Hi @Anusha Chowdary,
The Pantheon upstreams will only update modules that come with the devportal profile. This will not include additional modules that have been installed. The upstream profile may not update every module.
Security updates are generally required, but non-security updates are optional. I've updated my devportal to the latest upstream (17.12.20.00), and my pantheon status page shows:
```
The following project(s) have updates available:
| Name | Existing | Candidate | Status |
|---|
| Apache Solr framework (apachesolr) | 7.x-1.8 | 7.x-1.9 | Update available |
| Commerce (commerce) | 7.x-1.13 | 7.x-1.14 | Update available |
| Environment indicator (environment_indicator) | 7.x-2.8 | 7.x-2.9 | Update available |
| Field Group (field_group) | 7.x-1.5 | 7.x-1.6 | Update available |
| File Entity (file_entity) | 7.x-2.4 | 7.x-2.12 | Update available |
| Google Analytics (google_analytics) | 7.x-2.3 | 7.x-2.4 | Update available |
| Internationalization (i18n) | 7.x-1.18 | 7.x-1.22 | Update available |
| LDAP Servers (ldap) | 7.x-2.2 | 7.x-2.3 | Update available |
| Legal (legal) | 7.x-1.7 | 7.x-1.10 | Update available |
| 'me' Aliases (me) | 7.x-1.3 | 7.x-1.4 | Update available |
| Media (media) | 7.x-2.10 | 7.x-2.14 | Update available |
| Media: YouTube (media_youtube) | 7.x-3.5 | 7.x-3.6 | Update available |
| Redis (redis) | 7.x-3.15 | 7.x-3.17 | Update available |
| Services Views (services_views) | 7.x-1.2 | 7.x-1.3 | Update available |
| Views (views) | 7.x-3.17 | 7.x-3.18 | Update available |
| Webform (webform) | 7.x-4.15 | 7.x-4.16 | Update available |
| WYSIWYG Filter (wysiwyg_filter) | 7.x-1.6-rc3 | 7.x-1.6-rc9 | Update available |
| Bootstrap (bootstrap) | 7.x-3.15 | 7.x-3.16 | Update available |
```
So in this case, while some updates are available, they are not required security updates. If you're still missing security updates, I would do those via drush. Does that help?
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