0.10 Release

Changes requiring user attention

The C++ broker now enables producer flow control by default. It is controlled via the default-flow-stop-threshold and default-flow-resume-threshold broker configuration parameters. See QPID-2935.
In the C++ broker, when declaring an exchange with an unknown type or canceling a message on an unknown subscription, an exception with code 404 is created. See QPID-2324 and QPID-2326.
The C++ broker now enables QMF version 1 and 2 event broadcasts by default. Previously only QMF version 1 events were enabled.
In the C++ broker, invalid arguments now result in a rejected queue-declare where previously they were ignored. See QPID-3087.
The C++ client now raises an exception if it is issued connection options that it doesn't recognize. Previously it silently ignored them. See QPID-3115.

New features and improvements

QPID-529: The C++ broker now supports priority-ordered message queuing.
QPID-1916: Maven artifacts were published for the Java client.
QPID-2104: The C++ broker has an improved last-value queue implementation.
QPID-2777, QPID-3009: There are new, experimental Perl, Python, and Ruby bindings for the C++ messaging API.
QPID-2921: In the C++ broker, message completion is now an asynchronous operation in more situations.
QPID-2934: C++ QMF agents can now authorize incoming method calls using an authentication ID passed with the corresponding message.
QPID-2935: The C++ broker and client now implement flow control by default. Related: QPID-3081.
QPID-2958: The .NET binding to the C++ client now targets an older version of the .NET Framework, 2.0, for broader compatibility.
QPID-2966: The C++ broker now allows administrators to alter logging levels at runtime.
QPID-3000: The C++ broker now optionally waits a configured time before removing auto-delete queues.
QPID-3002: The C++ broker now generates alerts when queues reach a certain depth.
QPID-3015: The C++ broker now supports creating queues and exchanges via QMF.
QPID-3031: The C++ client now allows setting the SSL certificate name in the connection options.
QPID-3032: You can now use more fine-grained ACLs to control QMF operations on the C++ broker.
QPID-3067: Examples using the old messaging API have been isolated under a common directory.
QPID-3115: Some cases where the C++ and python clients' connection options differed have been reconciled.

Bugs

The 0.10 release saw 101 bugs fixed. Among them were

14 fixes affecting the Java broker, with several critical fixes around memory usage.
18 fixes affecting the Java client
25 fixes affecting the C++ broker
6 fixes affecting the C++ broker's clustering feature
11 fixes affecting the C++ client

Known issues

QPID-3182: Node bindings not established correctly when address used for producer
*QPID-3214: Deadlock between the failover mutex (in AMQConnection.java) and the current_exception_lock (in AMQSession.java)
*QPID-3216: Deadlock between "_lock" (in AMQSession#DisptcherThread) and "_messageDeliveryLock" (in AMQSession.java)

All though these deadlocks are present in the release, the changes that have known to trigger them were committed post release. Therefore the likely-hood of these deadlocks appearing in the 0.10 release is slim.

Status

28 April: 0.10 generally available
25 April: RC4 voted and approved for 0.10
14 April: RC4 released
11 April: Release delayed to the week of 11 April
4 April: RC3 released
1 April: Release delayed to the week of 4 April
24 March: RC2 released
17 March: RC1 released
3 March: Release branch created
22 February: Alpha released

Issues

Features and improvements	http://bit.ly/flKT21
Open bugs	http://bit.ly/gXkak9
Open unassigned bugs	http://bit.ly/efkQqz
Candidate bugs	http://bit.ly/ifx9lV
Fixed bugs	http://bit.ly/fnwtxE

Distributions

Alpha	http://people.apache.org/~astitcher/dist/0.10-alpha/
Beta	http://people.apache.org/~gsim/qpid-0.10-beta/
RC1	http://people.apache.org/~nsantos/qpid-0.10-rc1/
RC2	http://people.apache.org/~astitcher/dist/qpid-0.10-rc2/
RC3	http://people.apache.org/~rhs/qpid-0.10-rc3/
RC4	http://people.apache.org/~astitcher/dist/qpid-0.10/
GA release	http://www.apache.org/dist/qpid/0.10/

Links

Release branch

http://svn.apache.org/repos/asf/qpid/branches/0.10/
http://svn.apache.org/viewvc/qpid/branches/0.10/

Schedule

16 February

Alpha
Trunk remains open
Feature integration ends
The alpha release tests the release process after the introduction of major features

2 March, 2 weeks later

Beta
Branch for release (trunk remains open)
Release branch commits require approval
Release manager produces outstanding bug report, triages bugs

16 March, 2 weeks later

RC1

23 March, 1 week later

RC2

30 March, 1 week later

RC3
Targeted release date