Version 4.2.10¶

• Several performance improvements to handle thousands of tunnels with almost
  linear upscaling. All relevant data structures have been replaced by faster
  counterparts with better lookup times.

• Better parallelization to run charon on multiple cores. Due to improved
  ressource locking and other optimizations the daemon can take full
  advantage of 16 or even more cores.

• The load-tester plugin can use a NULL Diffie-Hellman group and simulate
  unique identities and certificates by signing peer certificates using a CA
  on the fly.

• The redesigned stroke in-memory IP pool handles leases. The "ipsec leases"
  command queries assigned leases.

• Added support for smartcards in charon by using the ENGINE API provided by
  OpenSSL, based on patches by Michael Roßberg.

• The Padlock plugin supports the hardware RNG found on VIA CPUs to provide a
  reliable source of randomness.