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Following its release earlier today of a 10.9.3 Mavericks preview and iTunes 11.1.6 beta, Apple has added new Safari betas for developers to test. The pre-release builds, versions 6.1.3 and 7.0.3 (Lion/Mountain Lion and Mavericks, respectively), are expected to accompany the release of OS X Mavericks 10.9.3 when it emerges from beta….
