h2 {
margin-top: 2em;
}
table {
width: 100%;
border-collapse: collapse;
font-size: 0.95em;
}
th, td {
border: 1px solid #d0d0d0;
padding: 10px 14px;
text-align: left;
vertical-align: middle;
}
thead th {
background-color: #f5f5f5;
font-weight: 600;
}
tbody tr:nth-child(even) {
background-color: #fafafa;
}
.callout {
border: 1px solid #f0c419;
background-color: #fdf6e3;
padding: 14px 18px;
border-radius: 6px;
margin: 1.5em 0;
}
Version 26.0.0 of 4K Image Compressor brings a more polished interface, better support for Linux users with its freshly added dark theme, and a fix for one of the more persistent file-handling headaches reported by our HEIC and HEIF users. Here's a closer look at what changed.
A Cleaner, More Consistent Look
The most visible change in this release is a refresh of the Control Panel and the News section. Buttons throughout both areas have been redesigned to match the app's updated visual language, giving the interface a more cohesive and modern feel. It's not a dramatic overhaul, but the kind of detail-level polish that makes the app feel more consistent every time you open it, whether you're adjusting compression settings or catching up on the latest updates from the News tab.
Dark Theme Arrives on Ubuntu
Linux users get a meaningful upgrade in this version: 4K Image Compressor now supports dark theme on Ubuntu. Rather than requiring a manual toggle, the app reads your system's appearance settings and adapts automatically, so the interface stays in sync with however you've configured your desktop.
HEIC & HEIF Files Now Work as Expected
That, perhaps, is the most practical fix in this release addresses an issue where opening HEIC or HEIF files could trigger an "unsupported input format" error, even though these are common formats produced by default on many iPhones and other modern devices. That error is now resolved, and both formats are handled correctly.
Many Improvements Under the Hood
Beyond the headline changes, this release also includes a number of smaller UI/UX and stability improvements. None of these are big enough to warrant their own section, but together they contribute to a smoother, more reliable experience across the app.
As always, the update is free for existing users of 4K Image Compressor. Make sure you update your current version to 26.0.0 on our website or inside 4K Image Compressor.

Version 26.0.0 of 4K Image Compressor brings a more polished interface, better support for Linux users with its freshly added dark theme, and a fix for one of the more persistent file-handling headaches reported by our HEIC and HEIF users. Here's a closer look at what changed.
A Cleaner, More Consistent LookThe most visible change in this release is a refresh of the Control Panel and the News section. Buttons throughout both areas have been redesigned to match the app's updated visual language, giving the interface a more cohesive and modern feel. It's not a dramatic overhaul, but the kind of detail-level polish that makes the app feel more consistent every time you open it, whether you're adjusting compression settings or catching up on the latest updates from the News tab.
Dark Theme Arrives on Ubuntu
Linux users get a meaningful upgrade in this version: 4K Image Compressor now supports dark theme on Ubuntu. Rather than requiring a manual toggle, the app reads your system's appearance settings and adapts automatically, so the interface stays in sync with however you've configured your desktop.
HEIC & HEIF Files Now Work as ExpectedThat, perhaps, is the most practical fix in this release addresses an issue where opening HEIC or HEIF files could trigger an "unsupported input format" error, even though these are common formats produced by default on many iPhones and other modern devices. That error is now resolved, and both formats are handled correctly.
Many Improvements Under the HoodBeyond the headline changes, this release also includes a number of smaller UI/UX and stability improvements. None of these are big enough to warrant their own section, but together they contribute to a smoother, more reliable experience across the app.
As always, the update is free for existing users of 4K Image Compressor. Make sure you update your current version to 26.0.0 on our website or inside 4K Image Compressor.
Published Aug. 12, 2026
| # | Наименование новости | Тональность | Информативность | Дата публикации |
|---|---|---|---|---|
| 1 | New 4K Tokkit 26.0 Is Here! Experience Improved & Issues Fixed | 0 | 23.44 | 16-07-2026 |
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| 3 | What's New in the 4K YouTube to MP3 26.3.1 Release | 0 | 26.48 | 20-08-2026 |
| 4 | Meet 4K Video Downloader Plus 26.2.0: Smarter Subscriptions, Tidier AI Results & More Updates | 0 | 21 | 07-07-2026 |
| 5 | 4K Video Downloader Plus 26.3.1: Faster Subscription Checks, Steadier YouTube Downloads & a Long List of Fixes | 0 | 21.76 | 20-08-2026 |
| 6 | 4K Video Downloader Plus vs. Downie: Which Is the Best YouTube Downloader for Mac in 2026? | 0 | 6.86 | 22-09-2026 |
| 7 | YouTube Video Quality Explained: Resolutions, Codecs, Bitrates, and How to Save Videos at the Quality You Want | 0 | 15.74 | 15-09-2026 |
| 8 | What Is the Best YouTube Subtitle Downloader in 2026? Best Tools Compared | 0 | 9.52 | 24-09-2026 |
| 9 | Oprema KDE 26.08.1 | 0 | 9.38 | 10-09-2026 |
| 10 | Daily Hacker News for 2026-09-24 | 0 | 11.62 | 25-09-2026 |