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@@ -18,6 +18,13 @@ Redis version >= 1.2.0. The library comes with multiple APIs. There is the *synchronous API*, the *asynchronous API* and the *reply parsing API*. +## UPGRADING + +Version 0.9.0 is a major overhaul of hiredis in every aspect. However, upgrading existing +code using hiredis should not be a big pain. The key thing to keep in mind when +upgrading is that hiredis >= 0.9.0 uses a `redisContext*` to keep state, in contrast to +the stateless 0.0.1 that only has a file descriptor to work with. + ## SYNCHRONOUS API To consume the synchronous API, there are only a few function calls that need to be introduced: |