Maintenance for the week of December 16:
• PC/Mac: No maintenance – December 16
• NA megaservers for patch maintenance – December 17, 4:00AM EST (9:00 UTC) - 12:00PM EST (17:00 UTC)
• EU megaservers for patch maintenance – December 17, 9:00 UTC (4:00AM EST) - 17:00 UTC (12:00PM EST)
Its permanent. Every additional skillpoint spend only increases the range/radius of it. Every crafting skill line has its own keen eye. (Despite the fact, that they all have the same name.) On top of that it is a passive ability, so it doesnt require one of your skillslots.
thanks the reason I ask is because before today's update I had it,when I logged in this morning it wasn't there and I had to use a skill point to get it back.not a biggie maybe I should have waited a bit longer