Você precisará prefixar a versão / opt / subversion no caminho do shell para que o ambiente prefira a nova versão.
O README do software declara:
Installation Notes
<snip>
Once installed, you will need to prepend /opt/subversion/bin to your PATH environment variable.
This can be done a multitude of ways but an easy one is to add the following to the end of /etc/profile or ~/.profile:export PATH=/opt/subversion/bin:$PATH