWN access (approximateSize(), repair(), destroy(), getProperty()--new in [email protected]) (@rvagg)

Removed

• Remove "leveldown" from dependencies (see http://r.va.gg/2013/05/levelup-v0.9-some-major-changes.html) (@rvagg)

0.8.0 - 2013-04-17

Changed

• More comprehensive argument checking, will now report back directly or throw if there is a problem rather than on nextTick (@rvagg)
• Expose .options property on LevelUP instances. (@rvagg)
• Further clarify 'encoding' -> 'valueEncoding' shift. db.options.valueEncoding is now authoritative even if user used 'encoding' on initialisation. (@rvagg)
• level package now published to npm that bundles LevelUP and LevelDOWN and exposes LevelUP directly; for planned shift to detaching LevelDOWN as a direct-dependency of LevelUP. (@rvagg)

0.7.0 - 2013-04-08

Added

• Add windows support in [email protected] (@rvagg)
• Add 'db' option on constructor to replace LevelDOWN (@rvagg)
• Add repair() and destroy() aliases for LevelDOWN implementations (@rvagg)

Changed

• Improved ReadStream reverse=true start key handling (@kesla)
• ReadStream empty start and end keys ignored rather than segfault (@kesla)
• 'encoding' option now an alias for valueEncoding only, keyEncoding defaults to 'utf8' and must be changed explicitly (@rvagg)

Fixed

• Fix early close emit in WriteStream (@rvagg)

0.6.2 - 2013-03-04

Changed

• Use xtend package instead of internal util._extend (@ralphtheninja)
• Internal cleanup of callback argument detection (@ralphtheninja)
• Move deferred-open-operations into an internal this._db wrapper rather than make them call public .get()/.put() etc. for a second time (@dominictarr)

0.6.1 - 2013-03-01

Changed

• Internal code cleanup and refactoring (@ralphtheninja)

Fixed

• Fix multiple iterator.end() calls in ReadStreams throwing errors, destroy() called while read/next is in progress #82 #83 #84 (@rvagg)

0.6.0 - 2013-02-25

Changed

• Rename ReadStream, KeyStream and ValueStream to createReadStream, createKeyStream and createValueStream (@rvagg)
• Complete transition to LevelDOWN for the LevelDB binding. No native code left in LevelUP (@rvagg)
  • LevelDOWN now keeps its own ChangeLog at: https://github.com/level/leveldown/blob/master/CHANGELOG.md
  • [email protected] and [email protected] are included in [email protected]

0.6.0-rc1 - 2013-02-24

Changed

• Refactor and simplify db state code (@ralphtheninja)
• Extract all binding code to leveldown project (@rvagg)
• Depend on [email protected] (@rvagg)
• Simplify callback signature by removing extra, undocumented properties from some callbacks (@rvagg, @dominictarr)

0.5.4 - 2013-02-15

Changed

• Move encodingOpts from levelup.js to util.js (@ralphtheninja)
• Allow one next() at a time, improve end() handling (@rvagg)
• Use explicit namespaces in C++ (@rvagg)

Removed

• Remove CloseError (@ralphtheninja)
• Remove .useBatch in copy() (@ralphtheninja)
• Ensure iterator end and next don't conflict (@rvagg)

Fixed

• Fix put/batch bug in WriteStream#_process() (@ralphtheninja)
• Fix memory leak, Persistent<Function> callback not Dispose()d for readStream() (@rvagg)

0.5.3 - 2013-01-28

Changed

• Disable all sqlite3 benchmarks (@ralphtheninja)
• Put LevelUP() into closure (@ralphtheninja)
• Swap bufferstream dependency for simple-bufferstream (@rvagg)
• Make location a read-only property on db object (@rvagg)

0.5.3-1 - 2013-02-05

Changed

• Non shrinkwrapped release @rvagg

0.5.2 - 2013-01-23

Fixed

• Fix incorrect scope in approximateSize function (@sandfox)

0.5.1 - 2013-01-10

Changed

• Version bump (@rvagg)

0.5.0 - 2013-01-08

Added

• Add support for setting size of LRU-cache (@kesla)

Changed

• Use util.inherits() from node core (@ralphtheninja)
• Adjust copyright & contributors (@rvagg)

Fixed

• Idempotent open and close, and emit _state as events (@dominictarr)
• Check that UINT32_OPTION_VALUE is a Uint32 (@kesla)

0.5.0-1 - 2013-01-09

Changed

• Change createIfMissing option default to true (@rvagg)
• Use util._extend instead of local variant (@rvagg)

0.4.4 - 2013-01-01

Fixed

• Set .maxListeners to Infinity to prevent warnings when using deferred open (@juliangruber)

0.4.3 - 2012-12-30

Added

• Add @kesla to contributors list (@rvagg)
• Add approximateSize() (@kesla)

0.4.2 - 2012-12-30

Added

• Add @ralphtheninja to contributors list (@rvagg)

Fixed

• Use setImmediate instead of process.nextTick for [email protected] compatibility (@rvagg)

0.4.1 - 2012-12-19

Removed

• Remove useBatch option on writeStream() @rvagg

0.4.0 - 2012-12-17

Added

• Add SQLite3 to test suite (@rvagg)
• Add basic get() benchmarks (@rvagg)
• Add compress boolean on open() (@rvagg)

Changed

• Speed up batch() and allow non-Strings to C++ (@rvagg)
• Improved compression test (@rvagg)
• Return Strings not Buffers from C++ when possible (@rvagg)
• Optimised encoders and decoders (@rvagg)
• Revamped benchmark suite (@rvagg)
• Allow JS Strings through to native layer (@rvagg)
• Cleaner build for osx (@rvagg)
• Upgrade to [email protected] (@rvagg)

Removed

• Remove old and unused util functions (@rvagg)
• Remove compile warnings on osx (@rvagg)
• Remove compile warnings for solaris (@rvagg)

Fixed

• Fix batch() benchmarks (@rvagg)

0.3.3 - 2012-12-14

Added

• Add compression tests (@rvagg)

Fixed

• Fix Snappy compression (@rvagg)

0.3.2 - 2012-11-24

Added

• Add more functional tests (@rvagg)
• Add snapshot tests (@rvagg)

Changed

• Emit raw keys and values in events (@rvagg)

0.3.1 - 2012-11-21

Added

• Add benchmark suite (@rvagg)
• Add limit option to ReadStream (@rvagg)

0.3.0 - 2012-11-18

Added

• Add .status property to keep track of db status (@raynos, @rvagg)
• Add CloseError error type (@raynos, @rvagg)
• Add tests for deferred operations (@rvagg)

Changed

• Document events (@rvagg)
• Run the encoding on start and end in case your keys are JSON encoded (@raynos)
• First attempt at deferring operations. All operations that used to throw when called before open are now called once the database is open (@raynos, @rvagg)

Fixed

• If status is 'closing', call callback after db is closed (@raynos, @rvagg)

0.2.1 - 2012-10-28

Fixed

• Fix db GC when using multiple ReadStream (@rvagg)

0.2.0 - 2012-10-28

Added

• Add support for Solaris/SunOS/SmartOS (@rvagg)

0.1.2 - 2012-10-26

Fixed

• Fix bug with falsey values on start and end, fixes #8 (@rvagg)

0.1.1 - 2012-10-17

Fixed

• Fix bug with sticky options, fixes #6 (@rvagg)

0.1.0 - 2012-09-28

Added

• Add Travis setup (@rvagg)
• Add KeyStream() and ValueStream() (@rvagg)

0.0.5 - 2012-09-22

Changed

• Native layer errors if key or value are undefined or null (@rvagg)

0.0.5-1 - 2012-09-28

Added

• Add description to package.json (@rvagg)

0.0.4 - 2012-09-12

Fixed

• Fix bug with options not being passed to readable streams (@rvagg)

0.0.3 - 2012-09-09

Added

• Add reverse functionality to readable streams (@rvagg)

0.0.2 - 2012-09-07

Changed

• Do not encourage using async throw in documentation (@rvagg)
• Return to classical prototypal inheritance (@rvagg)

Fixed

• Fix typos in documentation (@rvagg)

0.0.2-1 - 2012-09-07

Added

• Add repository information to package.json (@rvagg)

0.0.1 - 2012-08-31

Added

• Add start and end options for readable streams (@rvagg)
• Add 'json' encoding (@rvagg)
• Add .nextLocation(), .checkBinaryTestData(), .loadBinaryTestData(), .openTestDatabase(), .commonTearDown(), .commonSetup() and .binaryTestDataMD5Sum to test/common.js (@rvagg)
• Add tests for .readStream() with start being midway key (@rvagg)
• Add keywords to package.json (@rvagg)

Changed

• New API. Database constructor now accepts callback (@rvagg)
• Update documentation for new API (@rvagg)

Removed

• Remove usage of global in tests (@rvagg)

0.0.0 - 2012-08-17

🌱 Initial release.

0.0.0-1 - 2012-08-18

Added

• Add bufferstream dependency (@rvagg)

Changed

• Document ReadStream and WriteStream (@rvagg)
• Start using ~ in dependencies (@rvagg)

Removed

• Remove unused inherits variable (@rvagg)