From: "Francesco Dal Bello" <[EMAIL PROTECTED]>
fdalbello> I have tried to build my company utility with
fdalbello> <openssl-0.9.7-stable-SNAP-20020226> and I have obtained a
fdalbello> mistake (a function doesn't exist anymore). This mistake
fdalbello> doesn't exist using 0.9.6c release.
I'd like to know what function it is you're missing. Either it is an
actual glitch on our part, or we might have a good explanation for it
missing.
fdalbello> The 0.9.7 will be quite compatible backwards?
Interesting way of putting the question :-). Yes, I believe we can
say that it will be "quite" compatible :-).
On a more serious note: we're doing our best to keep backward
compatibility. However, there are needed changes that make backward
compatibility tricky at best and impossible at worst. Fortunately,
this only applies to some parts of OpenSSL.
The two things that have changed enormously are the ASN.1
parser/coder/decoder and the ENGINE framework (but that only really
affects those who've used the engine variant of OpenSSL 0.9.6x).
Something that will affect you on a linker symbol level is the change
of the symbols for the DES part. To (re)link with 0.9.7, you
basically have to recompile the applications that use the DES
functions directly (something we don't recommend to start with).
BEWARE: this has a great impact on those that use libcrypto as a
shared library (something we do not recommend for anything other than
saving space)!
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