Changes by Version
==================
Release Notes.

Apollo 1.9.2

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* [Fix the issue that property placeholder doesn't work for dubbo reference beans](https://github.com/apolloconfig/apollo/pull/4161)
* [Update xstream version to 1.4.18](https://github.com/apolloconfig/apollo/pull/4177)
* [Fix the NPE occurred when using EnableApolloConfig with Spring 3.1.1](https://github.com/apolloconfig/apollo/pull/4179)
* [Catch LinkageError for ClassLoaderUtil.isClassPresent in case class is present but is failed to load](https://github.com/apolloconfig/apollo/pull/4187)

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All issues and pull requests are [here](https://github.com/apolloconfig/apollo/milestone/10?closed=1)
