RELEASE: LiveCode 6.7 RC 2

[Fraser Gordon]

Dear List Members.

We are pleased to announce the release of LiveCode 6.7 RC 2.

Release Focus
33 bug fixes

Known issues
Multicore rendering disabled in Windows due to multimedia not being thread-safe

Release contents
The number of bugs fixed is so large that it no longer makes sense to include a summary in the release email. Instead, please look at the bug fix section of the release notes which can be found here:

http://downloads.livecode.com/livecode/6_7_0/LiveCodeNotes-6_7_0_rc_2.pdf

Multicore Rendering
We've updated the way LiveCode renders on all platforms. It now splits your stack up into as many section as there are CPU cores. Each core renders portion of your stack which in theory improves rendering performance by the number of core available. In practice this isn't the case as there are overheads associated with this approach. The performance improvements will be felt in fairly specific circumstances at the moment as there are a number limitations in the engine we're still trying to remove. However, as this is the final feature to go into LiveCode 6.7 we felt it important to get it into testing early. 

We've seen a number of glitches on Retina Mac but we would appreciate your help in identifying the edge cases on other platforms. It is also possible that some instability will have been introduced. LiveCode was not written with multicore processing in mind so we have been updating the engine where necessary to be "thread-safe". If you app crashes please try and reproduce the crash and report it to us as it will lead us to the parts of the engine that need a similar update. We think we've caught the majority but once again, there may be some edge cases that your project exercises that our test system does not cover.

In the next few builds as we mature the feature we'll release a few simple sample stack that exercise the cores available on your machine.

Getting this release
http://downloads.livecode.com/livecode/

Feeding Back
Please report any issues at quality.runrev.com. Where possible, please check the list of outstanding bugs at the link above to ensure you are not duplicating a report. Having said that, our team is here to help so we’ll mark duplicate bugs as they come in.

Warm regards,

The LiveCode Team