There isn't a super efficient way to check which mods have been updated but you can at least go through the Create addons by checking their version history and see if they explicitly state they support Create 6.0.0+ (ideally the closer to the number 6.0.4, the better. Create 6.0.4 is what you are currently on).
For example your version of Create Sifting is out of date and there is a later version that supports Create 6.0.3.
However that's just one example I picked out of the log and unfortunately there are probably other mods out of date. Some of the mods that haven't updated yet might not even be Create addons but other content mods.
Unfortunately it is always a little messy like this for some time after Create has a major update and takes mod developers some time to be able to update the mods.