Update CHANGELOG.md for #13644

CHANGELOG.md

@@ -15,6 +15,7 @@ BREAKING CHANGES
 * resource/aws_api_gateway_method_settings: Remove `Computed` property from `throttling_burst_limit` and `throttling_rate_limit` arguments, enabling drift detection [GH-14266]
 * resource/aws_api_gateway_method_settings: Update `throttling_burst_limit` and `throttling_rate_limit` argument defaults to match API default of `-1` to keep throttling disabled [GH-14266]
 * resource/aws_apigatewayv2_integration: Correctly handle the `passthrough_behavior` attribute for HTTP APIs [GH-13062]
+* resource/aws_apigatewayv2_stage: Make `deployment_id` a `Computed` attribute [GH-13644]
 * resource/aws_autoscaling_group: `availability_zones` and `vpc_zone_identifier` argument conflict now reported at plan-time [GH-12927]
 * resource/aws_autoscaling_group: Remove `Computed` property from `load_balancers` and `target_group_arns` arguments, enabling drift detection [GH-14064]
 * resource/aws_dx_gateway: Remove automatic `aws_dx_gateway_association` resource import [GH-14124]