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• The current version, 

  Gloss
  PreSpace false t SNOMED Clinical Terms

   was first released in 2002 and is actively maintained, licensed and distributed by 

  Gloss
  t SNOMED International

  .
• None of the earlier versions of

  Gloss
  t SNOMED

   are maintained and since 2017 all antecedent versions are formally deprecated and are no longer licensed for use.
• The SNOMED terminologies were originally developed by the College of American Pathologists (CAP), they were acquired by the 

  Gloss
  t International Health Terminology Standards Development Organisation

   (IHTSDO) in 2007. Since 2017 IHTSDO has traded as 

  Gloss
  t SNOMED International

  .

References

• A Brief History of SNOMED Code Systems
• Timetable for Withdrawal of Legacy SNOMED Codes.