Dear [Manager's Name],

I am writing to inform you of my decision to resign from my position at [Company Name]. After careful consideration, I have decided that the current lack of opportunities for growth and development in new technologies at the company no longer aligns with my career goals and aspirations.

I have greatly appreciated the opportunities and experiences provided to me during my time here, but I feel that it is in my best interest to pursue other opportunities that will allow me to work with the latest technologies and continue to grow and develop my skills.

I will do my best to ensure a smooth transition during my remaining time with the company. I will complete any unfinished projects, and I will make sure that my responsibilities are properly transferred to my colleagues. I will also make sure that my contact information is readily available in case of any urgent matters that may arise after my departure.

Please let me know if there is anything else I can do to assist during this transition.

Thank you for the time and opportunities that you have provided to me during my tenure at [Company Name].

Sincerely, [Your Name]