How to write a short thank-you letter for changing jobs?

A brief thank you for changing the guard is as follows:

1, thank the leaders for their care and help us grow and progress, thank you for your concern about our work, tolerance for some mistakes, dedication to our posts and so on.

It's really not easy to meet you on such a big earth. Thank God for giving us the fate of this acquaintance. Don't forget, I have been to your world.

Thank you for your concern for me all the time, and let me grow up rapidly in my work. I really want to thank you for making me today!

I feel very honored to work and study under your leadership in the past year. I wish you good health and all the best in the new year.

Thank you for your strong smile, which lit up the corner of rainy day for me. In the following days, I will look forward to the beauty of meeting because of this smile.

Thank you for your help and guidance at work. I wish you good health and all the best in the new year!