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Information about the January 2015 SNOMED CT International Edition release package

Ahead of the public release of the January 2015 SNOMED CT International Edition, due on January 31, IHTSDO would like to remind licensees that there are changes to the directory structures in the release package files. The changes follow consultation involving the IHTSDO Member Forum.

The main purpose of the changes is to separate the Release Format 2 (RF2) release from the Release Format 1 (RF1) release. The RF1 release will be entering the deprecation consultation process in 2015, in preparation for withdrawing it from circulation.

A secondary purpose is to remove files that did not change with one release to the next, from the International Edition. These “static” files are available to IHTSDO Members, and will be available independently of any release, from National Release Center (NRC) distribution sites.

The benefits of the changes are:

  • To reduce the sizes of all downloads so that IHTSDO Members who do not require RF1 files are not obliged to download unnecessary data
  • To enable the IHTSDO to manage the lifecycle of the RF1-based “developer toolkit” as a product, distinct from the SNOMED CT International Release
  • To end the practice of releasing files that do not change from one release to another. Exemplars and legacy products (e.g. the Duplicate Terms subset) would be made permanently available to IHTSDOMembers - subject to lifecycle management - as separate downloads.

IHTSDO remains committed to keeping IHTSDO Members and the Community of Practice aware of changes that can be expected as SNOMED CT evolves to improve quality and clinical coverage, and better to meet its priority use cases.

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