Diffoniq can tell you when a newer version is available. The check is deliberately minimal: the program fetches one small text file from the Diffoniq website, compares the published version number with the version you are running, and — only if a newer release exists — offers to open the download page in your browser. Diffoniq never downloads or installs anything by itself.
Choose Help ▸ Check for Updates… at any time. You will always get an answer: a newer version with a link to the download page, a confirmation that you are up to date, or a note that the update server was not reachable.
Once per day, on the first start of the day, Diffoniq performs the same check quietly in the background. It only ever speaks up when a newer version is actually available; being offline or a failed check never shows a message and never delays the program start.
Not every release is announced. The automatic check only speaks up for releases we mark as worth your attention, and always for important fixes. Smaller releases in between are shown quietly: the Help menu names the newer version next to Check for Updates…, a manual check offers it, and the changelog lists every release.
If you answer No to an automatically offered version, that particular version is remembered and not offered again — the next release will prompt once more. A manual check always shows the newest version regardless.
Help ▸ Automatic Update Check toggles the daily
check; the checkmark shows the current state, and the setting is
remembered (UpdateCheck=0/1 in diffoniq.ini,
section [WDIFF]). Turning it on runs a due check right away.
The manual menu command works in either case. See
Installation & Portable Use for where
the settings file lives.
The check sends one plain HTTPS request for the version file. The request
names the program version and the Windows version, for example
Diffoniq/2.0.2 (Windows 11; x64) — and nothing else: no
license data, no usage data, no identifiers. Licensing is
completely offline and independent of the update check; see
Licensing. If you choose to open the download page,
the link carries the fixed campaign tag described under
Links to the Diffoniq website — the same for
every copy, with nothing that identifies you.