Minecraft 1.9 texture pack help?

I have a ton of texture packs and I use multiple texture packs. When I logged in in 1.9, I saw that I can't use the texture packs which I can normally use in 1.8 just fine. Is there an easy way to make my texture packs work in 1.9 or do I have to download them all again?

 

Usually you just have to wait until the texture pack releases a 1.9 version, and then download that.