Merged main into live

Author: mijacobs

docs/organizations/settings/naming-restrictions.md

@@ -227,11 +227,21 @@ Tag names must conform to the following restrictions.
 
 Azure Pipeline definitions must conform to the following restrictions.
 
-|Restriction type |Restriction  |
-|---------|---------|
-|Job name    |- Must only contain alphanumeric characters and `'_'`.<br/>- Must not start with a number.<br/>- Must have a unique name.<br/>- Must not contain keywords, for example: "deployment."         |
-|Stage name     | - Must only contain alphanumeric characters and `'_'`.<br/>- Must not start with a number.<br/>- Must not contain keywords, for example: "deployment."        |
-|Expressions    | Must start with `a-Z` or `_AND`, followed by `a-Z`, `0-9`, or `_`.        |
+|Restriction type    |Restriction  |
+|--------------------|-------------|
+|Expressions         | - Must start with `a-z`, `A-Z`, or `_`, followed by `a-z`, `A-Z`, `0-9`, or `_`. |
+|Variables           | - User-defined and environment variable must only contain alphanumeric characters, `.`, and `_`.<br>- Must not begin with the following reserved prefixes: `endpoint`, `input`, `secret`, `path`, and `securefile`. Variables using these prefixes (case-insensitive) won’t be available to tasks or scripts.|
+|Stages              | - Name of the stage `stage` must only contain alphanumeric characters and `_`.<br/>- Must not start with a number.   |
+|Jobs                | - Name of the job `job` must only contain alphanumeric characters and `_`.<br/>- Must not start with a number.<br>- Must not contain keywords, for example: "deploy". |
+|Deployment jobs     | - Name of the deployment job `deployment` must only contain alphanumeric characters and `_`.<br>- Job and stage names must not contain reserved keywords (for example: deploy).<br>- Each job in a stage must have a unique name.       |
+|Matrix job strategy | - Matrix configuration names must only contain alphanumeric characters and `_`.<br>- Must start with a letter.<br>- Maximum length: 100 characters.       |
+|Build resource      | - Alias or name of build artifact `build` must only contain alphanumeric characters, `-`, and `_`. |
+|Container resources | - Container ID `container` must only contain alphanumeric characters, `-`, and `_`. |
+|Package resources   | - Alias of package artifact `package` must only contain alphanumeric characters, `-`, and `_`. |
+|Pipeline resources  | - ID of the pipeline resource `pipeline` must only contain alphanumeric characters, `-`, and `_`. |
+|Repository resources| - Alias for the specified repository `repository` must only contain alphanumeric characters, `-`, and `_`. |
+|Webhook resources   | - Name of the webhook `webhook` must only contain alphanumeric characters, `-`, and `_`. |
+|Steps               | - ID of the step `name` must only contain alphanumeric characters, `-`, and `_`. |
 
 For more information, see [Azure Pipelines documentation](../../pipelines/index.yml).