> For the complete documentation index, see [llms.txt](https://docs.enercalc.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.enercalc.com/sel-faq/setup-and-licensing/installation-activation-lice/web-update-system.md).

# Web Update System

How to check for ENERCALC SEL updates automatically or manually, get email alerts, and read the build number.

How do I check for updates?

You can check for updates in two ways:

**Automatic Updates:**

Go to Settings > Updates and turn on “Automatically check for updates at program startup”. The software will check each time it starts and prompt you if an update is available.

**Manual Updates:**

Go to Settings > Updates and click Check for updates now. Follow the on‑screen instructions to install the latest version.

Why am I not receiving in‑app update notifications?

There are a few reasons why update notifications may not appear:

**Automatic updates are turned off:** Check Settings > Updates and make sure “Automatically check for updates at program startup” is enabled.

**Certain older builds:** If your ENERCALC software is within the build range 20.23.08.30 to 20.24.02.08, the automatic notification feature may not work correctly. In this case, you’ll need to perform a manual update once by directly downloading and running the latest [installer/updater](https://install.enercalc.com/ECSEL20_SETUP.EXE). After updating, automatic notifications should work as expected.

Can I get email notifications about new updates?

Yes. You can sign up for update announcement emails to receive alerts whenever a new build is released. Visit our [subscription page](https://updates.enercalc.com/subscribe) and sign up with your preferred email address.

{% hint style="info" %}
**Important:** These emails are **informational only**. They tell you an update is available, but you still need to run the software’s built‑in installer/updater to install it.
{% endhint %}

How do I understand the build number?

Each ENERCALC build number is based on the date the build was released.

For example: **20.25.07.31** → Released on **July 31, 2025** *(YY.YY.MM.DD)*

Since ENERCALC releases updates once or twice a month, a build number showing a date more than 1–2 months old usually means you’re running an outdated version. In these cases, it's a good idea to run the installer/updater to install the latest fixes and improvements.


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