If you update your Solana CLI to use the latest Agave client as described here https://solana.com/docs/intro/installation: sh -c "$(curl -sSfL https://release.anza.xyz/stable/install)" ,

you need to update your Solana CLI version in your Anchor.toml file.

E.g. solana_version = "1.18.24"

If you update your Solana CLI to use the latest Agave client as described here https://solana.com/docs/intro/installation: sh -c "$(curl -sSfL https://release.anza.xyz/stable/install)" ,

you need to update your Solana CLI version in your Anchor.toml file.

E.g. solana_version = "2.0.15"

Reference: https://solana.com/docs/intro/installation