UK citizens: Will my Indian spouse have to apply for an Irish visa for a weekend (I am a British citizen)?

I am a British citizen and my wife is an Indian citizen residing in Great Britain (holder of the Biometric Residence Permit – Permit to Stay of Spouse / Partner).

We are planning a weekend in Ireland in August and we wanted to confirm if you need an Irish visa or not, when traveling with me from Great Britain.

Please advise. Much appreciated. 🙂