Amps (Exp Scrolls) Stackability 5x in v16 or v17?

When did flyff change the stackability of the Scroll of Amplifciation (ES) from 3 into 5 tmes?
Was it in v16 or in v17 or even later? Or already in v15???

I personally think it was right about before the Ultra Amps (Q R X V etc.) came out but still before we had the Bahara Dessert (which is v17 content).
As i remember leveling with 5x Stacked R Amps in Elliun (Kailun Grasland) when level 139 was the max, which was in v16

I would say it was v16 but i could be wrong, what do you guys think?

Pretty sure it was at the start of v16 right when they added namechange scrolls to the gPotato shop afaik. I remember how I bought 1 namechange scroll and 5x R Amplis on gFlyff after the big update.

*That was sadly the end of official flyff as well

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12.10.2010

Was shortly before v16 was released.