update changelog

9 jobs for fixes in 5 minutes and 16 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
passed #77311
VS2015
VS2015-32-bit

00:01:10

passed #77310
VS2015
VS2015-64-bit

00:01:19

passed #77309
VS2017
VS2017-32-bit

00:01:09

passed #77308
VS2015
VS2017-64-bit

00:01:30

passed #77305
Linux
clang-c++11

00:03:58

passed #77307
Linux
cppcheck

00:05:16

passed #77312
Linux
doc

00:00:09

passed #77304
Linux
gcc-c++11

00:04:00

passed #77306
Apple
macos-c++11

00:03:03