Version 4.7.1 is the latest release of BookKeeper. The current stable version is 4.6.2.

You can verify your download by following these procedures and using these KEYS.

If you want to download older, archived releases, they are available in the Apache archive.

Latest release (version 4.7.1)

Release Link Crypto files
Source bookkeeper-4.7.1-src.tar.gz asc, sha1
Binary bookkeeper-server-4.7.1-bin.tar.gz asc, sha1

Latest stable release (version 4.6.2)

Release Link Crypto files
Source bookkeeper-4.6.2-src.tar.gz asc, sha1
Binary bookkeeper-server-4.6.2-bin.tar.gz asc, sha1

Recent releases

Version 4.7.0

Release Link Crypto files
Source bookkeeper-4.7.0-src.tar.gz asc, sha1
Binary bookkeeper-server-4.7.0-bin.tar.gz asc, sha1

Version 4.6.2

Release Link Crypto files
Source bookkeeper-4.6.2-src.tar.gz asc, sha1
Binary bookkeeper-server-4.6.2-bin.tar.gz asc, sha1

Version 4.6.1

Release Link Crypto files
Source bookkeeper-4.6.1-src.tar.gz asc, sha1
Binary bookkeeper-server-4.6.1-bin.tar.gz asc, sha1

Version 4.6.0

Release Link Crypto files
Source bookkeeper-4.6.0-src.tar.gz asc, sha1
Binary bookkeeper-server-4.6.0-bin.tar.gz asc, sha1

Version 4.5.1

Release Link Crypto files
Source bookkeeper-4.5.1-src.tar.gz asc, sha1
Binary bookkeeper-server-4.5.1-bin.tar.gz asc, sha1

Version 4.5.0

Release Link Crypto files
Source bookkeeper-4.5.0-src.tar.gz asc, sha1
Binary bookkeeper-server-4.5.0-bin.tar.gz asc, sha1

Getting Started

Once you’ve downloaded a BookKeeper release, instructions on getting up and running with a standalone cluster that you can run your laptop can be found in Run BookKeeper locally.

If you need to connect to an existing BookKeeper cluster using an officially supported client, see client docs for these languages:

Client Guide API docs
The BookKeeper Client Javadoc
The DistributedLog Library Javadoc

News

19 June, 2018: Release 4.7.1 available

This is the 11th release of Apache BookKeeper!

The 4.7.1 release is a bugfix release which fixes a bunch of issues reported from users of 4.7.0. These fixes include bug fixes around ledger cache and object pooling, performance enhancement avoiding memory copies and such.

See BookKeeper 4.7.1 Release Notes for details.

17 April, 2018: Release 4.7.0 available

This is the 10th release of Apache BookKeeper!

The 4.7.0 release incorporates hundreds of bug fixes, improvements, and features since previous major release, 4.6.0, which was released four months ago. It is a big milestone in Apache BookKeeper community - Yahoo branch is fully merged back to upstream, and Apache Pulsar (incubating) starts using official BookKeeper release for its upcoming 2.0 release.

It is also the first release of Apache DistributedLog after it is merged as sub modules of Apache BookKeeper.

See BookKeeper 4.7.0 Release Notes for details.

9 April, 2018: Release 4.6.2 available

This is the ninth release of BookKeeper as an Apache Top Level Project!

The 4.6.2 release is a bugfix release.

See BookKeeper 4.6.2 Release Notes for details.

30 January, 2018: Release 4.6.1 available

This is the eighth release of BookKeeper as an Apache Top Level Project!

The 4.6.1 release is a bugfix release.

See BookKeeper 4.6.1 Release Notes for details.

27 December, 2017: Release 4.6.0 available

This is the seventh release of BookKeeper as an Apache Top Level Project!

The 4.6.0 release incorporates new fixes, improvements, and features since previous major release 4.5.0.

See BookKeeper 4.6.0 Release Notes for details.

22 November, 2017: Release 4.5.1 available

This is the sixth release of BookKeeper as an Apache Top Level Project!

The 4.5.1 release is a bugfix release.

See BookKeeper 4.5.1 Release Notes for details.

10 August, 2017: Release 4.5.0 available

This is the fifth release of BookKeeper as an Apache Top Level Project!

The 4.5.0 release incorporates hundreds of new fixes, improvements, and features since previous major release, 4.4.0, which was released over a year ago. It is a big milestone in Apache BookKeeper community, converging from three main branches (Salesforce, Twitter and Yahoo).

See BookKeeper 4.5.0 Release Notes for details.

16 May, 2016: release 4.4.0 available

This is the fourth release of BookKeeper as an Apache Top Level Project!

This release contains a total of 94 Jira tickets fixed and brings several bookie reliability and operability improvements, along with a long list of bugfixes.

See BookKeeper 4.4.0 Release Notes for details.

30 Nov, 2015: release 4.3.2 available

This is the third release of BookKeeper as an Apache Top Level Project!

This release fixes some issues in both bookie server and bookkeeper client.

See BookKeeper 4.3.2 Release Notes for details.

27 May, 2015: release 4.3.1 available

This is the second release of BookKeeper as an Apache Top Level Project!

This release fixes some issues in both bookie server and bookkeeper client.

See BookKeeper 4.3.1 Release Notes for details.

16 Jan, 2015: release 4.2.4 available

This is the first release of BookKeeper as an Apache Top Level Project!

This release fixes some critical issues in fencing when the ack quorum and write quorum are different sizes.

See BookKeeper 4.2.4 Release Notes for details.

14 Oct, 2014: release 4.3.0 available

This is the seventh release of BookKeeper as a subproject of Zookeeper.

This release includes a lot of improvements to the bookie on-disk performance, a new statistics framework, and protobuffer protocol support along with numerous bugfixes.

See BookKeeper 4.3.0 Release Notes for details.

27 June, 2013: release 4.2.3 available

This is the sixth release of BookKeeper as a subproject of Zookeeper.

This is a bugfix release for 4.2.2.

Notable fixes and improvements include new utilities to give administrators better visibility of cluster state (BOOKKEEPER-746), improvements to allow for smoother rolling upgrades (BOOKKEEPER-745), fixes to ledger polling to ensure metadata updates aren’t missed (BOOKKEEPER-710 & BOOKKEEPER-747) and shading of protobuf libraries to avoid conflicts when included with other version (BOOKKEEPER-708).

See BookKeeper 4.2.3 Release Notes for details.

9 Oct, 2013: release 4.2.2 available

This is the fifth release of BookKeeper as a subproject of Zookeeper.

This is a bugfix release for 4.2.1. There are some minor API improvements. Notably, it is now possible to check whether a ledger is closed without opening it, and it is now possible to get a list of ledgers available in the cluster.

See BookKeeper 4.2.2 Release Notes for details.

27 Feb, 2013: release 4.2.1 available

This is the fourth release of BookKeeper as a subproject of Zookeeper. This release fixes a major performance bug in release 4.2.0. All users of BookKeeper 4.2.0 should upgrade immediately.

See BookKeeper 4.2.1 Release Notes for details.

18 Jan, 2013: release 4.2.0 available

This is the third release of BookKeeper as a subproject of Zookeeper. See BookKeeper 4.2.0 Release Notes for details.

12 Jun, 2012: release 4.1.0 available

This is the second release of BookKeeper as a subproject of Zookeeper. See BookKeeper 4.1.0 Release Notes for details.

7 Dec, 2011: release 4.0.0 available

This is the first release of BookKeeper as a subproject of Zookeeper. See BookKeeper 4.0.0 Release Notes for details.