This happens every few months, always with one or two sentences “decoded” and never another peep from the researcher. You should take this with a massive grain of salt.
Importantly, the researchers aren’t saying they’ve deciphered the entire Voynich manuscript. Rather, they’ve identified the language of origin (Hebrew), and a coding scheme in which letters have been arranged in a particular order (alphagram). Kondrak says the full meaning of the text won’t be known until historians of ancient Hebrew have a chance to study the deciphered text.