2.3.0

Breaking

• JSON and CSV output formats have changed to reflect the fact that declarations can have multiple IDs if they're members of multiple build targets.
• Declarations accessible by the Objective-C runtime are no longer retained by default. The --no-retain-objc-annotated option has been removed, and --retain-objc-accessible added.

Enhancements

• Protocols that are never used as an existential type are now explicitly identified as redundant rather than simply unused, which could be confusing.
• Add --clean-build flag to clean build artifacts before the build step.
• Add support for files that are members of multiple build targets. Such files no longer produce erroneous results.

Bug Fixes

• Protocol members whose implementation is provided by an external type, yet aren't referenced via a value type are now identified as unused.
• @IBInspectable properties are now retained.
• Declarations ignored with a '// periphery:ignore' comment now also retain their references to other declarations.
• Fix running Periphery from within Xcode where Xcode's environment variables could cause build failures or incorrect results.
• Fix an issue where a protocol could incorrectly retain references to methods in an unused conforming declaration.