The Nano Node v15 and v15.1 were not formally announced but the v15.2 is here. Earlier versions were downloaded by users resulting in the local files nanocurrency / nano:V15.0 or nanocurrency / nano: V15.1. And since the files would have had to be manually cleared in a v15.0 re-release, the version number was changed to 15.2.
One of the main features of the Nano Node v15.2 was ability to change to vote by hash. In older versions, each representatives vote included the full block, which is a total of 256 bytes + 64 bytes for the representative’s signature. When this feature is activated, the votes will only include the block hash, which results in votes being 32 bytes + 64 bytes for the signature.
This feature will, however be activated on 1st of September 2018 at UTC+0. One must update their Nano Node software before this very date as other versions will not be compatible anymore.
Full changelog of Nano Node v15.2.
Updated rep_weights.bin for bootstrap weights.
Do not vote if voting is disabled in config.
Ensure full blocks are not generated by “compute_rep_votes”.
Here are the hashes.
You can download Nano Node v15.2 from here.