收到 Boost 的通知信，
说以后固定的释出时程为一年三次，
在每年四月、八月、十二月的第二个星期三。
原信件内文：
[Boost-announce] [release] Release schedule changes..
After some discussion in the Boost Release Team we've decided on an ongoing
schedule for releases. Taking into account the realities of how long it takes
for authors and the release team to work on a release we've decided to move
to *three* releases a year. The targets for the releases will now be:
* Spring release on the second Wednesday of April.
* Summer release on the second Wednesday of August.
* Fall/Winter release on the second Wednesday of December.
There will be no January release. This will allow for the fact that most
people are on extended holidays during Winter. It will also allow for people
to work on larger changes that require more testing time during the longer
Winter period. We are also moving to Wednesday release to allow the release
managers non-weekend time to work before and after the release.
Please consult the Boost calendar for specific dates and merge schedule for
the next release.
Thanks, the Boost Release Team.