Opening a Unity 6000.0.24f1 project that uses URP 17.0.3 in Unity 6000.1.0a2 outputs the following error:
Library\PackageCache\com.unity.render-pipelines.universal\Runtime\UniversalRenderPipeline.cs(154,74): error CS0117: ‘ShaderOptions’ does not contain a definition for ‘k_UseDynamicBranchFogKeyword’
PS: I’ve removed the Library and restarted Unity, makes no difference.