# WordPress core switch checklist
## Volade — practical guide · June 2026

Print this page or check items as you go.

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## Phase 0 — Inventory (before any change)

- [ ] Note current WordPress version: __________
- [ ] Note last core update date: __________
- [ ] List critical plugins (WooCommerce, payment, builder): __________
- [ ] Full backup files + database
- [ ] Staging available (recommended): yes / no

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## Phase 1 — Compatibility preflight

- [ ] PHP Compatibility Checker scan (plugins + theme)
- [ ] CVS preflight report read for target version
- [ ] Plugin warnings accepted or plugins updated / disabled
- [ ] Server PHP compatible with target (green CVS diagnostic)
- [ ] Client / team notified — maintenance window scheduled

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## Phase 2 — Pin & preset

- [ ] Core Version Switcher installed and active
- [ ] Legacy WP Downgrade deactivated (if migrating)
- [ ] Preset chosen: Rollback / Previous patch / Latest / manual __________
- [ ] CVS diagnostics: all green or warnings documented
- [ ] JSON config export saved (agency)

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## Phase 3 — Reinstall & tests (5/5)

- [ ] Dashboard → Updates → Reinstall launched
- [ ] Displayed version = pin target after operation
- [ ] Public front: home + key page OK
- [ ] wp-admin: login + editor OK
- [ ] Store: test checkout OK (if applicable)

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## Phase 4 — Production & follow-up

- [ ] 48 h watch — PHP logs, Site Health
- [ ] Client folder: before/after version + archived JSON

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## If something goes wrong

| Symptom | Lead |
|---------|------|
| Reinstall button missing | CVS diagnostics · updater lock · ZIP locale |
| Database error | Restore DB backup aligned with target |
| Plugin fatal error | Disable plugin · rescan PCC |
| Site still down | Previous patch or full backup restore |

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volade.com/en/blog · Core Version Switcher by Volade