Qt 6 ( LGPL) and Qt 5.15 ( LGPL) slightly patched.Version 1.8.15 was the last that supports older systems

Version 2.4.4 was the last that supports older systems Telegram Messenger is a globally accessible freemium, cross-platform, encrypted, cloud-based and centralized instant messaging (IM) service. Windows 7 and above (32 bit) ( portable) Launched in 2018, this cryptocurrency is based on multi-blockchain Proof-of-Stake system TON (Telegram Open Network, after 2021 The Open Network).One of the world's top 10 most downloaded apps with over 500 million active users. Pure instant messaging simple, fast, secure, and synced across all your devices. Windows 7 and above (64 bit) ( portable) Download Telegram Messenger and enjoy it on your iPhone, iPad, and iPod touch.The source code is published under GPLv3 with OpenSSL exception, the license is available here. This is the complete source code and the build instructions for the official Telegram messenger desktop client, based on the Telegram API and the MTProto secure protocol.

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