Github user bodewig commented on the pull request: https://github.com/apache/log4net/pull/12#issuecomment-77686089 I'm fine with the first batch of changes you propose but don't think we should thrown an exception on .NET 4.0. I've opened [LOG4NET-455](https://issues.apache.org/jira/browse/LOG4NET-455) for tracking this PR.
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