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+Hot-Swappable Network Stacks!
+====
+
+We've now enabled the ability for users to build the ZeroTier SDK with different network stacks with the mere flip of a compiler flag as well as running different stacks concurrently!
+
+`SDK_LWIP=1` and `SDK_PICOTCP=1` will enable the lwIP and picoTCP network stacks respectively.
+
+Currently our lwIP stack driver supports IPV4 and limited IPV6, whereas our picoTCP stack driver supports both IPV4 and IPV6 with no known issues.
+
+To enable specific protocol versions use `SDK_IPV4=1` and `SDK_IPV6=1` in cnojunction with the above stack selection flags.
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