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Gloss
tSNOMED CT International Release
 includes three distinct Given the
Gloss
tRF2
's history tracking capability, it is possible to perform a number of different releases of content:
release types
.  descibes the release types and the differences between them.

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Release type

   Description

Full

Glossary include
Glossfull release
Suffix is
Definline
Exampletrue
Notetrue
Prefix A

Snapshot

Glossary include
Glosssnapshot release
Suffix is
Definline
Exampletrue
Notetrue
Prefix A

Delta

Glossary include
Glossdelta release
Suffix is
Definline
Exampletrue
Notetrue
Prefix A

There are valid practical use cases for each type of each 

Gloss
PreSpacefalse
tRelease Type
. Each
Gloss
Spacetrue
tInternational release
will incorporate all three of these
Gloss
tRelease Types
, allowing users to choose the most appropriate format for their needs.A
Gloss
Spacetrue
tfull release
will always be available from release centers. Optionally, other
Gloss
Spacetrue
tRelease Formats
may also be made available. Where out of cycle releases are made, these will follow the same format as standard cycle releases

  • The full release allows access to all versions of the release. This is valuable for reviewing data entered using earlier versions and more generally supporting change management.
  • The snapshot release only includes the latest version of each component. This can be useful to optimize access to the current version but does not provide access to earlier versions.
  • The delta release only includes changes made between one version and the next. This provides a simple way to identify new and changed components to support change management and can also be used to update the previous version of the full release to the new version of the full release. However, the delta release cannot be used as a stand alone resource.

When considering which release type to use, it is worth noting that delta and snapshot views can be readily generated from the full release type. For this reason organizations that maintain 

Gloss
tSNOMED CT extensions
 are required to provide the 
Gloss
tfull release type
, while distribution of the other release types are optional.