The developers of Peppermint US have published on your Google+ account that a preliminary version of Peppermint July. If you are unfamiliar with this operating system, say it is a well-designed and lightweight distribution that is based on Ubuntu. The current version is Peppermint 6 and is based on Ubuntu 14.04.2 LTS, the latest Long Term Support version of the operating system developed by Canonical. Apparently, they plan to make the leap to the latest LTS version this summer.
Like other Ubuntu-based distributions such as Elementary OS, Peppermint is a distribution that attempts to upgrade from LTS version to LTS version. Of course, this has its positive side, as they will be versions that will enjoy official support for several years, but as a counterpart we have that will not be compatible with some applications that may launch during the two years between LTS versions (reason for the which I left Elementary and went back to the standard version of Ubuntu).
Peppermint 7 will be based on Ubuntu 16.04 Xenial Xerus
the next a preliminary version will be available on the 30th of Pippermint 7. Now mim is testing the beta version, but this version is only available for a private group. What we would have expected, given that this is an open source project, is for the beta to be public, but they probably don’t want users outside their circle to see some bugs present in the operating system. In any case, we are 10 days away from the release of the preliminary version announced yesterday, so the wait will not be too long.
If you are going to upgrade, keep in mind that you will not be able to upload Peppermint June in Peppermint 7 without removing the previous installation. On the other hand, if you plan to install for the first time, keep in mind that it is only available for 64-bit UEFI computers.