I am using modified version of DNN HttpModules\UrlRewrite\UrlRewriteModule,
in particular I am calling their Friend RewriterUtils.RewriteUrl function. In 4.0.3 version it expected URL parameter without QueryString and added queryString from context.Request.QueryString inside the function.
But in 4.4. my code stopped working.
The reason was that they removed the code to add querystring information from the function and made it responsibility of a caller.
It certainly makes sense, but it will be easier for me(and other developers), if comments with description how function works and what the changes are done will be added to the source code.
It is the expected code style for open source project.