Tag release 3.9.90
Bump version to 3.8.4 Update NEWS.
Tag release 3.9.5
Tag release 3.9.4
Tag release 3.9.3
Tag release 3.8.3
Tag release 3.9.2
Tag release 3.8.2
Tag release 3.9.1
Tag release 3.8.1
Tag release 3.8.0
Tag release 3.7.92
Tag release 3.7.91
Tag version 3.7.90
Tag release 3.6.3
Tag release 3.7.5
Tag release 3.7.4
Tag 3.7.3 release
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Tag 3.6.2 release