There recently was an interesting SO question on F# Printf.* family of functions: http://stackoverflow.com/questions/11559440/how-to-manage-debug-printing-in-f It is known that these functions are very slow. Slow enough for most people to avoid them entirely, despite the advantages they offer in verifying argument types. What I did not know is that these functions are so slow that a few lines of simple user code can speed them up, without changing the interface: With this code I get from 2x to 10x [...]

We have just released a new version (2.4.85) of WebSharper, our web development framework and F#-to-JavaScript compiler. The main highlight of this release is experimental support for easy cloud deployment of your applications with AppHarbor. Small AppHarbor deployments are currently free, which is great news for individual developers and small companies. How to get it to work: Set up a GitHub or Bitbucket repository Set up an AppHarbor account Connect the two, according to AppHarbor instructions, so th[...]

The annual CUFP workshop is a place where people can see how others are using functional programming to solve real world problems; where practitioners meet and collaborate; where language designers and users can share ideas about the future of their favorite language; and where one can learn practical techniques and approaches for putting functional programming to work.

Let me introduce BuildMagic: https://bitbucket.org/IntelliFactory/buildmagic - get 0.0.1 via NuGet Have you used NuGet? If not, you probably should - with aggressive backing from Microsoft, it's quickly converging to be the default package manager and binary repository for .NET, other similar projects now stand no chance (though they often have more technical merit). Have you used NuGet package restore? You probably should - pushing binaries into source control is wicked. Especially if you are using DVCS[...]

You may have heard that Don, Antonio and I have teamed up again to work on Expert F# 3.0, doing a comprehensive update with quite a bit of changes, and adding a good amount of new material to the book's first and second edition. [more]