Change log file for Exim from version 4.21
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+Exim version 4.85.2
+-------------------
+Portability release.
+Exim version 4.85.1
+-------------------
HS/04 Add support for keep_environment and add_environment options.
+ Fix CVE-2016-1531.
+
Exim version 4.85
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TL/01 When running the test suite, the README says that variables such as