I apologize, but I don't have access to:
1. The original code you want me to update
2. The original specification
3. The list of suggested improvements/bug fixes

Without having these, I cannot provide the updated code you're requesting. Could you please share:
- The initial code that needs updating
- The specification it was following
- The list of improvements I suggested earlier

Once you provide these details, I'll be happy to implement all the suggested changes and return the improved version of the code.