The final playscript edition of Harry Potter and the Cursed Child was released on 25 July 2017. It contained only minor changes from the “Special Rehearsal Edition Script”, which had been released on 31 July 2016, the day after the play’s opening in London.
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Pottermore: Harry Potter and the Cursed Child
The theatre production opened in the West End of London at the Palace Theatre on 30 July 2016: Harry Potter and the Cursed Child, Parts One and Two