The Russian Federation at October 26 handed over a parcel with information on MH17 to the Dutch embassy in Moscow. The parcel possibly contains the raw primary radar data as shown by the Russian Ministry of Defense at September 26 2016. This was told by Dutch minister of Justice and Safety at October 26.
According the Russian prosecutor, Prokuratura, the parcel contains the primary radar data.
Update: october 27: Russia confirmed it handed over radar data (source)