Ubuntu 12.04 LTS (Precise Pangolin) has been released. Here the announcement:

A quagga security update has been released for Debian GNU/Linux

Dedoimedo posted a tutorial explaining how to recover lost partitions and data in Linux using tools like TestDisk, PhotoRec, recoverjpeg, plus manual recovery using hex editor, and more.

Ubuntu Tweak 0.7.0 for Ubuntu 12.04 LTS has been released

An asterisk security update has been released for Debian GNU/Linux

Updated libpng packages are avaiable for both CentOS 5 and CentOS 6

GNOME 3.4.1 has been released

Phoronix posted the latest updates on Valve's Linux plans

Another openssl update has been released for Debian GNU/Linux

The following CentOS updates has been released: CESA-2012:0516 Critical CentOS 6 thunderbird Update, CEBA-2012:0512 CentOS 6 aide Update, CEBA-2012:0511 CentOS 6 matahari Update, CESA-2012:0515 Critical CentOS 6 firefox Update, CESA-2012:0518 Important CentOS 6 openssl Update, CESA-2012:0516 Critical CentOS 5 thunderbird Update, CESA-2012:0516 Critical CentOS 5 firefox Update, CESA-2012:0515 Critical CentOS 5 firefox Update, CESA-2012:0518 Important CentOS 5 openssl Update, and CESA-2012:0509 Moderate CentOS 6 wireshark Update

Phoronix takes a look at Intel HD 4000 Ivy Bridge Graphics on Linux

Ubuntu Vibes reports that Canonical has announced the release schedule of Ubuntu 12.10

The Geek Stuff published 8 Practical Linux Netcat NC Command Examples

LinuxBSDos.com shows you how to install Takeoff Launcher on Kubuntu 12.04

A typo3-src security update has been released for Debian GNU/Linux

The CentOS project has released the following 10 updates: CEEA-2012:0503 CentOS 6 bnx2fc Update, CEEA-2012:0503 CentOS 6 bnx2x Update, CEEA-2012:0503 CentOS 6 bnx2i Update, CEEA-2012:0503 CentOS 6 bnx2 Update, CEEA-2012:0503 CentOS 6 cnic Update, CEBA-2012:0502 CentOS 6 device-mapper-multipath Update, CEBA-2012:0506 CentOS 5 autofs Update, CEBA-2012:0499 CentOS 5 aide Update, CEBA-2012:0505 CentOS 5 cman Update, and CEBA-2012:0498 CentOS 5 glibc Update

An openssl security update has been released for Debian GNU/Linux

Dedoimedo posted a compilation of the best alternative software for non-Gnome and non-KDE desktops, optimized for weaker machines running Xfce, LXDE and other non-mainstream Linux desktop environments.

Another gajim update has been released for Debian GNU/Linux

The following CentOS updates has been released: CEEA-2012:0486 CentOS 6 libgcrypt Update, CEBA-2012:0485 CentOS 6 fence-virt Update, CEBA-2012:0483 CentOS 6 fence-agents Update, and CEEA-2012:0484 CentOS 5 libgcrypt Update