blindGram 7.0 Beta 3 moved the app to Telegram 6.3.0
On August 10, 2020, blindGram 7.0 Beta 3 opened public testing on Telegram 6.3.0, with no changelog beyond the beta number and Telegram version in the APK name.
This is an archived beta announcement. What this cycle was about was the new Telegram base. Everything blindGram adds for screen reader users sits on top of Telegram's own code, so each move to a newer Telegram means putting those changes back onto the new code and checking, chat by chat, that they still speak and behave as before. A public beta is where that checking happens on real phones with real screen readers, and this build was the first public one for the 6.3.0 base.
The next public build, Beta 7, followed six days later. Its note is at blindGram 7.0 Beta 7, and the release before this cycle was blindGram 6.1.
Betas are still published in @blindGram_BETA2. If you would rather stay on finished releases, the download page always has the current one.