Patch Org for Managed Package
Patch Org Upgrade
In order to create a patch org, the user will have to click on the new button as shown below:

Patch Org view
On Click of New, following screen is displayed:

Create Patch Org View
Select the Version number, enter appropriate username for the patch org and make sure that the email address is correct for patch dev org.

Selected Patch Org created
- Once the patch is created by retrieving all the latest code, the user will have to log into the patch org to make any code changes.
- Once the changes are made within the patch org, the user can upload the package as he/she would do in the managed dev org.

Push Upgrade and Version view
The Version tab shows the version that was uploaded in the patch org, the admin can then click on the Push Upgrade button.

Push Upgrade Screen
On push upgrade screen, click on the Schedule Push Upgrade button:

Schedule Push Upgrade Screen
Within the Schedule Push Upgrade Screen, the admin can select the Patch Version, if there are any orgs that does not have the version of code uploaded it will show up in the Select Target Organizations grid.
The admin is able to schedule those selected organization and apply the patch version 1.2.2.

Upload result screen
Upload results will be displayed on the Push Upgrade Screen, the targets have a hyper link that shows more details about the scheduled tasks.