I dipped my toes in the query ocean and noticed the changes.
While the agents I want to query haven't really changed, some of their policies have. For the better, in my opinion.
Two agents who have a no response policy (meaning no rejection letter, just silence if they're not interested) now send an automated confirmation that they've received my query.
I love that. Two years ago I queried the same agents and had to hope my e-mail reached them. Now I can KNOW for sure that the agent got my query and just isn't interested when I don't hear back.
Have you noticed any changes since the last time you queried? What things do publishing professionals do that you appreciate?