---
title: Log — method and notes | Meridian
description: Meridian's lab log: the published compatibility methodology and how to read build-over-build rating changes.
canonical: https://ps5emulatorwindows.com/log
updated: 2026-10-13
---

# Log

The lab notebook shelf: method first, so every rating change is auditable.

## Facts (2026-10-13)

- **Content:** Methodology; rating changes cite builds
- **Rule:** No silent promotions or drops
- **Evidence:** Build + firmware + driver per run
- **Use:** Audit any rating from here

## What lives here

[Compatibility methodology](/log/compatibility-methodology) is the normative procedure: rig, warm-up, session scope, and promotion thresholds. Every [Compat](/compat) rating traces to a run performed under it.

Read the methodology before disputing a rating. Disputes without build number, firmware version, and driver version are unactionable by construction.

Free build: [Download Meridian](/download). Own your library; method applies equally to all 400+ indexed titles.

## How to read rating changes

- Each change names the build that caused it. Compare runs only within a build.

- Drops indicate confirmed regressions, not opinion shifts.

- Promotions require repeated clean runs — never a single good session.

## FAQ

### Where is the changelog?

Build notes ship with the launcher. This shelf holds the method that makes those notes meaningful.

### How do I dispute a rating?

Reproduce under the published methodology, then report build, firmware, driver, and warmed-cache runs.

### Why publish the method at all?

So ratings are auditable. A rating without a method is marketing; Meridian publishes the method.

## Related

- [Compatibility methodology](https://ps5emulatorwindows.com/log/compatibility-methodology)
- [Status definitions](https://ps5emulatorwindows.com/compat/status-definitions)
- [Stable titles](https://ps5emulatorwindows.com/compat/stable-titles)
- [Compat](https://ps5emulatorwindows.com/compat)
- [Library](https://ps5emulatorwindows.com/library)

## Download

Free Windows app: [Download Meridian](https://ps5emulatorwindows.com/download)

Markdown mirror: https://ps5emulatorwindows.com/log.md