update release notes #749

Job	Run time
Linux centos 7	4m 14s
Linux fedora latest	4m 37s
Native Linux (WError)	5m 28s
Native Linux (libc++ debug)	5m 48s
Native Linux (c++17)	5m 9s
Cross mingw64 DLL	9m 51s
Cross mingw64 static	10m 47s
RTEMS5	13m 34s
Native Linux with clang	4m 29s
Native Linux with clang ubsan	5m 42s
Native Linux with libevent stable	4m 32s
Native Linux with 7.0.2	4m 40s
Native Linux with 3.15	4m 13s
Native Linux with 3.14	5m 53s
OSX	8m 59s
vs2019 DLL	8m 23s
vs2019 static	8m 34s
	1h 54m 53s

Provide feedback