Header file opensslv.h also contains information about the version number. The command line tool version can be used to determine the installed OpenSSL version. The full release strategy for OpenSSL is available here Finding the current version Letter releases, such as 1.0.2a, exclusively contain bug and security fixes and no new features. I don't know the version of the OpenSSL library. ![]() There is no need to recompile applications to benefit from these features. 25 I have a pre-built OpenSSL library (libssl.a and libcrypto.a) which are being used for my C++ application. Note: many Linux distributions come with pre-compiled OpenSSL packages. The condition to get a link here is that the link is stable and can provide continued support for OpenSSL for a while. It should be noted that some features are transparent to the application such as the maximum negotiated TLS version and cipher suites, performance improvements and so on. Binaries Some people have offered to provide OpenSSL binary distributions for selected operating systems. This means that an application compiled and dynamically linked with 1.1.0 does not need to be recompiled when the shared library is updated to 1.1.1. What to know and do about this week’s OpenSSL vulnerability A new vulnerability has just been disclosed in OpenSSL, an open-source cryptography library that is very widely used in a range of commercial and internal applications to provide encryption and other security and privacy capabilities. 1.1.1, can and are likely to contain new features, but in a way that does not break binary compatibility. Minor releases that change the last digit, e.g. wolfEngine is structured as a separate standalone library which links against wolfSSL (libwolfssl) and OpenSSL. Major releases that change one/both of the first two digits, which can break compatibility with previous versions wolfSSL has an OpenSSL engine, wolfEngine. These can change depending on the release type: OpenSSL version numbers are formatted as n1.n2.n3x, where n1-3 are numbers and x, if present, is one or more letters.
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