其实随本次更新的，还有一个被称为OS X 下的 docker 二进制版本（虽然是官方提供，但目前仅供测试用）。而且如果此方法（即是在虚拟机内运行一个被称为boot2docker的超迷你linux发型版，内置docker）可行的话，预感Windows平台下的 docker二进制版本也会很快到来。
对OSX 下docker 二进制版本 即 http://test.docker.io/builds/Darwin/x86_64/docker-0.7.3.tgz 有兴趣的，可以请参见 HW上的讨论。
docker osx build 的 github issue 链接： https://github.com/dotcloud/docker/issues/1616
详细的修正日志来自 GitHub：
0.7.3 (2013-01-02)
Builder
Update ADD to use the image cache, based on a hash of the added content
Add error message for empty Dockerfile
Documentation
Fix outdated link to the "Introduction" on www.docker.io
Update the docs to get wider when the screen does
Add information about needing to install LXC when using raw binaries
Update Fedora documentation to disentangle the docker and docker.io conflict
Add a note about using the new -mtu flag in several GCE zones
Add FrugalWare installation instructions
Add a more complete example of docker run
Fix API documentation for creating and starting Privileged containers
Add missing "name" parameter documentation on "/containers/create"
Add a mention of lxc-checkconfig as a way to check for some of the necessary kernel configuration
Update the 1.8 API documentation with some additions that were added to the docs for 1.7
Hack
Add missing libdevmapper dependency to the packagers documentation
Update minimum Go requirement to a hard line at Go 1.2+
Many minor improvements to the Vagrantfile
Add ability to customize dockerinit search locations when compiling (to be used very sparingly only by packagers of platforms who require a nonstandard location)
Add coverprofile generation reporting
Add -a to our Go build flags, removing the need for recompiling the stdlib manually
Update Dockerfile to be more canonical and have less spurious warnings during build
Fix some miscellaneous docker pull progress bar display issues
Migrate more miscellaneous packages under the "pkg" folder
Update TextMate highlighting to automatically be enabled for files named "Dockerfile"
Reorganize syntax highlighting files under a common "contrib/syntax" directory
Update install.sh script (https://get.docker.io/) to not fail if busybox fails to download or run at the end of the Ubuntu/Debian installation
Add support for container names in bash completion
Packaging
Add an official Docker client binary for Darwin (Mac OS X)
Remove empty "Vendor" string and added "License" on deb package
Add a stubbed version of "/etc/default/docker" in the deb package
Runtime
Update layer application to extract tars in place, avoiding file churn while handling whiteouts
Fix permissiveness of mtime comparisons in tar handling (since GNU tar and Go tar do not yet support sub-second mtime precision)
Reimplement docker top in pure Go to work more consistently, and even inside Docker-in-Docker (thus removing the shell injection vulnerability present in some versions of lxc-ps)
Update -H unix:// to work similarly to -H tcp:// by inserting the default values for missing portions
Fix more edge cases regarding dockerinit and deleted or replaced docker or dockerinit files
Update container name validation to include '.'
Fix use of a symlink or non-absolute path as the argument to -g to work as expected
Update to handle external mounts outside of LXC, fixing many small mounting quirks and making future execution backends and other features simpler
Update to use proper box-drawing characters everywhere in docker images -tree
Move MTU setting from LXC configuration to directly use netlink
Add -S option to external tar invocation for more efficient spare file handling
Add arch/os info to User-Agent string, especially for registry requests
Add -mtu option to Docker daemon for configuring MTU
Fix docker build to exit with a non-zero exit code on error
Add DOCKER_HOST environment variable to configure the client -H flag without specifying it manually for every invocation
更多内容请查阅：https://github.com/dotcloud/docker/blob/v0.7.3/CHANGELOG.md
来自:开源中国社区
