Released On	Description
2023-05-26	This release incorporates the following changes: Added the following section: Added information about cloning a security group in Cloning a Security Group.
2023-05-17	This release incorporates the following changes: Updated the following content: Modified the procedure for viewing monitoring metrics in Viewing Metrics.
2023-04-28	This release incorporates the following changes: Updated the following content: Modified the links of sections "Binding an EIP" and "Unbinding an EIP" in Assigning an EIP and Binding It to an ECS and Unbinding an EIP from an ECS and Releasing the EIP.
2023-04-20	This release incorporates the following changes: Updated the following content: Added description that BMS user-defined network is available only in eu-de. Added the step for viewing NIC details to Disabling Source and Destination Check (HA Load Balancing Cluster Scenario).
2023-02-15	This release incorporates the following changes: Updated the following content: Modified links in What Is Virtual Private Cloud? and Can I Bind an EIP to Multiple ECSs?.
2023-01-10	This release incorporates the following changes: Updated the following content: Modified steps in Subnet and Elastic IP.
2022-12-12	This release incorporates the following changes: Updated the following content: Added description that EIPs of the Dedicated Load Balancer (5_gray) type cannot be created in Step 3: Assign an EIP and Bind It to an ECS, Assigning an EIP and Binding It to an ECS, and Can I Bind an EIP to Multiple ECSs?.
2022-11-15	This release incorporates the following changes: Added support for binding and unbinding EIPs of the Dedicated Load Balancer (5_gray) type using APIs in Step 3: Assign an EIP and Bind It to an ECS, Assigning an EIP and Binding It to an ECS, and Unbinding an EIP from an ECS and Releasing the EIP.
2022-10-20	Modified the following content: Modified the bandwidth range in What Is the Bandwidth Size Range?
2022-09-07	Added the following content: Added description about binding EIPs of the dedicated load balancer (5_gray) type to load balancers in Assigning an EIP and Binding It to an ECS. Added description about binding EIPs of the dedicated load balancer (5_gray) type to load balancers in Unbinding an EIP from an ECS and Releasing the EIP.
2022-06-25	Added the following content: Modified constraints on EIPs dedicated for dedicated load balancers in Assigning an EIP and Binding It to an ECS. Modified constraints on EIP binding to load balancers in Unbinding an EIP from an ECS and Releasing the EIP.
2022-02-15	Added the following content: Added constraints on EIPs dedicated for dedicated load balancers in Assigning an EIP and Binding It to an ECS. Added description about the default reverse domain name of an EIP in Step 3: Assign an EIP and Bind It to an ECS and Assigning an EIP and Binding It to an ECS. Added constraints on EIPs dedicated for dedicated load balancers in Assigning an EIP and Binding It to an ECS and Adding EIPs to a Shared Bandwidth.
2021-08-25	Modified the following content: Deleted content about IP address groups.
2021-06-18	Modified the following content: Updated screenshots and deleted the Bandwidth Type parameter in Step 3: Assign an EIP and Bind It to an ECS and Assigning an EIP and Binding It to an ECS.
2021-05-10	Added the following content: Added constraints on EIPs dedicated for dedicated load balancers in Assigning an EIP and Binding It to an ECS.
2021-05-08	Added the following content: Added description about the default reverse domain name of an EIP in Assigning an EIP and Binding It to an ECS. Added description about modifying a dedicated bandwidth or shared bandwidth in Modifying an EIP Bandwidth.
2021-03-16	Added the following FAQ: What Bandwidth Types Are Available? What Are the Differences Between a Dedicated Bandwidth and a Shared Bandwidth? Can a Dedicated Bandwidth Be Changed to a Shared Bandwidth or the Other Way Around?
2020-12-16	This release incorporates the following changes: Deleted the restriction on the number of ECS NICs for SNAT in Are There Any Restrictions on Using a Route Table? Added the procedure for binding a virtual IP address to an ECS in Binding a Virtual IP Address to an EIP or ECS. Added description about enabling ports 465 and 587 for Mail BGP EIPs in Assigning an EIP and Binding It to an ECS. Modified or added content in Notes and Constraints.
2020-07-28	Modified the following content: Changed the maximum number of tags that can be added to 20 in Managing VPC Tags and Managing Subnet Tags.
2020-05-30	Added the following content: Added basic information to Security Group Overview and Firewall Overview. Modified the following content: Added rules in Firewall Configuration Examples. Modified Does a Security Group Rule or a Firewall Rule Immediately Take Effect for Existing Connections After It Is Modified? Modified Why Can't I Delete My VPCs and Subnets?
2020-02-25	Added the following content: Added Shared Bandwidth. Modified the following content: Modified steps in Elastic IP.
2020-02-12	Added the following content: Added description that VPC flow logs support S2 ECSs in VPC Flow Log.
2020-01-08	Added the following content: Added function and namespace description and optimized information in tables in Supported Metrics. Added Region and AZ. Added the example of allowing external access to a specified port in Security Group Configuration Examples. Modified the following content: Added Subnet and VPC as the type of resources whose traffic is to be logged in VPC Flow Log. Updated screenshots in Adding a Security Group Rule and Fast-Adding Security Group Rules. Optimized figure examples in this document. Optimized descriptions in Firewall Configuration Examples. Optimized descriptions in Firewall Overview. Changed the position of Security. Optimized What Is a Quota? Deleted the following content: Deleted section "Deleting a VPN".
2020-03-06	Modified the following content: Modified the steps in Assigning an EIP and Binding It to an ECS, Elastic IP, and Shared Bandwidth. Updated screenshots in Modifying a Shared Bandwidth. Updated screenshots and parameter description in Creating a Subnet for the VPC. Modified steps in Assigning a Virtual IP Address, Binding a Virtual IP Address to an EIP or ECS, and Releasing a Virtual IP Address. Updated screenshots in VPC Peering Connection. Modified description in How Many Routes Can a Route Table Contain?
2019-12-13	Added the following content: Added restrictions on ports and port ranges in Security Group Overview. Added description about IP address groups in Importing and Exporting Security Group Rules. Added impacts caused by IP address group modification or deletion in "Managing an IP Address Group". Modified the following content: Modified description and value examples of the port and source in Step 4: Add a Security Group Rule and Adding a Security Group Rule. Optimized note description in Importing and Exporting Security Group Rules. Changed firewall to firewalls in Creating a Firewall. Optimized description about the scenario in Changing the Sequence of a Firewall Rule. Optimized description about the scenario in Creating an Alarm Rule. Updated screenshots in Adding a Security Group Rule and Fast-Adding Security Group Rules. Optimized figure examples in this document. Optimized descriptions in Firewall Configuration Examples. Optimized descriptions in Firewall Overview. Changed the position of Security. Deleted the following content: Deleted section "Deleting a VPN".
2019-11-29	Added the following content: Added section "IP Address Group". Added port format and IP address group when configuring security group rules in Adding a Security Group Rule. Added function and namespace description and optimized information in tables in Supported Metrics. Added Region and AZ. Modified the following content: Optimized What Is a Quota?
2019-11-05	Modified the following content: Added Subnet and VPC as the type of resources whose traffic is to be logged in VPC Flow Log.
2019-08-30	Added the following content: Added the example of allowing external access to a specified port in Security Group Configuration Examples. Added description that EIP type cannot be changed in Step 3: Assign an EIP and Bind It to an ECS and Assigning an EIP and Binding It to an ECS.
2019-08-23	Modified the following content: Optimized description about NTP Server Address in Modifying a Subnet. Added the following content: Added descriptions about route types in Route Table.
2019-08-16	Added the following content: Added Exporting Route Table Information.
2019-08-09	Added the following content: Added parameters Type and Bandwidth Type to Step 3: Assign an EIP and Bind It to an ECS and Assigning an EIP and Binding It to an ECS. Added description about how to replicate multiple routes in Replicating a Route. Added the description about Next Hop Type in Adding a Custom Route. Modified the following content: Modified description about NTP Server Address in Modifying a Subnet. Modified description about replication in the "Default Route Table and Custom Route Table" part in Route Table Overview. Modified descriptions about system routes and custom routes in Route Table Overview. Modified description about usage restrictions in Route Table Overview. Deleted the following content: Deleted parameter Enterprise Project from the document. Deleted the Cloud Connect service from the "Default Route Table and Custom Route Table" part in Route Table Overview.
2019-08-02	Added the following content based on the RM-584 requirements: Added subnet parameter description in Modifying a Subnet. Modified the following content based on the RM-584 requirements: Added prerequisites in Releasing a Virtual IP Address. Optimized description about scenarios and prerequisites in Deleting a Subnet.
2019-07-22	Added the following content: Added Enabling or Disabling VPC Flow Log.
2019-06-04	Optimized the description in the following sections: What Is an EIP? Step 2: Create a Subnet for the VPC Creating a Subnet for the VPC Route Table Virtual IP Address Virtual IP Address Overview
2019-05-31	Modified the following sections related to subnets and route tables based on the RM-584 requirements: Route Table Modifying a VPC Creating a Subnet for the VPC Modifying a Subnet Managing Subnet Tags Creating a VPC Peering Connection with Another VPC in Your Account Creating a VPC Peering Connection with a VPC in Another Account Viewing Routes Configured for a VPC Peering Connection
2019-05-29	Added the following content: Added a note in Deleting a VPC Flow Log. Added a note about changing the NTP server address in Modifying a Subnet. Modified the following content: Modified description about NTP Server Address in Creating a VPC, Creating a Subnet for the VPC, and Modifying a Subnet.
2019-05-24	Modified the following content: Deleted description about DHCP in What Is Virtual Private Cloud?. Modified description about NTP Server Address in Creating a VPC, Creating a Subnet for the VPC, and Modifying a Subnet. Optimized Elastic IP. Updated the description and screenshot in Creating a VPC Peering Connection with Another VPC in Your Account and Creating a VPC Peering Connection with a VPC in Another Account based on the latest management console page. Updated sections VPC Flow Log Overview and Creating a VPC Flow Log. Added the following content: Added description about Advanced Settings and updated screenshots in Creating a VPC and Creating a Subnet for the VPC. Added "Obtaining the Peer VPC ID" in Creating a VPC Peering Connection with a VPC in Another Account. Added two precautions in Virtual IP Address Overview.
2019-04-28	Modified the following content: Modified the incorrect word spelling in Viewing a VPC Flow Log.
2019-04-25	Added the following content: Added a note in Creating a VPC Flow Log. Added the description about no VPC flow log records in Viewing a VPC Flow Log. Added Security Group Configuration Examples. The security group configuration examples are integrated into one section and the original independent sections are deleted. Modified the following content: Modified description information about Enterprise Project. Optimized Service Overview and added the product advantage description to What Is Virtual Private Cloud? Modified the description about how to switch to the EIPs page in Elastic IP. Modified the description about how to switch to the Shared Bandwidths page in Shared Bandwidth. Deleted the following content: Deleted "What Is a Security Group?", "Which Protocols Does a Security Group Support?", "What Are the Functions of the Default Security Group Rule?", and "How Can I Configure Security Group Rules?" in FAQ.
2019-04-17	Accepted in OTC-4.0/Agile-04.2019.
2019-04-12	Modified the following content: Modified the description for DNS Server Address in Creating a VPC, Creating a Subnet for the VPC, and Modifying a Subnet. Added the following content: Added the note about Resource in Creating a VPC Flow Log.
2019-04-10	Modified the following content: Added the description about log-status in Viewing a VPC Flow Log.
2019-03-30	Added the following content: Added the Enterprise Project parameter in Creating a VPC, Creating a Security Group, and Assigning an EIP and Binding It to an ECS. Added Shared Bandwidth. Deleted the following content: Deleted the concepts of VPN, IPsec VPN, remote gateway, remote subnet, region, and project in Basic Concepts. Deleted the FAQs related to VPN in FAQ. Deleted the content related to "Configuring a VPC for ECSs That Access the Internet Through a VPN" in Getting Started. Modified the following content: Updated console screenshots. Optimized the description in section "Security Group Configuration Examples". Added the support for S2 ECSs in VPC Flow Log Overview.
2019-03-18	Modified the following content: Modified the example description in Viewing a VPC Flow Log. Modified steps in Creating a VPC Flow Log. Added the following content: Added use restrictions in VPC Flow Log Overview. Updated the console screenshots in Deleting a VPC Flow Log.
2019-03-01	Added the following content: Added Document Usage Instructions.
2019-02-27	Added the following content: Added screenshots and examples in Viewing a VPC Flow Log. Modified the following content: Modified description about the scenario in Deleting a VPC Flow Log.
2019-02-25	Added the following content: Added VPC Flow Log. Deleted the following content: Deleted the concepts of VPN, IPsec VPN, remote gateway, remote subnet, region, and project in Basic Concepts. Deleted the FAQs related to VPN in FAQ. Deleted the content related to "Configuring a VPC for ECSs That Access the Internet Through a VPN" in Getting Started. Modified the following content: Optimized Service Overview and added the product advantage description to What Is Virtual Private Cloud? Added Security Group Configuration Examples. The security group configuration examples are integrated into one section and the original independent sections are deleted. Modified the description about how to switch to the EIPs page in Elastic IP.
2019-02-23	Added the following content: Added the description about batch subnet creation in VPC and Subnet. Added precautions about disabling a firewall in Enabling or Disabling a Firewall.
2019-02-22	Added the following content: Added the Assign EIP screenshot in Assigning an EIP and Binding It to an ECS.
2019-02-15	Added the following content: Added the Anti-DDoS service restriction in How Does an IPv6 Client on the Internet Access the ECS That Has an EIP Bound in a VPC? Added Modifying a Security Group.
2019-02-11	Deleted the following content: Deleted the console screenshot from Assigning an EIP and Binding It to an ECS.
2019-01-31	Accepted in OTC-4.0.
2019-01-30	Modified the following content: Modified the table listing the parameters for creating a VPC in VPC and Subnet. Modified the table listing the parameters for modifying a security group rule in Adding a Security Group Rule. Added the link to the default security group rule introduction in Adding a Security Group Rule. Modified the format of the exported file to Excel in Exporting VPC List and Importing and Exporting Security Group Rules. Changed the number of characters allowed for the Description field to 255 in Creating a Firewall. Modified steps in Managing EIP Tags. Added the Monitoring Period column to the table listing metrics in Supported Metrics. Changed the maximum bandwidth size allowed to 1000 Mbit/s in What Is the Bandwidth Size Range? Modified the table listing subnet parameters in Modifying a Subnet. Updated the security group description in Security Group. Updated the VPC peering connection description in VPC Peering Connection. Updated firewall description in Firewall. Updated console screenshots in Adding a Firewall Rule. Updated console screenshots in Modifying a Firewall Rule. Added the following content: Added Security Group Configuration Examples. Added Modifying an EIP Bandwidth. Added description about disassociating and releasing multiple EIPs at a time in Unbinding an EIP from an ECS and Releasing the EIP. Deleted the following content: Deleted description about the Reject action from Adding a Firewall Rule.
2018-12-30	Modified the following content: Modified description about how to switch to the security group and firewall pages based on the changes made on the management console. Added the following content: Added section Firewall Overview. Added section Firewall Configuration Examples.
2018-11-30	Added the following content: Added parameter NTP Server Address to the description about how to create a subnet. Modified the following content: Updated the document based on changes made to the firewall console pages. Added description about how to delete multiple firewall rules at a time and how to disassociate multiple subnets from a firewall at a time. Changed parameter Any to All.
2018-09-18	Accepted in OTC-3.2/AGile-09.2018.
2018-09-06	Modified the following content: Modified the content and changed some screenshots in the document based on the latest management console.
2018-08-30	This release incorporates the following change: Added section "Adding Instances to and Removing Them from a Security Group".
2018-07-30	This release incorporates the following changes: Modified sections related to security groups: Added section "Replicating a Security Group Rule". Added section "Modifying a Security Group Rule". Modified section "Deleting a Security Group Rule" and added description about how to delete multiple security group rules at a time. Added section "Importing and Exporting Security Group Rules". Modified the VPN sections: Modified the step for switching to the VPN console. Deleted sections related to VPNs. An independent VPN user guide will be provided. Deleted section "VPN Best Practice".
2018-06-30	This release incorporates the following changes: Optimized sections under "Service Overview." Optimized sections under "Security Group". Optimized section "Security Group Overview". Optimized section "Default Security Groups and Security Group Rules". Optimized section "Creating a Security Group". Optimized section "Adding a Security Group Rule". Optimized section "Fast-Adding Security Group Rules". Added security group configuration examples. Added section "Viewing the Security Group of an ECS". Added section "Changing the Security Group of an ECS". Categorized FAQs.
2018-06-11	This release incorporates the following changes: Added section "Monitoring". Modified tag description.
2018-05-23	Accepted in OTC 3.1.
2018-04-28	This release incorporates the following changes: Added description about VPN tagging. Added the IPv6 address description. Added section "Exporting VPC Information". Modified the bandwidth range. Modified the VPN modification screenshots.
2018-03-30	This release incorporates the following changes: Deleted the IPv6 address description.
2018-02-28	This release incorporates the following changes: Added the description that the security group description can contain a maximum of 128 characters.
2018-01-30	This release incorporates the following changes: Added description about the function of unbinding and releasing EIPs in batches. Added description about the function that the negotiation mode of the IKE policy in the VPN can be configured. Added the description that the security group description can contain a maximum of 64 characters.
2017-11-30	This release incorporates the following changes: Updated screenshots and steps based on the latest management console. Added description to indicate that subnets can be created without specifying the AZ.
2017-10-30	This release incorporates the following changes: Added description about the fast security group rule adding function. Added ECS security group configuration examples.
2017-09-30	This release incorporates the following changes: Added description to indicate that the peer project ID needs to be configured when a tenant creates a VPC peering connection with the VPC of another tenant. Modified description in sections "Adding a Security Group Rule" and "Deleting a Security Group Rule" based on changes made to the network console.
2017-08-30	This release incorporates the following changes: Added section "Managing Subnet Tags". Added description about the VPC, subnet, and EIP tags. Added section "Security Group Overview".
2017-07-30	This release incorporates the following changes: Added description about how to enable shared SNAT on the management console. Added section "Managing VPC Tags". Added section "Managing EIP Tags". Changed the number of routes allowed in a route table by default to 100. Updated procedures in sections "VPC and Subnet" and "Custom Route" based on changes made to the network console. Added description about the multi-project feature.
2017-06-30	This release incorporates the following change: Added description about the virtual IP address feature.
2017-05-30	This release incorporates the following change: Added FAQ How Does an IPv6 Client on the Internet Access the ECS That Has an EIP Bound in a VPC?
2017-04-28	This release incorporates the following change: Added description about how to add DNS server addresses during subnet information modification.
2017-03-30	This release incorporates the following change: Added description about the firewall function. Added description about the shared SNAT function.
2017-02-28	This release incorporates the following change: Deleted description about the button for disabling the DHCP function.
2017-02-24	This release incorporates the following change: Added description about the VPC peering function.
2017-01-12	This release incorporates the following change: Added description about the custom route table function.
2016-10-19	This release incorporates the following change: Updated the Help Center URL of the VPN service.
2016-07-15	This release incorporates the following changes: Modified the VPN authentication algorithm. Optimized the traffic metering function.
2016-03-14	This issue is the first official release.

Change History