Zed Series Release Notes¶
Python 3.6 & 3.7 support has been dropped. The minimum version of Python now supported is Python 3.8.
RHEL-8.3 kernel disabled the Intel “TSX” (Transactional Synchronization Extensions) feature by default as a preemptive security measure, but it breaks live migration from RHEL-7.9 (or even RHEL-8.1 or RHEL-8.2) to RHEL-8.3.
Operators are expected to explicitly define the TSX flag in their KernelArgs for the compute role to prevent live-migration issues during the upgrade process.
This also impacts upstream CentOS systems.