Description:
During further testing problems have been found with R5.0 Hotfix20 that mean hotfix20 is not recommended for installation at this time.  A further hotfix will be issued shortly to address the problems discovered.

Environment:
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o z/OS OSB R5.0 at the hotfix20  level

Symptoms:
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Various S0C4 abends in the EE.

Cause:
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The exact cause of the problem is not known at this time.

Resolution:
===========
Customers should refrain from putting Hotfix20 onto production and await hotfix21.
Symptoms:

Cause: