The build requirements have been upgraded to gcc >= 5.3 or clang >= 3.6. This effectively drops support for all versions of Ubuntu older than 16.04 that use distribution-provided compilers and packages.
Transition to v0.3 packet format (Issues #4691 and #4684)
Fix forceful shutdown of Face when destructing Logic instance (Issue #4525)
Fix compilation against the latest version of ndn-cxx library
Upgrade waf to the latest version and other improvements
Breaking change Use bzip2 compression of sync Data payload (Issue #4140)
Disallow Interest loopback on sync prefix (Issue #3979)
Avoid ABI differences between debug/optimized modes (Issue #4496)
Extend Socket and Logic API:
Allow customization of sync interest lifetime (Issue #4490)
Limit the size of created sync Data and enable ability to customize the maximum packet size through environment variable (Issue #4140)
Allow override of the session number
Disable use of Exclude filter (preparation for Exclude deprecation in NDN and implementation was only partially correct)