What’s new in this version
* Operating system upgrade - In this release, we have upgraded the operating system underlying the SSB appliance. The upgrade brings you a more recent and thus, more secure version of the operating system, with longer support lifetime.
* Single-file firmware - Starting with version 5.3, SSB can be updated using a single firmware file instead of having to upload the core and boot firmware separately. Maintenance releases of the 5.3 line will already use this mechanism, and will be released as an ISO file. Note that upgrading to SSB 5.3 still requires two separate firmware files.
* OpenSSL upgrade - The OpenSSL package in SSB has been updated. As a result, the rc4 and 3des ciphers, the sslv3 protocol, and the sha-0 digest method became unsupported.
* Bug fixes (see release notes)