# List Index Tag Information

This page contains notes on LST tags with multiple entries noting how similar or different the use of the tag is in each of the lines or files it is used in as well as additional information on the use of LST tags.

## Tag state

Some tags are labeled New or Updated as well as Deprecate, Obsolete and Removed.

New:
New tags usually indicate the version in which they were added to the program.
Updated:
Updated tags also indicate the version in which they were updated.
Deprecated:
Deprecated tags are scheduled to be removed from the program. Deprecated tags should still parse and work as they did before but will not in future versions. Deprecated tag entries should indicate the tag that replaces it.
Obsolete:
The tag should still parse but should no longer work. Any attempt to load it will display an error message indicating that the tag is no longer supported.
Removed:
The tag should no longer even parse. Any attempt to load the tag should generate an unrecognized tag error the same as any other bad tag name.