Apple has informed Mac developers that the deadline for sandboxing apps has been extended to June 1st. The date was postponed last November and set to take place on March 1st. Apple has been working on technical specifications for third-party developers since.
For those that are unfamiliar, “sandboxing” is essentially confining an app’s system access to its specific functions or entitlements, thereby hindering the possibility of an app behaving maliciously on a system level. Developers now have more time to appropriately implement sandboxing into their apps for the Mac App Store.