Upgrade from Rebug 4.81 DEX to 4.89.3 Evilnat

Hello guys, i've been off for 3 years and i almost forgot everything and i need time to learn again.
i have this version installed on my ps3

i would like to install the latest version of Evilnat 4.89.3, should be updating directly or i need to downgrade to OFW 3.55 and then update to latest version ? and which version should i use that would be great for my console ( CEX - DEX - PEX - DPEX ) ?

Thank you so much