Website software does not stay secure or stable on its own. The platform that runs your site, the extensions you add, and the themes that control its appearance all receive updates over time. Some updates fix security vulnerabilities. Others add features or improve compatibility. Ignoring them does not freeze your site in a working state. It gradually makes the site harder to maintain, slower to load, and more exposed to problems.
Keeping website software updated is one of the most practical maintenance tasks you can do. For why ongoing maintenance matters beyond updates alone, see the article on why website maintenance matters. If updates have been neglected for a long time and the site feels sluggish, see the article on why your website is slow.
What counts as website software?
Website software includes every layer that runs behind what visitors see in the browser.
Core platform
The base system that powers your site, whether that is a content management system, a website builder platform, or custom application code on a server. Core updates patch security holes, fix bugs, and maintain compatibility with modern browsers and server environments.
Extensions and plugins
Add-ons that extend what your site can do, such as contact forms, booking tools, or analytics integrations. Each extension is separate software with its own update cycle. An outdated extension can conflict with a current core version or introduce vulnerabilities even when the core platform itself is up to date.
Themes and templates
The design layer that controls layout, typography, and styling. Theme updates fix rendering issues, maintain compatibility with newer platform versions, and occasionally address security concerns in template code.
Why website software updates matter
Security
Most website hacks exploit known vulnerabilities in outdated software. When a security patch is released, the details of the vulnerability often become public. Sites running the old version become targets. Applying updates promptly closes those gaps before they are exploited.
Stability and compatibility
Updates fix bugs that cause pages to break, forms to fail, or features to behave unexpectedly. They also maintain compatibility with current browser standards. A site running software that is several major versions behind may display incorrectly on modern devices even though nothing visible changed on the site itself.
How to keep your website software updated safely
Back up before you update
Always create a backup of your site before applying updates, especially major version changes. If an update breaks something, you can restore the previous version rather than troubleshooting under pressure while the live site is affected. For backup guidance, see the article on how to back up your website.
Update one component at a time
When multiple updates are available, apply them individually rather than all at once. If something breaks after an update, you know exactly which change caused it. Start with the core platform, then update extensions and themes one by one, checking the site after each step.
Read release notes before updating
Release notes describe what changed and flag breaking changes. Read them before major version updates.
Test on a staging copy when possible
If your hosting plan includes a staging environment, run updates there first before applying them to your live site.
Set a regular update schedule
Apply security updates promptly. Schedule other updates weekly or monthly for consistency.
How WEMASY handles software updates
Websites on the WEMASY platform run on managed infrastructure where core updates and security patches are handled at the system level, so you can focus on content and design.
See what is included at the WEMASY website builder, or review plan options on the pricing page.
Frequently asked questions
How often should I update my website software?
Security patches should be applied as soon as they are available. Other updates can follow a regular schedule, such as weekly or monthly, depending on how actively your site changes. The key is consistency rather than waiting until something breaks. With WEMASY's website builder, you can set this up directly on your website.
Can updating website software break my site?
Yes, which is why backups and staged testing matter. Major version updates are more likely to cause compatibility issues than minor security patches. Updating one component at a time and checking the site after each step makes it easier to identify and fix problems quickly. A recent backup means you can restore the previous state if needed.
What happens if I never update my website?
The site may continue working for a while, but security vulnerabilities accumulate, performance degrades, and compatibility with modern browsers erodes over time. Eventually an outdated extension conflicts with the core platform, a security flaw is exploited, or the site stops rendering correctly on current devices. The longer updates are deferred, the more difficult and risky the catch-up process becomes.
Should I update plugins before or after the core platform?
Update the core platform first, then update extensions and themes. Extensions depend on the core platform version, so updating them before the core can create temporary incompatibilities. After the core update, check that the site works, then update extensions one at a time with a check after each.
Do I need to update if my site looks fine?
Yes. Many security vulnerabilities and compatibility problems are invisible from the front end until something breaks or the site is compromised. A site that looks fine today can be running software with known exploits that attackers actively scan for. Regular updates are preventive maintenance, not just a response to visible problems.
How do I know when updates are available?
Most content management systems and website platforms display update notifications in the admin dashboard. Enable email alerts if your platform supports them. On managed platforms, critical security updates are often applied automatically without requiring action from the site owner. Checking your dashboard weekly catches anything that needs manual attention.