• Added full support of Telegram Bot API 4.9
• Fixed user context at poll_answer update (#322)
• Fix Chat.set_description (#325)
• Add lazy session generator (#326)
• Fix text decorations (#315, #316, #328)
• Fix missing InlineQueryResultPhoto parse_mode field (#331)
• Fix fields from parent object in KeyboardButton (#344 fixes #343)
• Add possibility to get bot id without calling get_me (#296)