The Netherlands State Institute for War Documentation Publishes the "Critical Edition" of Anne Frank's Diary
In 1986, the Netherlands State Institute for War Documentation published the "Critical Edition" of the diary.
It includes comparisons from all known versions, both edited and unedited. It also includes discussion asserting its authentication, as well as additional historical information relating to the family and the diary itself.
Otto Frank dedicated his life to the diary and his daughter’s legacy. In his will he left the diary to the Netherlands State Institute for War Documentation and the diary’s copyright to the Anne Frank Fund in Basel, which has been administered by the Frank family since Otto’s death in 1980. In 1981, the institute submitted the diary to a Dutch government laboratory for an examination that lasted several years. Meanwhile, an exhibition called “Anne Frank in the World” continues to tour the world after being shown in more than thirty countries. In 1986, the Netherlands State Institute published a critical edition of the diary that compared the wording of the diary and examined the handwriting, the type of paper and the ink. This edition, later termed “The Definitive Edition,” is the most significant and complete and serves as the basis for research and comparison with the other editions, which are less complete (and is the source of quotations in this entry).
Anne Frank at the Holocaust Encyclopedia