Composer Atomic Vendor Swap vs Blue-Green Load Balancer for Zend Framework Zero-Downtime Migration
Assuming Zend Framework 2.x with the default ModuleManager class map cache, the goal is to migrate a small application to updated dependencies without dropping active requests. The constraint involves the autoloader’s cached class map and the ServiceManager’s lazy alias resolution. A Composer-driven atomic vendor swap keeps one directory live while dependenc
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