Upgrate rAthena is safe?

[vomaito]

Well, I had a server but I still use SVN r17726, if I change All emulator to a GitHub rAthena r15075, Will I had Problems with DB? Or is safe change all emulator using the same DB? Thanks

[Emistry]

it would be fine if you did update everything correctly.

[Vy Low]

Well, I had a server but I still use SVN r17726, if I change All emulator to a GitHub rAthena r15075, Will I had Problems with DB? Or is safe change all emulator using the same DB? Thanks

just check all the sql that have been added from your current to the lastest and excute them all in your database.

[Haziel]

It also depends on the level of customization you have on your current source, but, my advice is to do it step by step so you know what is being modified and why.

[vomaito]

OK, thanks I will download a copy and then patch my customizations.

I use this post to ask if there is a program like "Manually Differ (?)" Like the windows of "SVN Tortoise Differ Apply" but that open a file and show "Original","New" to make manual diff easier? 

[Nova]

Definitely safe, I just upgraded my server to the latest rA and all seems well :]

[Azeroth]

Definitely safe, I just upgraded my server to the latest rA and all seem well :]

I have an old revision of rAthena since 2013 and until i'm still using it. Due to heavy modifications i can't upgrade is there way i can update it? Any guide for this ? It'll be appreciate someone can give me

A guide.