PR11589 makes a change to the public API function `SSL_set_record_padding_callback` to change its return type from void to int:
https://github.com/openssl/openssl/pull/11589 This is technically an API break - but it doesn't seem too serious. It's possible, I suppose, that existing applications that use this will fail to spot the error return since this function can now fail. The function itself was only recently added (in 1.1.1), and I suspect real-world usage is very small (or possibly nil). Is this considered ok? Matt
