Yes, MR16 halogen bulbs are being phased out in many countries, including the United States, the European Union, and Canada. This is because halogen bulbs are inefficient and produce a lot of heat. LED MR16 bulbs are a more efficient and environmentally friendly alternative.
The European Union has banned the sale of new halogen MR16 bulbs since September 2016. The United States and Canada are expected to follow suit in the coming years.
If you are looking for a new MR16 bulb, then an LED bulb is the best option. LED MR16 bulbs are more efficient, produce less heat, and last longer than halogen MR16 bulbs. They can also be dimmed, which halogen MR16 bulbs cannot.