Find exactly what breaks before you migrate to Unity 6.x / CoreCLR: 18 audit rules, readiness score and HTML report.Your project. Your deadline. No surprises.Unity 6 is the most disruptive release in years:- Mono is being removed in favor of CoreCLR — reflection-heavy code, P/Invoke and BinaryFormatter break silently.- Fast Enter Play Mode becomes the default — static state that used to reset on every Play now survives it.- The Built-In Render Pipeline is deprecated — Surface Shaders have no upgrade path.Upgrade Sentinel scans your project BEFORE you migrate and tells you exactly which files, lines and settings will cause trouble — with a plain-English explanation of why and what to do about it, plus a readiness score you can track over time.WHAT IT CHECKS (18 rules)- Deprecated APIs: FindObjectOfType, GameObject.Find, graphics format changes- CoreCLR risks: BinaryFormatter, DllImport, debugger attributes, fragile static constructors- Domain-reload safety: mutable static fields, singletons and static events that break under Fast Enter Play Mode- Project settings: scripting backend, Burst embedding, Enter Play Mode options, API compatibility level- Render pipeline: Surface Shaders and materials referencing incompatible built-in shadersHIGHLIGHTS- One-click scan from Window → Upgrade Sentinel, no configuration needed- Click any finding to jump straight to the offending line in your IDE- Readiness score (0–100) to measure progress across sprints, with per-category breakdown- Ignore findings per file; export a full HTML report as a migration baseline- Third-party folders excluded by default- Works on projects that don't even compile — pure syntax analysis, zero project pollution- Runs fully offline; your code never leaves your machineA built-in demo scene generator (Tools → Upgrade Sentinel → Create Demo Scene) lets you see the tool in action in seconds.PERFECT FORSolo devs and small teams planning their Unity 6 / CoreCLR migration, studios auditing legacy projects before an LTS switch, and anyone who has ever lost a week to "it worked before I upgraded".- 18 audit rules across 5 categories: MIG (deprecated APIs), CORE (CoreCLR risks), STAT (domain-reload safety), CFG (project settings), RND (render pipeline readiness)- Readiness score 0-100 with category breakdown and achievable-score hint- Migration target selector (Unity 6.x / Unity 6.8 CoreCLR) — each target gets its own severity policy- Editor window with severity/category filters, live search, Open-in-IDE and Ping navigation- Per-finding documentation links (official Unity/Microsoft pages)- Persistent per-file finding ignores with one click- HTML report export- Path exclusions configurable from the UI- Built-in demo scene generator- Full C# source included; runs 100% offline; supports Unity 2021.3 LTS through Unity 6.xAI tools were used as a development aid: drafting the C# source code (the Roslyn-basedanalysis engine and the editor window UI), generating the build/packaging scripts,and writing the documentation and store copy. All code was designed, reviewed, testedand iterated on by me against two real game projects before release. No AI-generatedart assets are included in the package; all content is original to this product.
