# Change History

Released On | Description
--- | ---
2021-07-27 | Modified the following content: Added fields and descriptions about idle timeout duration.
2021-06-10 | Modified the following content: Added fields and descriptions about session stickiness duration.
2021-06-08 | This release incorporates the following changes: Added notes in Tag to state that the APIs can also be used to add tags to or remove tags from dedicated load balancers or their listeners.
2021-05-28 | This release incorporates the following changes: Changed enhanced load balancer to shared load balancer.
2021-02-05 | This release incorporates the following changes: Added Dedicated Load Balancer APIs. Added API Call Precaution. Added API Call Precaution. Added API Call Precaution.
2020-02-26 | This release incorporates the following changes: Added Tag.
2019-06-11 | This release incorporates the following changes: Changed the value descriptions of the tag key and value in section "Tag".
2019-05-16 | This release incorporates the following changes: Added parameter project_id in sections of enhanced load balancer APIs.
2019-03-20 | This release incorporates the following changes: Added parameters created_at and updated_at in sections related to enhanced load balancers and listeners.
2018-11-30 | This release incorporates the following changes: Added the sni_container_refs parameter for enhanced load balancer APIs.
2018-10-12 | Added API Version.
2018-09-13 | This release incorporates the following changes: Added descriptions of parameters loadbalancer_id and listener_id in Load Balancer and Listener.
2018-08-30 | This release incorporates the following changes: Changed the full name of the service to Elastic Load Balancing.
2018-07-20 | This release incorporates the following changes: Modified the constraints for adding a listener using the IP protocol (or in DR mode).
2018-05-30 | This issue is the first official release.