Where do the downloads come from?

From the manufacturer. Awernica links to the official file or support page and hosts no firmware itself.

Why is there sometimes no date?

Many manufacturers do not publish one. The page shows when Awernica first saw the version, and says that it is not the release date.

Read the release notes and test on one camera first, particularly on a site where a VMS or integration depends on the version.

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Find a model to see the latest version we have read from the manufacturer, with the official download and release notes.

Find the camera

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Find a model to see its latest firmware.

Source: the manufacturer's own pages, read during catalog syncs. Awernica hosts no firmware.
Release date not published.
Check the file's signature or checksum where the manufacturer publishes one.

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Firmware Release Alerts and Firmware Verification compare what is installed with what is latest, per device.

Where do the downloads come from?: From the manufacturer. Awernica links to the official file or support page and hosts no firmware itself.
Why is there sometimes no date?: Many manufacturers do not publish one. The page shows when Awernica first saw the version, and says that it is not the release date.
Should I always update?: Read the release notes and test on one camera first, particularly on a site where a VMS or integration depends on the version.