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Period: to 2025 BCE
Telegram
Telegram iOS release; Android followed in October
telegram. Secure cloud chats, stickers, media sharing. -
Photos and Voice message
Telegram introduces uncompressed photos and voice messages. -
Voice Calls
Introduced end‑to‑end encrypted voice calls -
Video Calls & Group Chats
One‑on‑one video calls launched -
Mini Apps Rise
Bot API 7.8: Introduced “Main Mini Apps” preview launch feature -
Major Bot API & Mini App Enhancements
-Persistent secure local storage (Device Storage, Secure Storage)
-Full‑screen Mini Apps, geolocation, accelerometer, emoji status -
Bot API 9.1:
Added hideKeyboard, checklists, gifts, and more WebApp enhancements