dotnet-version-check

A GitHub Action that verifies the <InformationalVersion> in your .csproj matches the GitHub Release tag before a release goes out.

Prevents accidentally publishing a release where the tag (e.g. v1.2.0) doesn't match the version baked into the binary (1.1.0).

Usage

name: Release

on:
  release:
    types: [published]

jobs:
  version-check:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Check .NET version matches release tag
        uses: Synalix/dotnet-version-check@v1
        with:
          csproj-path: 'src/MyApp/MyApp.csproj'

Inputs

Input	Required	Description
csproj-path	✅	Relative path to your .csproj file from the repo root

How it works

1. Reads the release tag from GITHUB_REF (e.g. refs/tags/v1.2.0)
2. Strips the leading v if present → 1.2.0
3. Parses <InformationalVersion> from the specified .csproj
4. Fails the workflow with a clear error if they don't match

Example .csproj

<PropertyGroup>
  <InformationalVersion>1.2.0</InformationalVersion>
</PropertyGroup>

Example error output

❌ Version mismatch!
  .csproj InformationalVersion : 1.1.0
  Release tag (normalized)      : 1.2.0
Update <InformationalVersion> in ReWindows/ReWindows.csproj to match the release tag before publishing.

License

MIT