Pure API updates:

• Add class Dice
• Add Bot.send_dice
• Add Message.dice
• Add Message.reply_dice
• Add class BotCommand
• Add Bot.get_my_commands
• Add Bot.set_my_commands
• Add Bot.commands property
• Add parameter tgs_sticker to Bot.create_new_sticker_set
• Add parameter tgs_sticker to Bot.add_sticker_to_set
• Add StickerSet.thumb
• Add Bot.set_sticker_set_thumb
• Add warning about changed parameter order for Bot.create_new_sticker_set and Bot.add_sticker_to_set to release notes

My suggestions for according new functionality:

• Add Filters.dice to filter messages containing a dice
• Allow Filters.dice(1) and Filters.dice([1, 5]) to filters for dices with specific values
• Somehow allow to treat a dice message as text message with the corresponding emoji via Filters.text and Message.effective_message?
• Maybe add a description attribute to CommandHandler and a method Dispatcher.set_bot_commands that automatically sets the bot commands by retrieving them from the registered handlers?