no, nothing new. I fertilize with organic citrus fertilizer and cheleated iron this spring because not diligent with feeding last year (foliar spray) as I had pale leafs. I just don't remember when this showed up as this is only on last years leafs and they do not look like they will fall off anytime soon. Re-potted a week ago and roots looked healthy as much as I could see. Lots of white tips, nothing mushy or falling appart. Wish I would have took picture of the roots.