My favorite pre:Invent announcements so far [Thread
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Amazon Comprehend Events https://aws.amazon.com/about-aws/whats-new/2020/11/aws-announces-launch-of-amazon-comprehend-events/
Piped Processing Language (PPL) for Amazon Elasticsearch Service https://aws.amazon.com/about-aws/whats-new/2020/11/amazon-elasticsearch-service-introduces-piped-processing-language-ppl/
Synchronous Express Workflows for AWS Step Functions https://aws.amazon.com/about-aws/whats-new/2020/11/aws-step-functions-now-supports-synchronous-express-workflows-/
Location-Based Notifications for Amazon Pinpoint https://aws.amazon.com/about-aws/whats-new/2020/11/introducing-location-based-notifications-using-amazon-pinpoint/
AWS CloudFormation Modules https://aws.amazon.com/about-aws/whats-new/2020/11/announcing-modules-for-aws-cloudformation/
Amazon Managed Workflows for Apache Airflow (MWAA) https://aws.amazon.com/about-aws/whats-new/2020/11/introducing-amazon-managed-workflows-for-apache-airflow-mwaa/
Amazon Kinesis Data Streams to capture item-level changes in your Amazon DynamoDB tables https://aws.amazon.com/about-aws/whats-new/2020/11/now-you-can-use-amazon-kinesis-data-streams-to-capture-item-level-changes-in-your-amazon-dynamodb-table/
Code Signing fpr AWS Lambda https://aws.amazon.com/about-aws/whats-new/2020/11/announcing-code-signing-a-trust-and-integrity-control-for-aws-lambda/
Context management for Amazon Lex https://aws.amazon.com/about-aws/whats-new/2020/11/announcing-context-management-on-amazon-lex/
Cross-account backups with AWS Backup and AWS Organizations https://aws.amazon.com/about-aws/whats-new/2020/11/aws-backup-enables-aws-organizations-bring-cross-account-backup-feature/
Amazon API Gateway integration for AWS Step Functions https://aws.amazon.com/about-aws/whats-new/2020/11/aws-step-functions-supports-amazon-api-gateway-service-integration/
Amazon Athena engine version 2 https://aws.amazon.com/about-aws/whats-new/2020/11/amazon-athena-announces-availability-of-engine-version-2/
Amazon Lightsail Containers https://aws.amazon.com/about-aws/whats-new/2020/11/announcing-amazon-lightsail-containers/
Amazon Lex support for French, Spanish, Italian and Canadian French https://aws.amazon.com/about-aws/whats-new/2020/11/amazon-lex-adds-language-support-for-french-spanish-italian-and-canadian-french/
AWS Glue DataBrew https://aws.amazon.com/about-aws/whats-new/2020/11/introducing-aws-glue-databrew-visual-data-preparation-tool-to-clean-and-normalize-data-up-to-80-percent-faster/
Amazon DynamoDB table data export to Amazon S3 https://aws.amazon.com/about-aws/whats-new/2020/11/now-you-can-export-your-amazon-dynamodb-table-data-to-your-data-lake-in-amazon-s3-to-perform-analytics-at-any-scale/