Organization for Let’s Encrypt warned that smartphones running Android below version 7.1.1 will no longer maintain its root certificates issued since 2021.
Let’s Encrypt stop cross-signing of these default certificates on January 11, 2021, and the complete cessation of the partnership in this regard on September 1 of that year.
A partial solution would be to install the Firefox browser (Mozilla is a partner of Let’s Encrypt) and use its certificate store, but this won’t work with other clients.
It should be noted that the termination of support for outdated versions of the search engine is a common practice among developers. However, this can lead to a number of problems. In particular, the loss of access to a number of sites.
Let’s Encrypt estimates that around 33.8% of Android users on Google Play are running OS versions earlier than 7.1.1.
