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Support Knowledgebase

The Keil Support Knowledgebase is a database of technical support questions and answers. When a new question arises, it is added to the database and is published to the world-wide web. That makes it easier for you to get technical support at times when our support staff is unavailable.

Many of the features of our database are the result of your suggestions. If you have an idea that will improve our technical support or this web site, please give us your feedback!

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Acquisition of ARM Holdings plc. by SoftBank Group Corp.

We are pleased to inform you that on 5 September 2016, SoftBank Group Corp. acquired ARM Holdings Plc. ARM will continue to operate as an independent business within the SoftBank group.

Any current agreements between ARM Ltd (or other ARM group companies, as applicable) you / your company remain in effect as between the parties, and the parties will continue to be bound by and perform the obligations in such agreements. If you have any queries please direct these to