Methods for updating applications

A storage medium including program instructions executable by one or more processors that, when executed, cause the one or more processors to perform operations, the operations comprising:

• receiving, from a remote computing device, an update request, the update request including a first signature corresponding to a client-side application package that is stored at the remote computing device;
• identifying a first server-side application package using the first signature;
• and
• generating a differential update package using the first server-side application package and a second server-side application package as inputs, wherein the differential update package, when applied to the client side application package, is operable to modify to the client-side application package such that it is functionally equivalent to the second server-side application package.

An apparatus, comprising:

• one or more processors;
• and
• one or more memory devices for storing program instructions used by the one or more processors, wherein the program instructions, when executed by the one or more processors, cause the one or more processors to:
• receive, from a remote computing device, an update request, the update request including a first signature corresponding to a client-side application package that is stored at the remote computing device;
• identify a first server-side application package using the first signature;
• and
• generate a differential update package using the first server-side application package and a second server-side application package as inputs, wherein the differential update package, when applied to the client side application package, is operable to modify to the client-side application package such that it is functionally equivalent to the second server-side application package.