%general-entities; ]> In 11.3 release, --enable-default-pie and --enable-default-ssp are enabled for GCC. They can mitigate some type of malicious attacks but they cannot provide a full protection. In case if you are reading a programming textbook, you may need to disable PIE and SSP with GCC options -fno-pie -no-pie -fno-stack-protection because some textbooks assume they were disabled by default. Below is a list of package updates made since the previous release of the book. Bash &bash-version; Bc &bc-version; D-Bus-&dbus-version; Expat-&expat-version; File-&file-version; Gawk-&gawk-version; Grep-&grep-version; IANA-Etc-&iana-etc-version; Less-&less-version; Libcap-&libcap-version; Libffi-&libffi-version; Linux-&linux-version; Meson-&meson-version; Ninja-&ninja-version; Python-&python-version; Readline-&readline-version; Shadow-&shadow-version; Tzdata-&tzdata-version;