To help you get the exact setup you need, please let me know:
Compatibility with older Android versions · Issue #49 - GitHub
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After the installation is finished, you can open Telegram, enter your phone number, and log into your account as usual. While the interface will look dated, the core messaging features work reliably.
While feature-limited compared to version 10+ on modern Android, the legacy build (typically version or 6.x depending on availability) retains the following: telegram apk for android 4.2.2
If you are trying to install Telegram on an older phone, let me know the you are using. I can check if there are custom ROMs available to update your OS, or help you find the exact legacy client version that fits your device architecture. Share public link
If you find that Telegram lags too much on your old hardware, or if you simply want a more "native" feel to the old OS, there is a specific alternative designed exactly for this scenario. To help you get the exact setup you
A faster alternative client with slicker animations for low-end hardware.