Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v4, actions/setup-dotnet@v4. Actions will be forced to run with Node.js 24 by default starting June 2nd, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

'PostgresConnection.BeginDbTransactionAsync(IsolationLevel, CancellationToken)': new protected member declared in sealed type

Cannot convert null literal to non-nullable reference type.

The member 'MySqlConnection.BeginTransactionAsync(CancellationToken)' does not hide an accessible member. The new keyword is not required.

'MySqlConnection.BeginDbTransactionAsync(IsolationLevel, CancellationToken)': new protected member declared in sealed type

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).

Possible null reference argument for parameter 'writer' in 'void BuffersExtensions.Write<byte>(IBufferWriter<byte> writer, ReadOnlySpan<byte> value)'.

Dereference of a possibly null reference.

Dereference of a possibly null reference.

Nullability of type of parameter 'value' doesn't match overridden member (possibly because of nullability attributes).