Preparing release version 5.4.1

Preparing release version 5.4.0

Preparing release version 5.3.5

Preparing release version 5.3.4

Fix Hugo van Kemenade name in release announcement

Co-Authored-By: Hugo van Kemenade <[email protected]>

Preparing release version 4.6.9

Preparing release version 4.6.8

Remove duplicated user from announcement

Preparing release version 4.6.7

Preparing release version 5.3.1