2017.11-rc1, To be released
+ libssh2: there is now an explicit choice of the backend to use
+ (mbedtls, gnutls or openssl). Previously, the choice was implicit
+ based on the TLS library that was selected. Now, it is possible to
+ choose the backend, which is important if several TLS libraries are
+ selected. The default is mbedtls, even if you didn't have mbedtls
+ selected before.
+
netsnmp: all MIB files are now installed, making the target filesystem a
bit bigger than before. To remove unneeded MIBS, you should use a
post-build script.