Prompt: Latest technology news summary

1. Facebook announced that they are banning ads from cryptocurrency and financial services.

2. Elon Musk announced that SpaceX will start recovering and reuse Falcon 9 rockets.

3. Google released a new algorithm update that is designed to reduce spammy content on its search results.

4. Apple released a new software update for their iPhone that includes new security features.

5. Microsoft released a new update for their Office 365 productivity suite that includes new features for document collaboration.