According to High Court records the dispute between Noel and Dolores has ended and a motion to strike out the case was finalised this august. (apparently it was in July, see update below)

An article published today in the newspaper The Irish Mail just revealed it. The legal action was initiated by Dolores against Noel in 2013 and it has never been clear what the dispute was about and don’t expect to learn more with this short article.
Anyway, that’s good news!!

Thanks to Sara from Cranberries Italia for finding the article

Source: The Irish Mail

UPDATE AUG.31

A new article published on August 31st in the Limerick Leader gives more details :

 A high court action taken by Ms O’Riordan against band mate and song writing partner Noel Hogan, has been struck out. The high court proceedings were filed in October 2013, with the Cause of Action in the filing listed as a ‘declaration’. A motion to strike out the action was made on July 13 of this year, and was finalised three days later. The matter, which neither Cranberries star has ever publicly commented on, was adjourned nine times this year when it came before the court, before the motions were made to strike it out in July.

Source: Limerick Leader