This repository is my personal collection of all legacy server binaries released by Blynk on https://github.com/blynkkk/blynk-server which have now been deleted around September 2022
It does not work with the latest Blynk app, and the Legacy app withdrawn from the app/play stores from 30th June 2022.
Using a local legacy server should be seen as an interim measure, because the server will eventually become vulnerable when support for Java 11 is withdrawn and when the apps no longer run on newer mobile OS releases.
Versions prior to 0.41.17 are certainly affected by security problems of the Log4j2 library (see here)
Latest binary is version 0.41.17
A fork of the source code can be found here: https://github.com/gablau/blynk-server