The Aperture changes keep on coming: Apple today has released Aperture 2.1 for Mac, an update that incorporates various bug fixes and feature tweaks. But the centrepiece of this version - the seventh Aperture-related software release from Apple in a little over six weeks - is the rollout of image editing plug-ins to Apples pro photo management and RAW conversion application. While Apple has included an example plug-in of its own, the roster of outside developers already working on plug-ins is the real story: among early plug-in creators are Nik, with Viveza, and PictureCode, with Noise Ninja. Heres a first look at Aperture 2.1.

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