As I'm sure we're all aware, Mojang have adopted a new development and distribution model for Minecraft since around 1.8 was in development: pre-release builds. Though it really goes without saying, I'd like to make Bukkit's stance clear on these and other experimental builds: At this point in time, Bukkit will not be supporting any build that is not an official update for Minecraft released by Mojang. If Mojang don't feel that they can recommend and stand by the builds they've released, then what makes you think we can recommend them either? Keeping up with pre-release builds is an unrealistic feat. With each Minecraft update released we need to rewrite a large portion of CraftBukkit in order to make our work compatible with the Minecraft update. As it stands, the amount of work it would require to update our work for every pre-release is not worth it, especially if that work becomes outdated within two weeks or so. Thanks for your support and understanding in this matter.