AWS API Changes

2026/08/25 - Amazon Elastic Compute Cloud - 7 updated api methods

Changes Fleet feature to support Capacity Reservation Resource Groups with Amazon EC2 Capacity Blocks and interruptible Capacity Reservations

CreateFleet (updated)

Link ¶
Changes (request)

{'ReservedCapacityOptions': {'AllocationStrategy': 'prioritized',
                             'CapacityReservationTarget': {'CapacityReservationIds': ['string'],
                                                           'CapacityReservationResourceGroupArns': ['string']},
                             'ReservationTypes': {'capacity-block',
                                                  'on-demand-capacity-reservation'},
                             'ReservedCapacityFallbackOptions': {'MarketTypes': ['on-demand']}}}

CreateLaunchTemplate (updated)

Link ¶
Changes (request)

{'LaunchTemplateData': {'InstanceMarketOptions': {'MarketType': {'on-demand'}}}}

CreateLaunchTemplateVersion (updated)

Link ¶
Changes (request, response)
Request

{'LaunchTemplateData': {'InstanceMarketOptions': {'MarketType': {'on-demand'}}}}

Response

{'LaunchTemplateVersion': {'LaunchTemplateData': {'InstanceMarketOptions': {'MarketType': {'on-demand'}}}}}

DescribeFleets (updated)

Link ¶
Changes (response)

{'Fleets': {'ReservedCapacityOptions': {'AllocationStrategy': 'prioritized',
                                        'ReservationTypes': {'capacity-block',
                                                             'on-demand-capacity-reservation'},
                                        'ReservedCapacityFallbackOptions': {'MarketTypes': ['on-demand']}}}}

DescribeLaunchTemplateVersions (updated)

Link ¶
Changes (response)

{'LaunchTemplateVersions': {'LaunchTemplateData': {'InstanceMarketOptions': {'MarketType': {'on-demand'}}}}}

GetLaunchTemplateData (updated)

Link ¶
Changes (response)

{'LaunchTemplateData': {'InstanceMarketOptions': {'MarketType': {'on-demand'}}}}

RunInstances (updated)

Link ¶
Changes (request)

{'InstanceMarketOptions': {'MarketType': {'on-demand'}}}