Cipher suites can be enabled or disabled at compile-time, which is why you'd want to be able to run the same command against both versions of OpenSSL: so you can see what was actually compiled into the package. Someone could also have backported certain suites into (or out of) the code before compiling and releasing the packages you have. Given that long version string, you seem to have received OpenSSL from some third-party vendor (CentOS?) who is not providing vanilla OpenSSL, so the official OpenSSL changelogs won't tell you what other changes have been made: you will probably need to contact your vendor for their changelogs.
As a starting point, or if you just care about what could have been compiled in assuming the code was taken directly from OpenSSL without any changes, OpenSSL provides their changelogs by version so you can see a technical list of what was changed in each version (for example, 0.9.8c removed 3 ciphersuites and added 1).