You can sure continue to use 4.5.4, 4.6 or 4.7 in your commercial website under MIT/GPL License. The versions 4.7.1 and 4.7 are practically identical (see all the differences here). You can download from here the 4.7.0 version and see the lines with the license agreement. You can compare there with the lines of minimized file of jqGrid 4.6. The version 4.7.0 was published Dec 8, 2014. Some days later Tony have changed the licence and published 4.7.1 Dec 16, 2014.
So you are can use all versions up to 4.7.0 under MIT/GPL License.
MIT License allows to make changes in the code. So everybody can modify the code of 4.7.0 and provide the results under MIT/GPL License for free.
For example I made a lot of changes. You can download the corresponding code from here. I plan to create the corresponding documentation and to publish new free version of jqGrid under the name "free jqGrid" very soon. You can see the preliminary version of the docuemtation here.
UPDATE: It's published currently two release versions of free jqGrid: 4.8.0 and 4.9.0 which included many new features and improvements. As the documentation you can use many wiki articles. I will use 4.x.y conversion for the version numbers, because I want to hold the compatibility to the old 4.x versions of jqGrid. I still hope to find the time for writing more detailed documentation. :-)
I published release versions of free jqGrid on two public CDNs: cdnjs and jsDelivr. So everybody can use the corresponding URLs in you projects. One can use additionally the URL to the latest sources from GitHub like it's described here, but I recommend don't used it in production.
I published free jqGrid additionally on three well knows repositories: NuGet (use Install-Package free-jqGrid
to install), npm (use npm install free-jqgrid
to install) and bower (use bower install free-jqgrid
to install).
I hope that all above simplifies the usage of free jqGrid for everybody. Additionally I implements typically very quickly fixes for all bugs posted as issue. Everybody can scroll over closed issues to see the time of reaction on the reported problem. Please provide the demo which reproduce the problem, if it's possible, or post JavaScript code and the test case which can I use to reproduce the reported problem. I hope I could hold the same quick reaction time in the future too.