Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4, actions/upload-artifact@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Test methods should not use blocking task operations, as they can cause deadlocks. Use an async test method and await instead. (https://xunit.net/xunit.analyzers/rules/xUnit1031)

Possible null reference argument for parameter 'item' in 'void DataPersist.Write(BinaryWriter writer, object item)'.

The using directive for 'CatDb.Server.Services' appeared previously in this namespace

Dereference of a possibly null reference.

Field 'WTree.Node.StructuralLsn' is never assigned to, and will always have its default value 0

Possible null reference argument for parameter 'item' in 'void IPersist<object>.Write(BinaryWriter writer, object item)'.

Possible null reference argument for parameter 'item' in 'void IPersist<object>.Write(BinaryWriter writer, object item)'.

Possible null reference assignment.

Possible null reference argument for parameter 'type2' in 'DataTransformer<TRecord>.DataTransformer(Type type2, Func<Type, MemberInfo, int>? membersOrder1 = null, Func<Type, MemberInfo, int>? membersOrder2 = null)'.