https://wiki.debian.org/DebianJessie
2012-07-27: Distribution codename announced
2013-05-04: Wheezy released, development on Jessie started
2014-11-05: Jessie freeze Debian 8.0 "Jessie" is frozen
2015-01-26: Jessie installer RC1 released
Debian Wheezy Life cycle
2010-09-03: Distribution codename announced
2011-02-06: Squeeze released, development on Wheezy started
2013-01-23: Freeze policy update (no more translation updates), see announcement
2013-02-17: Wheezy releases release candidate 1 (RC1) installer, see announcement
2013-04-27: Wheezy releases release candidate 2 (RC2) installer, see announcement
2013-05-02: Wheezy releases release candidate 3 (RC3) installer, see announcement
2013-05-04: Initial release: 7.0.0 (press release).
Wheezy 从 RC1->Release 约花2.5个月, Jessie 应该也是差不多的时间了
另外 9 & 10 的代号如下
Debian 9 - Stretch 应该是取自玩具总动员
Debian 10 - Buster 应该是取自小姐与流氓

这个时间本来就没有定调，反正可以release自然就会放出来了，不用急。

Buster 不是那条老狗吗 ? 演三集从年轻演到老真辛苦XD