[openssl-users] Backward compatibility for openSSL letter releases (openSSL 1.0.2 x)

Matt Caswell matt at openssl.org
Tue Oct 9 12:50:18 UTC 2018

On 09/10/18 10:43, Satish Lvr wrote:
> Hi All,
> Can we assume that backward compatibility would be maintained between
> letter releases of a version such as openSSL 1.0.2 (Eg: between openSSL
> 1.0.2a and openSSL 1.0.2p) unless there is security bug fix ?

The OpenSSL policy on this is here (first para):


Letter releases are backwards ABI and API compatible. There should be no
need to recompile your application to update to a later letter release.


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