MinimumSoftwareVersions

This page documents the version of various packages for platforms we support for different branches of LinuxCNC.

It can be useful in deciding what OS / library / language features can be used in LinuxCNC.

Software Package	Operating system
	Ubuntu 10.04 lucid	Ubuntu 12.04 precise	Debian 7.x Wheezy	Debian 8.x Jessie	Debian 9.x Stretch	Debian 10 Buster	Debian 11 Bullseye	Ubuntu 20.04 Focal
kernel (rtai)	2.6.32	3.4	3.4		4.14.174	4.14.174		-
Kernel (rt-preempt)			3.2	4.9 (backports)	4.9	4.19
rtai	3.8	3.9	3.9		5.2.3	5.2.3
tcl/tk	8.5	8.5	8.5	8.6	8.6	8.6
python2	2.6	2.7	2.7	2.7	2.7	2.7		-
python3	3.1	3.2	3.2	3.4	3.5	3.7		3.8
gtk 2	2.12.9	2.24.10	2.24.10	2.24.25	2.24.31	2.24.32		-
gtk 3	N/A	3.4.2	3.4.2	3.14.5	3.22.11	3.24.5		3.24.20
python-gst	0.10	0.10	0.10	0.10 or 1.0	1.0	1.14.4
gcc	4.4	4.6	4.7	4.9	6.3	8.3		9.3
libgl LD_PRELOAD bug	yes	no	no	no	no	no		no
mesa	7.0.3	8.0.4	8.0.5	10.3.2	13.0.6	18.3.6
libtirpc	no	yes	yes	yes	yes	yes
yapps	2.1.1 (yapps2/yapps2-runtime)	2.1.1 (yapps2/yapps2-runtime)	2.1.1 (yapps2/yapps2-runtime)	2.1.1 (yapps2/yapps2-runtime)	2.1.1 (yapps2/yapps2-runtime)	2.2.1 (yapps2/python-yapps)
asciidoc	8.5.2	8.6.6	8.6.7	8.6.9	8.6.9	8.6.10
po4a						0.55 (0.61-1~bpo10+1)		0.57
dblatex	0.2.12	0.3.2	0.3.4	0.3.5	0.3.9	0.3.10
libmodbus5	3.0.1	3.0.1	3.0.3	3.0.6	3.0.6	3.1.4
bwidget	1.9.0	1.9.5	1.9.5	1.9.8	1.9.10	1.9.13
libtk-img	1.3	1.3	1.3	1.4.2	1.4.6	1.4.8
EGL + ES 2.0	no	yes	yes	yes	yes	yes
numpy	1.3.0	1.6.1	1.6.2	1.8.2	1.12.1	1.16.2
debhelper	(1-)7	(1-)9	(1-)9	(1-)9	(5-)10	(5-)12
standards-version	3.8.3	3.9.2	3.9.3	3.9.6	3.9.8	4.3.0
build profiles	no	no	no	backports	yes	yes
end of life	May 2013	April 2017	May 2018	June 2020	June 2022
deb archive	deb http://old-releases.ubuntu.com/ubuntu/ lucid main	deb http://archive.ubuntu.com/ubuntu/ precise main	deb http://archive.debian.org/debian/ wheezy main	deb http://ftp.debian.org/debian/ jessie main	deb http://ftp.debian.org/debian/ stretch main	deb http://deb.debian.org/debian/ buster main
	2.6
	2.7
		2.8
						Master