This release fixes immutability static analysis for internal ProxyManager symbols, which was incorrect due to being performed with an older psalm version. Support for stream wrappers in combination with the `FileLocator` also has been corrected, since stream wrappers are inherently incompatible with `realpath()` from php-src. Total issues resolved: **3** - [553: Revert "Documented basic immutable/mutation-free interfaces and services in the package"](https://github.com/Ocramius/ProxyManager/pull/553) thanks to @Ocramius - [557: Fix property initializers in ghost object examples](https://github.com/Ocramius/ProxyManager/pull/557) thanks to @ostrolucky - [558: Fix compatibility of `FileLocator` with stream wrappers](https://github.com/Ocramius/ProxyManager/pull/558) thanks to @Bittarman