Qpid Proton 0.23.0 发布了，更新内容如下：
New features and improvements
PROTON-636 - remove confusing default for session capacity and allow disabling it
PROTON-1823 - [c] make it easier to send a message
PROTON-1826 - [go] Add Messge.String() method for human-readable message printing
Bugs fixed
PROTON-1514 - [proton-c] When last frame of multi-frame transfer has settled=true, Proton still considers delivery as unsettled
PROTON-1809 - [python, ruby] Unable to receive messages when max-frame-size is set to more than 2^20
PROTON-1815 - [C++ binding] Complex types: List containing array of std::nullptr_t fails compilation
PROTON-1818 - [C++ binding] Complex types: list of nulls causes SIGABRT
PROTON-1820 - [ruby] Container#schedule does not work if called from handler
PROTON-1821 - link name is not correctly set from sender or receiver options
PROTON-1822 - Running C/C++ Example tests under python 3 produces warnings
PROTON-1825 - PyPI package python-qpid-proton doesn't pip install on MacOS X or FreeBSD
PROTON-1830 - [ruby] sporadic failure of ruby tests
PROTON-1832 - [c] duplicate link names cause invalid read in pn_transport_unbind_handles
PROTON-1841 - [cpp] add missing ostream<< and to_string for proton::message
PROTON-1844 - Windows proactor memory corruption on cleanup
PROTON-1845 - [c] Treat attach received after detach as implying new link
PROTON-1847 - container:schedule used from an external thread can stop container::run loop processing other events
详情见发布公告。
下载地址：http://qpid.apache.org/download.html