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Package Differences between Oracle 11.2.0.4 and 12.1.0.2?

The question sounds pretty trivial:

Which packages did exist in Oracle 11.2.0.4 but don’t exist in Oracle 12.1.0.2 anymore?

And going a bit deeper into the topic,

Which procedures and functions calls of SYS packages have been changed since then?

A colleague of mine (thanks to Thomas Kempkens from ACS Support for writing up a fancy procedure – all credits go to him) had to dig this out for a customer,

See the result.
These packages don’t exist in Oracle 12.1.0.2 anymore but did exist in Oracle 11.2.0.4 (without PSUs):

CWM2_OLAP_INSTALLER
DBMS_AMD
DBMS_APPCTX
DBMS_DBLINK
DBMS_DM_IMP_INTERNAL
DBMS_DM_UTIL_INTERNAL
DBMS_DUMA_INTERNAL
DBMS_JDM_INTERNAL
DBMS_RULE_COMPATIBLE_90
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