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. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Non-nullable property 'User' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Possible null reference return.

Non-nullable property 'UpdatedByUser' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the property as nullable.

Argument of type 'List<User?>' cannot be used for parameter 'users' of type 'List<User>' in 'Task<(Dictionary<int, long>, Dictionary<int, long>)> UserStatsRanksService.GetUsersRanks(List<User> users, GameMode mode, CancellationToken ct = default(CancellationToken))' due to differences in the nullability of reference types.

Dereference of a possibly null reference.

Possible null reference argument for parameter 's' in 'DateTime DateTime.Parse(string s)'.

Possible null reference return.

Possible null reference return.

'OsuVersion' defines operator == or operator != but does not override Object.GetHashCode()