# sniffnet v1.5.1

- Product: sniffnet (https://whatsnew.fyi/product/sniffnet)
- Vendor: GyulyVGC
- Date: 2026-07-22
- Version: v1.5.1
- Original notes: https://github.com/GyulyVGC/sniffnet/releases/tag/v1.5.1
- Permalink: https://whatsnew.fyi/product/sniffnet/releases/v1.5.1

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

---

- **added** — Show latency of connections
- **added** — Add Hungarian translation
- **added** — Add Sinhala translation
- **changed** — Support CIDR ranges in imported IP blacklists
- **changed** — Show number of IP addresses and CIDR ranges in imported IP blacklists
- **changed** — Add relevant keywords to the .desktop file
- **fixed** — Use a thread pool for reverse DNS lookups to avoid stalling hosts resolutions
- **fixed** — Fix unseen hosts and services not appearing dimmed in thumbnail mode
- **fixed** — Fix X-AppImage-Version field in Linux AppImage metadata to correctly reflect the app version
- **fixed** — Fix Linux packages failing to run on distros with glibc older than 2.39

##### New features
- Show latency of connections ([#1194](https://github.com/GyulyVGC/sniffnet/pull/1194) — fixes [#845](https://github.com/GyulyVGC/sniffnet/issues/845))

https://github.com/user-attachments/assets/6915371c-ab28-4d83-ac03-0c45a40fce16

- Added Hungarian translation 🇭🇺 ([#1197](https://github.com/GyulyVGC/sniffnet/pull/1197))
- Added Sinhala translation 🇱🇰 ([#1239](https://github.com/GyulyVGC/sniffnet/pull/1239))

##### Improvements
- Support CIDR ranges in imported IP blacklists ([#1181](https://github.com/GyulyVGC/sniffnet/pull/1181))
- Show number of IP addresses and CIDR ranges in imported IP blacklists ([#1183](https://github.com/GyulyVGC/sniffnet/pull/1183))
- Add relevant keywords to the `.desktop` file ([#1248](https://github.com/GyulyVGC/sniffnet/pull/1248))
- Updated some of the existing translations to v1.5:
  - Ukrainian ([#1039](https://github.com/GyulyVGC/sniffnet/pull/1039))
  - German ([#1122](https://github.com/GyulyVGC/sniffnet/pull/1122))
  - French ([#1123](https://github.com/GyulyVGC/sniffnet/pull/1123))
  - Spanish ([#1140](https://github.com/GyulyVGC/sniffnet/pull/1140))
  - Indonesian ([#1145](https://github.com/GyulyVGC/sniffnet/pull/1145))
  - Swedish ([#1068](https://github.com/GyulyVGC/sniffnet/pull/1068))
  - Greek ([#1175](https://github.com/GyulyVGC/sniffnet/pull/1175))
  - Persian ([#1196](https://github.com/GyulyVGC/sniffnet/pull/1196))
  - Russian ([#1224](https://github.com/GyulyVGC/sniffnet/pull/1224))

##### Fixes
- Use a thread pool for reverse DNS lookups to avoid stalling hosts resolutions (fixes [#1257](https://github.com/GyulyVGC/sniffnet/issues/1257))
- Fix unseen hosts and services not appearing dimmed in thumbnail mode (fixes [#1142](https://github.com/GyulyVGC/sniffnet/issues/1142))
- Fix `X-AppImage-Version` field in Linux AppImage metadata to correctly reflect the app version ([#1174](https://github.com/GyulyVGC/sniffnet/pull/1174) — fixes [#1003](https://github.com/GyulyVGC/sniffnet/issues/1003))
- Fix Linux packages failing to run on distros with `glibc` older than 2.39 (fixes [#1256](https://github.com/GyulyVGC/sniffnet/issues/1256))

##### Thanks to:
- @recallai, @coderabbitai, @ipinfo, @cthulu201, @golanbenoni, @ZEROF, @wahn, @orhun, @3kh0 for [sponsoring Sniffnet](https://github.com/sponsors/GyulyVGC) 💖 
- [NLnet](https://nlnet.nl) for supporting the development of this version via the [NGI Zero Commons Fund](https://nlnet.nl/commonsfund/)
- @ethical-buddy for helping with connections latency
- @pml68 for adding Hungarian translation
- @thambaru for adding Sinhala translation
- @TheMasterOfDisasters for improving the IP blacklist functionality
- @toboil-features for adding keywords to the `.desktop` file
- @DmytroGaiduk, @HiProfession, @Charpy, @FrancoB4, @nubikripto, @Elyrial, @GeorgeLS, @Hurdadd, @EfesX for updating the existing translations

<p>
<picture>
<img alt="" src="https://github.com/GyulyVGC/sniffnet/blob/main/resources/repository/hr.png?raw=true" width="100%"/>
</picture>
</p>

<div align="center">

<h3> Support Sniffnet </h3>

<a href="https://github.com/sponsors/GyulyVGC">
<img alt="" title="Sponsor" src="https://custom-icon-badges.demolab.com/badge/-Sponsor-ea4aaa?style=for-the-badge&logo=heart&logoColor=white"/>
</a>

<h3> Stay in the loop </h3>

<p>
<a href="https://bsky.app/profile/sniffnet.app"><img width="48" height="48" alt="Bluesky" title="Bluesky" src="https://raw.githubusercontent.com/GyulyVGC/sniffnet/main/resources/repository/badges/bluesky.svg"/></a>&nbsp;
<a href="https://www.linkedin.com/company/sniffnet"><img width="48" height="48" alt="LinkedIn" title="LinkedIn" src="https://raw.githubusercontent.com/GyulyVGC/sniffnet/main/resources/repository/badges/linkedin.svg"/></a>&nbsp;
<a href="https://mastodon.social/@sniffnet"><img width="48" height="48" alt="Mastodon" title="Mastodon" src="https://raw.githubusercontent.com/GyulyVGC/sniffnet/main/resources/repository/badges

_[Truncated at 4000 characters — full notes: https://github.com/GyulyVGC/sniffnet/releases/tag/v1.5.1]_