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I have a question about 1.0. I know you can define your modules' stability, but how much of the modules that will be shipped with 1.0 will have LTS? Specifically I am wondering if I follow http://doc.rust-lang.org/guide-plugin.html AFTER 1.0 if I'll still have to keep up with point releases because I am using the internal AST.

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Everything has stability markers. Currently, user defined macros and syntax extensions are not marked as stable. Syntax extensions will absolutely _not_ be stable at 1.0, macro stuff is a bit less clear, expect to hear about this soon.

That post is about syntax extensions, so yes, you'll have to be using the nightly build if you want to keep using them. They'll be considered high priority to stabilize, but given that they rely on compiler internals... I actually argued against writing that guide because of this, but eventually said okay.

Syntax extensions and the compiler internals are most likely not going to be stabilized for a while. Committing to a stable compiler core is a serious effort.

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