This is Nishida, an engineer. I'm coming to re:invent, an AWS user conference at LAS VEGAS. This year, two people from ISAO are participating, including me.
Sessions
The conference features a variety of sessions on AWS solutions. Each session has a set level, from introductory to expert, and you can join a session that is tailored to your level. I also participated in the session, so I would like to introduce some of them.
Security & Compliance for Modern Serverless Applications
This session explained the modern security model for applications using AWS Lambda and AWS API Gateway.

The recommended models here were those using AWS Cognito and AWS Secrets Manager. User authentication can be controlled using Cognito and managed in Secrets Manager if you have any sensitive information (such as API keys). Also, don't forget to use AWS Config and AWS Identity and Access Management to monitor resource settings and manage permissions.
Reliable & Scalable Redis in the Cloud with Amazon ElastiCache
This month, we added Redis 5.0 to Amazon ElastiCache. He introduced the performance improvement of ElastiCache and the new data type Stream in Redis 5.0.

It seems that it can be used in the Stream type as it is natural, and it can be scaled out and scaled up.
Conclusion
As I thought when I made a reservation for the session, the session about serverless was still popular and quite full. In particular, sessions related to AWS Fargate and AWS Lambda were almost fully booked.
Keynote
This is an update to new services and solutions, and we would like to introduce some of the contents of this Keynote.

AWS Transit Gateway
Even if different resources are spread across multiple AWS accounts, they can now be routed at a single point with this AWS Transit Gateway. Of course, it is scalable and can manage up to 5000 VPCs, and each attachment can handle up to 50Gbps of burst traffic.
Amazon EC2 A1 Instances
New instances with ARM-based processors "Graviton Processors" have been announced. It is available at a low cost with Amazon's own CPU. It seems to be suitable for containers that scale out.
Firecracker
It is a lightweight virtual machine for serverless computing, open source and published on Github. https://github.com/firecracker-microvm/firecracker
Afterword
I think there are still many new services and solutions announced, so I will continue to investigate!