I just posted the JAXB RI 2.1.1 and the JAXB RI 2.0.5.

2.1.1 is a bug fix release to 2.1 (see changes). This is the main development thread of the JAXB RI, and implements the latest and greatest JAXB 2.1 specification. JAXB RI 2.1.1 is going to be used in the upcoming JAX-WS RI 2.1.

2.0.5 is a bug fix release of the JAXB RI 2.0 line, which implements the JAXB 2.0 specification (see changes since 2.0.4.) The only folks who'd want to use this is those who that are already running JAXB RI 2.0.x in production, and experiencing issues that are fixed in 2.0.5.

New users and existing users of JAXB are encouraged to download JAXB RI 2.1.1, regardless of your target platform. Here are a couple of things to note:

1. You can use 2.1.x during the development, and have it generate code to run on 2.0.x runtime. This is useful when your target platform is JavaSE 6 and you plan to utilize the JAXB implementation in it.
2. To use JAXB 2.1.x with Java SE 6, you need to use the endorsed directory mechanism for jaxb-api.jar. Just the API jar, and no need to do that for the other jars.
3. All plugins developed for 2.x shuold run just fine.

As usual, we care about what your experience is, so let us know how you liked/hated JAXB.