There has been a major release approximately every four to eight months, with the intention to do so every six months (eventually in March and September, with the intention of aligning it with other free software projects).
There has been a major release approximately every four to eight months, aiming for six-monthly. The Document Foundation intends to release new major versions of LibreOffice once every six months (and to eventually do so in March and September, with the intention of aligning it with other free software projects).