April 26, 2022 - See release notes at Percona XtraBackup 8.0.28-20 — Percona XtraBackup 8.0 Documentation
Regarding percona-xtrabackup-80_8.0.28-20, there is no glibc 2.12 version, is it not supported in the future?
Please refer About percona-xtrabackup-8.0.28-20-Linux-x86_64
Tarball glibc2.12 is built on centos6 and we dropped centos6 support
if use centos 6, must be use source code compile and install?
you can try to compile it by your own.
you can get source code from github.
And here is the instruction how to build PXB from sources
thank you , github can not compile , Download Percona XtraBackup 8.0 is ok