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Added
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* Support for the Blockchain service
* Support for failing over an autonomous database that has Data Guard enabled in the Database service
* Support for switching over an autonomous database that has Data Guard enabled in the Database service
* Support for git configuration sources in the Resource Manager service
* Support for optionally specifying a VCN id on list operations of DHCP options, subnets, security lists, route tables, internet gateways, and local peering gateways in the Networking service
Fixed
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* Fixed a bug where user-set timeout values were not being passed to base client from service client and remained `None`. This has been fixed in all clients except the upload manager and multipart object assembler.
Breaking
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* Parameter `vcn_id` changed from required to optional in methods `list_dhcp_options`, `list_local_peering_gateways`, `list_route_tables`, `list_security_lists`, `list_subnets` and `list_internet_gateways` in the virtual network client. If the VCN ID is not provided, then the list includes information of all VCNs in the specified compartment.
* For upload manager and multipart object assembler, the timeout for the object storage client is overwritten to `None` for all operations which call object storage. For this reason, the operations are NOT thread-safe, and you should provide the class with its own Object Storage client that isn't used elsewhere.
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