SDK v 4.3, S110 v 5.2 and a totally new gcc toolchain.

Question

Hi all,
the release note of SDK 4.3.0 reports that it was tested and verified using BLE S110 version 5.2 
 When it will be available (version 5.2) ?
Actually we can download only version 5.1 
 The same note reports a switching from gcc CodeSourcery to gcc-arm-embedded (launchpad). 
 Why such a sudden change?
What are the benefits ? 
 Thanks.

Ole Morten · Accepted Answer

I'm not at work now, so I can't check it in detail, but I actually think that this could be just a typo, as the S110 version 5.2 is not quite finished yet as far as I know. Anyway, the only change from 5.1 to 5.2 will be support for a new chip revision, which is about to be rolled out, so since none of you have this (yet), there isn't anything fun in the new S110 release. 
 The change of toolchain was as far as I've understood it mostly done for availability reasons. The Lite version of the CodeSourcery toolchain seemed to become constantly harder to find an actual download link for, while the gcc-arm-embedded toolchain puts download links (for all platforms) up front. If you've started using CodeSourcery, you will most likely be fine continuing to do so, but our builds are no longer being tested with this.