The fifth round of Article 50 negotiations took place between the 9th and 12th October. Following this on the 20th October the European Council concluded that sufficient progress had not been achieved in negotiations in phase one (withdrawal matters) and therefore they could not proceed to phase two (discussing the framework for the future relationship and transitional arrangements).
The European Council said that it would reassess the situation at their next meeting on the 14th and 15th December. Meanwhile, the Council of the European Union and European Commission have been invited to start internal preparatory discussions for phase two.
The next round of Brexit discussions was held on the 9th and 10th November with the government announcing at the end of October that the European Union (Withdrawal) Bill would enter Committee Stage on the 14th November with the debate continuing on the 15th November.
More information about the Brexit Negotiations can be found here: http://in-houseblog.practicallaw.com/brexit-october-round-up/