I've installed a newer version of svn on my system in ~my/home/bin and put the path to it. So now from command line a newer version of svn is used instead of the old one, located in /usr/bin/.
However svnant keeps using an older svn in /usr/bin.
How can I tell svnant to use a newer svn?
You may want to do something like:
mv /usr/bin/svn /usr/bin/svn_old
ln -s ~/your/home/bin/svn /usr/bin/svn
So you have a copy of the old one if you need it, while linking the currently used binary to your new version.
As seen there svnant does not always uses the executable : http://subclipse.tigris.org/svnClientAdapter.html
1st-JavaHL native (JNI) subversion library (http://svn.collab.net/repos/svn/trunk/subversion/bindings/java/javahl/)
2nd-JavaSVN (pure Java) subversion API implementation (http://tmate.org/svn/)
3rd-svn(.exe) command line client wrapper
For the first too you would have to upgrade the jar.
If it really uses the executable you should try putting your executable in the path first before the other svn exe or linking it to /usr/bin
ln -s /home/yourself/bin/svn /usr/bin/svn