How do I update svn when using TortoiseSVN?

I've just installed TortoiseSVN v1.14.7, which is linked against the Subversion library 1.14.3. But when I do svn --version I get 1.6.6. Going to the Apache downloads page just links back to the TortoiseSVN downloads page.

To note : I'm trying to see why I get the error "This client is too old to work with working copy" when using svn log despite both client and server being on svn 1.6.6.

Running where svn indicates I have 2 installed:

C:\Program Files (x86)\Subversion\bin\svn.exe
C:\Program Files\TortoiseSVN\bin\svn.exe

It seems you have two different instances of Subversion CLI installed.

You have the following options to remedy the situation:

• Uninstall the older version of Subversion.
• Remove the directory where the wrong version of svn.exe resides from your PATH environment variable.
• Make sure the newer version of svn.exe is found in PATH before the other one.