Upgrade SVN from version 1.5.6 (r36142) to 1.8.5

[Guido Larrain]

Hello;

I'm planning to upgrade my SVN from version 1.5.6 (r36142) to 1.8.5 and i
wanna know if i need to do some "special" steps to perform this.

Thanks in advance!!

-- 
Guido