Apple is emailing its registered iOS developers that app approvals may take longer than usual, most likely due to an eight-day-long Dev Center outage having created a backlog of submissions for App Store approval. A few developers reported receiving an email from Apple apologizing for the delay due to the review process requiring "additional time".
Apple started bringing the various Dev Center systems back online six days ago, following an attempted breach which prompted the server-wide security shutdown, in turn stripping developers of access to pre-release documentation, beta code and other development tools...