Taken together, API versioning and retirement constitute the last of the eight phases of API lifecycle management. They're also considered to be an art unto themselves. Taking that art to another level however could involve some new thinking that involves the idea of "microversioning."
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While there’s a lot of chest-thumping going on over who has the biggest cloud, there’s no doubt that IBM suddenly has a lot of momentum following its acquisition of SoftLayer. Amazon Web Services (AWS) remains the largest public cloud service by far in terms of the pure number of virtual machines. But when you consider more than just infrastructure-as-a-service (IaaS) in the cloud, IBM claims to have generated $4.4 billion in revenue across a cloud ecosystem that includes SoftLayer, 150 software-as-a-service (SaaS) applications and a vast array of cloud consulting services.