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Is it safe to update Steam Deck (SteamOS)?

Likely safeLooking good. Skim the notes, then go.

SteamOS and Steam client updates can break Decky Loader's injection into the Steam UI; plugins wait on Decky.

Verdict for SteamOS 3.8.28

No sign of trouble with SteamOS 3.8.28. Decky hasn’t named this patch in a release, but there’s either a newer release or no breakage reports since. Probably fine — skim the notes before updating.

Latest Stable
SteamOS 3.8.28
Released
2026-09-25
Source
SteamOS 3.8.28
Beta
SteamOS 3.9.2 Beta · 2026-09-25 · not counted in the verdict
Preview
SteamOS 3.9.1 Preview · 2026-09-14 · not counted in the verdict
Data refreshed
2026-10-15 (UTC)

Frameworks & loaders

Decky Loader

Likely safe
v3.2.102026-10-04 · source
Why?

Latest release is newer than patch SteamOS 3.8.28, but notes do not explicitly mention that version.

SteamGridDB (Decky plugin)

Not affected by patches
1.8.12026-10-07 · source
Why?

Plugin runs inside Decky Loader; it follows Steam client UI changes, not SteamOS builds, and updates via the Decky store. Latest: Latest release is newer than patch SteamOS 3.8.28, but notes do not explicitly mention that version.

CSS Loader (Decky plugin)

Not affected by patches
2.1.22024-07-06 · source
Why?

Plugin runs inside Decky Loader; themes can drift with Steam client UI changes, not SteamOS builds. Latest: Latest release predates patch SteamOS 3.8.28; compatibility is unverified — check the project page.

ProtonDB Badges (Decky plugin)

Not affected by patches
1.3.42026-10-14 · source
Why?

Plugin runs inside Decky Loader; it follows Steam client UI changes, not SteamOS builds. Latest: Latest release is newer than patch SteamOS 3.8.28, but notes do not explicitly mention that version.

PowerTools (Decky plugin)

Not affected by patches
2.0.32024-06-18 · source
Why?

Plugin runs inside Decky Loader; hardware-level settings rarely depend on the SteamOS point release. Latest: Latest release predates patch SteamOS 3.8.28; compatibility is unverified — check the project page.

Statuses are inferred from public release data (Steam news, GitHub, Thunderstore, Mojang/Fabric/Forge/NeoForge/Modrinth APIs). They are not guarantees — verify on each project's page before updating. Items marked “Check manually” are not counted in the verdict.

Patch history

Full history →

SteamOS 3.8.28

2026-09-25 · SteamOS 3.8.28

  • Likely safe Decky v3.2.10
  • Not affected by patches SteamGridDB 1.8.1
  • Not affected by patches CSS Loader —
  • Not affected by patches ProtonDB Badges 1.3.4
  • Not affected by patches PowerTools —

SteamOS 3.8.16

2026-07-17 · SteamOS 3.8.16

  • Likely safe Decky v3.2.8
  • Not affected by patches SteamGridDB 1.8.1
  • Not affected by patches CSS Loader —
  • Not affected by patches ProtonDB Badges 1.3.4
  • Not affected by patches PowerTools —

SteamOS 3.8.15

2026-07-15 · SteamOS 3.8.15

  • Likely safe Decky v3.2.8
  • Not affected by patches SteamGridDB 1.8.1
  • Not affected by patches CSS Loader —
  • Not affected by patches ProtonDB Badges 1.3.4
  • Not affected by patches PowerTools —

SteamOS 3.8.14

2026-07-04 · SteamOS 3.8.14

  • Likely safe Decky v3.2.8
  • Not affected by patches SteamGridDB 1.8.1
  • Not affected by patches CSS Loader —
  • Not affected by patches ProtonDB Badges 1.3.4
  • Not affected by patches PowerTools —

Steam Deck news

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Steam Deck modding FAQ

Is it safe to update Steam Deck (SteamOS) with mods?

Current verdict: Likely safe. No sign of trouble with SteamOS 3.8.28. Decky hasn’t named this patch in a release, but there’s either a newer release or no breakage reports since. Probably fine — skim the notes before updating. Latest patch tracked: SteamOS 3.8.28 (2026-09-25).

Why do Steam Deck (SteamOS) mods break after a patch?

SteamOS and Steam client updates can break Decky Loader's injection into the Steam UI; plugins wait on Decky.

Which Steam Deck (SteamOS) frameworks does ModSafe track?

Automatically: Decky Loader, SteamGridDB (Decky plugin), CSS Loader (Decky plugin), ProtonDB Badges (Decky plugin), PowerTools (Decky plugin).

What do the status labels mean?

Safe
A release explicitly supports the current patch (release notes, the maintainer's official page, or a stable build for that version).
Likely safe
Released after the patch without naming it, or the patch is over a week old with no breakage reports.
Just patched, wait
The patch is under 7 days old and the framework hasn't updated yet.
Breakage reported
Open issues on the project's tracker say it broke after the patch.
Not ported yet
Minecraft: no build exists for that version yet.
Not affected by patches
Version-agnostic tools (mod managers, generic loaders). Not counted in the verdict.
Check manually
Nexus-only mods we can't track automatically. Not counted in the verdict.

Where does the data come from?

Game patches come from official Steam announcements (app 1675200). Framework data comes from public release APIs (GitHub, Thunderstore, Fabric/Forge/NeoForge meta, Modrinth). ModSafe does not scrape Nexus Mods or SteamDB.