Sourced from moto's changelog.

2.0.9

General Changes:
    * Introduction of a new environment variable: MOTO_S3_DEFAULT_KEY_BUFFER_SIZE
      This allows you to set the in-memory buffer size for multipart uploads. The default size is (and always was) 16MB.
      Exceeding this buffer size will cause the contents to be written/saved to a temporary file.
New Methods:
* API Gateway:
* update_rest_api()
* DynamoDB:
* create_backup()
* delete_backup()
* describe_backup()
* list_backups()
* restore_table_from_backup()
* Events:
* create_api_destination()
* create_connection()
* describe_api_destination()
* list_api_destinations()
* list_connections()
* Logs
* start_query()
Miscellaneous:
* Batch:
* Now uses the exit code of the Docker-container to decide job status
* Supports job-dependencies
* CloudFormation:
* Create/Update support for AWS::ElasticLoadBalancingV2::ListenerRule
* Update support for AWS::ElasticLoadBalancingV2::Listener
* Glacier:
* Vault names can now contain special characters
* MediaPackage:
* describe_channel() now throws a NotFoundException for unknown channels
* Organisations:
* Improve tagging support
* S3:
* Now supports '.' as a metadata character
* S3 Config:
* Fixed the response format for ACLs
* SSM:
* get_parameter() now throws correct exception for unknown parameters/versions
* get_parameters() can now fetch specific versions and labeled parameters
* get_parameter_history() now supports pagination
* Parameter-names can now contain hyphens
* Only the last 100 parameter versions are now kept, as per AWS' behaviour

2.0.8

... (truncated)

• cbeeefb Prep release 2.0.9 (#4007)
• 6977bba Add capability to update AWS::ElasticLoadBalancingV2(Listener and ListenerR...
• 8d4007f Escape Hyphen in Regular Expression (#4006)
• 479ce86 Env variable for default key buffer size (#4001)
• c1b38be Add support for DynamoDB Backup/Restore (#3995)
• 00ccce0 Refactor listener rule ARN generation to avoid collisions (#4002)
• 3f5408c Adding support for ForwardConfig property in ListernRule in CloudFormatio...
• 43426c7 ELBv2 - Simplify tests (#3999)
• ae5653b Media package client error (#3983)
• 9836985 Fix : Logs - Add start_query functionality (#3985)
• Additional commits viewable in compare view

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