update new features list; also fix the "mirror" release note

10 jobs for fix-doc in 8 minutes and 36 seconds (queued for 1 second)
Status Job ID Name Coverage
  Precheck
passed #21914
amd64 docker linux
precheck:debian:sid:amd64

00:00:11

 
  Build
passed #21915
amd64 docker linux
build:clang:debian:sid:amd64

00:03:27

passed #21917
i386 docker linux
build:clang:debian:sid:i386

00:03:45

passed #21916
amd64 docker linux
build:debian:sid:amd64

00:01:50

passed #21918
i386 docker linux
build:debian:sid:i386

00:01:40

 
  Test
passed #21922
amd64 docker linux
systemtest:debian:sid:amd64

00:04:37

passed #21923
i386 docker linux
systemtest:debian:sid:i386

00:04:34

passed #21920
amd64 docker linux
unittest:clang:debian:sid:amd64

00:00:44

passed #21919
amd64 docker linux
unittest:debian:sid:amd64

00:00:46

passed #21921
i386 docker linux
unittest:debian:sid:i386

00:00:45