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From Adobe Systems:
The After Effects CC 12.1 updates enables After Effects CC to run on Mac OS X v10.9 (Mavericks). This full update makes it unnecessary to install the previous After Effects CC (12.0.1) patch. Unlike the After Effects CC (12.0.1) patch, the After Effects CC (12.1) update can be used to update the trial version of After Effects CC (12.0).
