Authy shortened max PW length

When I open my Authy app I have been getting messages saying that password requirements have been updated. It didn’t say in what ways they changed but it did say that they are 24 characteristics max which means my four word passphrase is too long. It seems like Authy is wanting you to use more of a random password. I prefer a pass phrase for Authy because even though it is written down it is is something I prefer to remember and want to be easy to type on a mobile device. Anyone familiar with why Authy did this? DO you think three random words is secure enough for Authy?