Major changes between OpenSSL 1.0.0 and OpenSSL 1.0.0a:
+ o Fix for security issue CVE-2010-1633.
o GOST MAC and CFB fixes.
Major changes between OpenSSL 0.9.8n and OpenSSL 1.0:
Major changes between OpenSSL 0.9.8n and OpenSSL 0.9.8o:
+ o Fix for security issue CVE-2010-0742.
o Various DTLS fixes.
o Recognise SHA2 certificates if only SSL algorithms added.
o Fix for no-rc4 compilation.