PMSS 2026-01-21 Released – Major Stability & Security Update!

We're proud to announce the release of PMSS 2026-01-21, our largest update ever. After occasional maintenance throughout 2024 and early 2025, intensive development began in September 2025 — resulting in 622 commits touching 490+ files. This release brings substantial improvements to stability, security, documentation, and operational reliability.

Key Benefits for You and Your Users:

  • Seamless Debian Upgrades: Reliable and fully automated support for Debian 11 (Bullseye) and Debian 12 (Bookworm) upgrades from Debian 10.
  • Improved Docker Stability: Enhanced rootless Docker environment ensures better container uptime and fewer operational headaches.
  • Safer and More Reliable Updates: Redesigned updater mechanism with built-in protections, timeouts, and structured logging to prevent disruptions.
  • Enhanced Security Transparency: Two previously identified security vulnerabilities have been completely addressed, documented, and resolved.
  • Comprehensive Documentation: Extensive new documentation covering installation, updates, maintenance, recovery procedures, and architectural decisions.
  • Smooth Operational Experience: Improved overall reliability with preflight checks, bounded command execution, and fail-soft update philosophy.
  • Per-User Resource Limits: Cgroup guardrails with sensible memory floors/caps prevent runaway processes from affecting neighbors.

What's New in This Update:

Multi-Distro Support

  • Official support and smooth transition path for Debian 11 and Debian 12 users.
  • Continued legacy support for Debian 10 with security updates.
  • Native WireGuard kernel module support on Debian 12.

Installer & Updater Overhaul

  • Completely reworked install.sh — TTY detection means prompts work correctly even when piped via wget | bash.
  • Preflight checks catch problems early: disk space, privileges, distro compatibility.
  • Fail-soft updates: bounded execution prevents hangs, individual failures don't abort the whole run.
  • Automation-ready with --dry-run, --non-interactive, --scripts-only flags.

Enhanced Rootless Docker

  • Improved integration and management via systemd.
  • Automatic recovery via watchdog supervision reduces downtime for containerized applications.
  • fuse-overlayfs defaults on legacy kernels for broader compatibility.

Comprehensive Documentation

  • New guides: installation, updates, maintenance procedures, recovery steps.
  • 7 Architecture Decision Records (ADRs) documenting engineering decisions.
  • Full incident reports with root cause analysis and corrective actions.
  • WireGuard VPN setup and peer management documentation.

Proactive Security Measures

How to Upgrade Your Server

Release vs Testing: The release channel is the stable version, tested and recommended for production. The git/main channel tracks bleeding-edge development — useful for testing new features but may contain regressions.

Managed Seedbox Customers:

We progressively roll out updates to ensure reliability. If you'd like your server updated immediately, simply open a support ticket and request:

"Update PMSS to release 2026-01-21"

Self-Hosted & Dedicated Users:

Fresh Install:

wget -qO- https://github.com/MagnaCapax/PMSS/raw/main/install.sh | bash

Update to Stable Release:

/scripts/update.php release

Update to Testing/Bleeding Edge:

/scripts/update.php git/main

Dist-Upgrade (Debian 10→11 or 11→12):

/scripts/update.php --dist-upgrade=11 --tty  # or =12

View Complete Release Notes | Review All 622 Commits

We remain committed to providing the most reliable and secure seedbox experience. Thank you for trusting Pulsed Media.

— The Pulsed Media Team



Thursday, January 22, 2026

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