fix: events added for important state updates

Description

fix: events added for important state updates

see the guidelines for commit messages.

version: <log entry>

[ ] I have performed a self-review of my own code
[ ] I have documented my code in accordance with the documentation guidelines
[ ] My changes generate no new warnings
[ ] I have added tests that prove my fix is effective or that my feature works
[ ] I have run the unit tests
[ ] I only have one commit (if not, squash them into one commit).
[ ] I have a descriptive commit message that adheres to the commit message guidelines
[ ] I have added version bump label on PR.

Please review the CONTRIBUTING.md file for detailed contributing guidelines.