Version 2.2 of the PyPy implementation of the Python 2 language is out.
"Our Garbage Collector is now 'incremental'. It should avoid almost
all pauses due to a major collection taking place. Previously, it
would pause the program (rarely) to walk all live objects, which
could take arbitrarily long if your process is using a whole lot of
RAM. Now the same work is done in steps." There have also been
improvements to the JIT compiler, the NumPy module has been split out, and
various other changes have been made.
The Go Blog is running a nice retrospective look at the four-year anniversary of the Go language, which was reached earlier this week. Some numbers are available, along with a look at open source projects and businesses using Go. "The number of high-quality open source Go projects is phenomenal. Prolific Go hacker Keith Rarick put it well: 'The state of the Go ecosystem after only four years is astounding. Compare Go in 2013 to Python in 1995 or Java in 1999. Or C++ in 1987!'"
Over at opensource.com, SELinux hacker Dan Walsh describes SELinux policy enforcement using dogs and cats. It has lots of cute cartoons (by Máirín Duffy) of the interaction between various types of dogs, a cat, food meant for each, and Tux as an enforcer of the food policies. It looks at type enforcement (TE), multi-category security (MCS), and multi-level security (MLS) using dog/cat analogies as well as relating them to the "real world". "SElinux is a labeling system. Every process has a label.
CIO has a summary of open source options for business software. It is a bit thin (and annoyingly broken up over multiple pages—the printable version is better), but it does cover many of the categories of business software that small businesses are likely to be interested in. Each category offers a few different options for open source solutions.
The LWN.net Weekly Edition for November 14, 2013 is available.