Leveling a druid!

If I look down my list of characters I have two who are not yet 90th level. One, a deathknight, is only 60th, since I heard that you needed to have a 60th level character in order to get an extension on one of your trade skills? Not sure if that is true or now, but I quickly leveled a Deathknight to 60th just in case. The other class which is below 90th was my druid at 84th. Noticed I said ‘was’ since this has now changed!