WordPress in 2025: how to update your site without risks

You open the WordPress dashboard and find a list of pending updates: the core, a handful of plugins, the theme. You know they should be installed, but the last time you clicked "Update all" the site was unreachable for half an hour. Updating WordPress in 2025 can be done calmly and methodically: in this guide you'll find the procedure we follow on our clients' sites.

Why postponing updates costs you dearly

An outdated WordPress site is the easiest target there is. Most of the compromises we see coming into support start from an old plugin with a known, public vulnerability: attackers don't pick your site specifically, they run automated scripts that hunt for vulnerable versions across thousands of domains. The longer you wait, the bigger the version jump becomes and the higher the chance that something breaks when you finally update. The best strategy is to update often and in small steps, with a repeatable procedure.

The backup comes before everything

Before touching anything you need a complete backup: files and database, not just one of the two. The points to verify:

• Complete backup: the WordPress folder (including uploads and wp-content) plus a database export.
• Downloaded backup: one copy must live off the server. If the update corrupts something and the backup lives on the same machine, you have a double problem.
• Tested restore: a backup you've never tried to restore is a hope, not a backup. At least once, verify that the restore procedure works.

Many hosts offer automatic snapshots: they're convenient, but check the frequency and retention. A weekly snapshot won't save you if the site receives orders or articles every day.

A staging environment to test without fear

Staging is a copy of the site where you can update, break and fix things without visitors noticing. Several hosts include it with one click; alternatively you can set one up on a password-protected subdomain. The flow we recommend to our clients is simple: clone the site to staging, run all the updates there, check the main pages and only then repeat the operation in production. For a blog or a brochure site ten minutes of checking is enough; for an eCommerce store it's worth testing checkout and payments in sandbox mode too.

If staging feels like overkill for your site, the minimum version is updating during low-traffic hours, with the backup ready and the maintenance page active.

The right order: PHP, core, plugins and theme

Updating everything at once makes it impossible to figure out what caused a problem. On the projects we manage we proceed like this:

1. Check PHP compatibility: before raising the PHP version on the server, check that the theme and plugins support it. Plugin pages in the official repository indicate the required PHP version and the tested one.
2. WordPress core: minor security updates can stay automatic; for major ones wait a few days after release, so widespread problems surface on other people's sites first.
3. Plugins, one at a time: update and reload the site after each one, starting with security plugins and those critical to operation (caching, builders, eCommerce). Read the changelog of the important plugins: two minutes that prevent surprises.
4. Theme last: if you use a child theme, your customizations are safe; if you've modified the parent theme directly, stop and fix that first, because the update would wipe out your changes.

The checklist before and after the update

Before starting: backup done and downloaded, staging ready or a low-traffic time slot chosen, list of active plugins saved, working FTP or SSH access in case you need to intervene manually. After the update: home page, main pages, contact forms, internal search, and for eCommerce the entire purchase journey. Also check the PHP error log: some problems don't show up on the page but pile up there.

One last habit worth its weight in gold: schedule a recurring maintenance window, for example every two weeks. Updates stop being an event and become routine administration, with small, predictable version jumps.

If you'd rather have someone take care of it

If managing updates, backups and staging eats up time you'd rather spend on your own work, we can handle it. With our websites and eCommerce service we manage the maintenance of clients' WordPress sites with procedures like the ones described here, verified backups and quick interventions when something goes wrong. Book a free call and tell us how your site is doing: we'll tell you where to start.