What are the High School Musical movies in order?

Here are the High School Musical movies in order of release:

1. High School Musical (2006)

2. High School Musical 2 (2007)

3. High School Musical 3: Senior Year (2008)

There is also a fourth movie, High School Musical 4: Sharpay's Fabulous Adventure (2011). However, this movie focuses on Sharpay Evans's post-graduation life and is considered a spin-off rather than a direct continuation of the main series.