"Percona, a provider of open source database support services and Database-as-a-Service (DBaaS), has warned that more than half its MySQL instances remain on MySQL 8.0, support for which ends on April 30, 2026. Peter Zaitsev, Percona co-founder, told The Register: "Every piece of complex software has bugs which may not have been found yet. Some of those bugs are also security bugs."
"Data from PMM, Percona's open source database management tool, shows that 58 percent of MySQL and MariaDB (a MySQL fork) instances are running MySQL 8.0, while 18.8 percent are running 5.7, which went out of support in 2023. While users might put off database migration because of the disruption involved, they should be aware that the upgrade from MySQL 8.0 to 8.4 - the most recent stable version - is not nearly so onerous as the upgrade from 5.7 to 8.0."
Users must migrate from MySQL 8.0 before April 30, 2026 to remain on a supported release and avoid security and reliability risks. Current deployment data show 58 percent of MySQL and MariaDB instances run MySQL 8.0, while 18.8 percent still run 5.7, which is already unsupported. Unsupported software will no longer receive fixes for bugs, including security bugs, increasing exposure. The upgrade path from 8.0 to 8.4 is substantially less disruptive than the earlier jump from 5.7 to 8.0. MySQL’s popularity has declined relative to PostgreSQL, though it remains widely used among developers.
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