Apart from being used as a developer repository, subversion is used by Trac.
Subversion installation was pretty straightforward.  I installed the RPMs with yum:
# yum install subversion mod_dav_svn
–Optionally install bindings on behalf of languages
# yum install subversion-perl subversion-ruby  subversion-java
– create a repository
# svnadmin create /var/www/svn/repository-name
– edit httpd.conf (the RPM creates /etc/httpd/conf.d/subversion.conf)
LoadModule dav_svn_module     modules/mod_dav_svn.so

LoadModule authz_svn_module   modules/mod_authz_svn.so

– create a location
<Location /svn>

Options Indexes

Order allow,deny

Allow from all
DAV svn

SVNParentPath /var/www/svn
<LimitExcept GET PROPFIND OPTIONS REPORT>

AuthType Basic

AuthName “Subversion Login”

AuthUserFile /var/www/access/.htpasswd

Require valid-user

</LimitExcept>

</Location>
– restart apache
Note on behalf of all you rocketscientists who utilize the SVNParentPath directive:
http://localhost/svn returns 404 Forbidded.  Navigate to http://localhost/svn/respository-name  works.
Set up svn to utilize HTTPS optionally.