2. A series of catchain (basic consensus protocol) security improvements
3. Update for Fift libraries and FunC: better error-handling, fixes for `catch` stack recovery
4. A series of out message queue handling optimization (already deployed during emergency upgrades between releases)
5. Improvement of binaries portability
Besides the work of the core team, this update is based on the efforts of @aleksej-paschenko (portability improvement), [Disintar team](https://github.com/disintar/) (archive manager optimization) and [sec3-service](https://github.com/sec3-service) security auditors (funC improvements).
