Tumblr is set to migrate its platform to a WordPress-based backend, a move announced by Automattic, the parent company of both services. This transition, involving the transfer of over half a billion blogs, is aimed at enhancing operational efficiency while ensuring that users experience no noticeable changes. Automattic emphasizes that this will not dilute Tumblr's unique offerings, but rather leverage WordPress's stable infrastructure to foster development across both platforms. The technical migration is described as one of the largest in internet history, though Automattic remains confident in its execution, citing past successful transitions by other tech companies. Since acquiring Tumblr in 2019, Automattic has focused on revitalizing the platform and intends to maintain its distinct character while benefiting from shared resources. The exact timeline for the completion of this migration has yet to be announced.