# Proton VPN v4.16.4

- Product: Proton VPN (https://whatsnew.fyi/product/proton-vpn-gtk-app)
- Vendor: Proton AG
- Date: 2026-05-21
- Version: v4.16.4
- Original notes: https://github.com/ProtonVPN/proton-vpn-gtk-app/releases/tag/v4.16.4
- Permalink: https://whatsnew.fyi/product/proton-vpn-gtk-app/releases/v4.16.4
- Labels: Machine-generated from commit messages — the vendor published no release notes

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'.

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- **added** — Enable packet capture.
- **fixed** — Red fonts on VPN error and connection error in Ubuntu 22.
- **fixed** — Migrate to new signal connection system to mitigate leaks and repair broken signals and port forwarding popover removal.