# Steam Deck Beta client moves to 64-bit Linux and introduces achievement sets

> **Key takeaway:** The Steam Deck Beta client has transitioned to a 64-bit Linux application running within a Steam Runtime container.

**Published:** 2026-10-16T16:14:30+00:00 
**Source:** Steam Deck HQ (Reviews & Optimizations) 
**Category:** open-gaming 
**Canonical URL:** https://fosswire.org/news/steam-deck-beta-client-moves-to-64-bit-linux-and-introduces-.html 

## Summary
A new Steam Deck Beta client update introduces a major overhaul to the Steam Achievements system, allowing for separate sets for base games and DLC. Additionally, the Linux client has been updated to a 64-bit architecture and now runs inside a Steam Runtime container to improve consistency across different Linux distributions.

## Technical changes in the Steam Deck Beta update
- **64-bit transition**: The Steam client is now a 64-bit application on Linux.
- **Containerization**: The client now runs inside a **Steam Runtime container**, mirroring the technology used by Steam games to ensure distribution consistency.
- **Achievement Sets**: New logic allows grouping achievements by base game, DLC, or seasonal status, with support for archiving old sets.
- **Stability**: Fixes for memory leaks in game streaming and controller code, along with general stability improvements.

## Why it matters
Running the client in a container improves compatibility and behavior consistency across various Linux distributions used by Steam Deck users.