# MySQL 8.4 reference manual upgrade paths 5.7 8.4 unsupported

Status: search-observed
Product: MySQL 8.4
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/direct-mysql-5-7-to-8-4-upgrade-unsupported
Machine JSON: https://gitdocs.org/api/fixes/direct-mysql-5-7-to-8-4-upgrade-unsupported.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

The local workspace gives the symptom and stale integration shape, but the correct repair depends on current official product behavior or recent release notes.

## Fix

```
Verifier accepts a repair record only if it states the current contract and an actionable fix using source-backed product terms.
```

## Avoid

- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.

## Observed Codex Queries

- site:dev.mysql.com/doc MySQL 8.4 upgrade from MySQL 5.7 not supported direct upgrade
- MySQL 8.4 reference manual upgrade paths 5.7 8.4 unsupported
- MySQL 8.4 Upgrade Paths official documentation
- https://dev.mysql.com/doc/refman/8.4/en/upgrade-paths.html

## Sources

- MySQL 8.4.0 release notes: https://dev.mysql.com/doc/relnotes/mysql/8.4/en/news-8-4-0.html
- Official reference opened by Codex: https://dev.mysql.com/doc/refman/8.4/en/upgrade-paths.html