Docs updates for new artifact expiration defaults

doc/ci/yaml/README.md

@@ -2720,7 +2720,7 @@ job:
 expire and are therefore deleted, counting from the time they are uploaded and
 stored on GitLab. If the expiry time is not defined, it defaults to the
 [instance wide setting](../../user/admin_area/settings/continuous_integration.md#default-artifacts-expiration-core-only)
-(30 days by default, forever on GitLab.com).
+(30 days by default).
 
 You can use the **Keep** button on the job page to override expiration and
 keep artifacts forever.

doc/user/admin_area/settings/continuous_integration.md

@@ -67,8 +67,7 @@ The setting at all levels is only available to GitLab administrators.
 The default expiration time of the [job artifacts](../../../administration/job_artifacts.md)
 can be set in the Admin Area of your GitLab instance. The syntax of duration is
 described in [`artifacts:expire_in`](../../../ci/yaml/README.md#artifactsexpire_in)
-and the default value is `30 days`. On GitLab.com they
-[never expire](../../gitlab_com/index.md#gitlab-cicd).
+and the default value is `30 days`.
 
 1. Go to **Admin Area > Settings > CI/CD**.
 1. Change the value of default expiration time.

doc/user/gitlab_com/index.md

@@ -74,7 +74,7 @@ Below are the current settings regarding [GitLab CI/CD](../../ci/README.md).
 | Setting                 | GitLab.com        | Default       |
 | -----------             | ----------------- | ------------- |
 | Artifacts maximum size (uncompressed) | 1G                | 100M          |
-| Artifacts [expiry time](../../ci/yaml/README.md#artifactsexpire_in)   | kept forever           | deleted after 30 days unless otherwise specified    |
+| Artifacts [expiry time](../../ci/yaml/README.md#artifactsexpire_in)   | From June 22, 2020, deleted after 30 days unless otherwise specified (artifacts created before that date have no expiry).           | deleted after 30 days unless otherwise specified    |
 | Scheduled Pipeline Cron | `*/5 * * * *` | `19 * * * *` |
 | [Max jobs in active pipelines](../../administration/instance_limits.md#number-of-jobs-in-active-pipelines) | `500` for Free tier, unlimited otherwise | Unlimited
 | [Max pipeline schedules in projects](../../administration/instance_limits.md#number-of-pipeline-schedules) | `10` for Free tier, `50` for all paid tiers | Unlimited |