2.4.0

Breaking Changes

• Images will be loaded from an external source (e.g. http://example.com/img.png) only if the reader is explicitly set to allow it via $reader->setAllowExternalImages(true). We do not believe that loading of external images is a widely used feature. This is a necessary change for security purposes. It unfortunately breaks Semantic Versioning for reasons described above; there is no way to start a new major version for this branch.