On December 20th, 2018 we began to sign our packages with a new encryption key. Our percona-release package contains both the latest and older package signing keys. However, older versions of the percona-release rpm package do not contain our latest key. Users with older percona-release packages installed, that have not been updated, may see an error message when trying to install our newer packages.
Redhat Enterprise Linux (RHEL) and CentOS users may see an error similar to the following:
$ sudo yum update percona-release
Ubuntu and Debian systems will not encounter this error as package signing and key verification works differently on those systems.
The GPG keys listed for the "Percona-Release YUM repository - x86_64" repository are already installed but they are not correct for this package