Defined by simplicity and innovation, Junos OS is the single operating system that powers Juniper’s broad portfolio of physical and virtual networking and security products. Built with 20+ years of reliability, security, and flexibility at its core, it runs some of the world’s most sophisticated network deployments, giving operators a competitive advantage over other network operating systems. Junos OS automates network operations with streamlined precision, ensures operational efficiency, and frees up valuable time and resources for top-line growth opportunities.

Junos OS in the Data Center

On data center platforms, Junos OS is disaggregated and runs in a virtualized Linux environment. Containerized applications and other virtualized guest operating systems can coexist on the same CPU complex. These systems provide a protected Linux environment for system interaction and an open platform for third-party application integration. Low-level APIs improve programmability and telemetry functions. The APIs are exposed for application development and automation, vastly improving your access to the control, management, and data planes.

17.4R1.16 21 Dec 2017
12.3X48-D60 19 Dec 2017
15.1X49-D120 08 Nov 2017
12.1X46-D71 05 Oct 2017
12.3X48-D55.4 25 Sep 2017
15.1X49-D110.4 11 Sep 2017 JTAC Recommended for SRX300;SRX320;SRX340;SRX345;SRX550M;SRX550HM (from 02 Oct 2017)
17.3R1.10 25 Aug 2017
12.1X46-D67 14 Aug 2017 JTAC Recommended for SRX100B/H;SRX110H;SRX210B/H/BE/HE;SRX220H;SRX240B/H/B2 (from 20 Oct 2017)
15.1X49-D100.6 05 Jul 2017
12.3X48-D50.6 01 Jun 2017 JTAC Recommended for SRX100H2;SRX110H2;SRX210HE2;SRX220H2;SRX240H2;SRX550;SRX650 (from 20 Oct 2017)
15.1X49-D90.7 02 May 2017
12.1X46-D66.1 01 May 2017
15.1X49-D80.4 27 Mar 2017
12.3X48-D45.6 23 Feb 2017
12.3X48-D30.12 22 Feb 2017 JunOS FIPS
15.1X49-D75.5 24 Jan 2017
12.1X46-D65.4 06 Jan 2017
15.1X49-D70.3 16 Dec 2016
12.1X47-D45.4 14 Nov 2016
12.3X48-D40.5 02 Nov 2016
12.1X46-D60.4 18 Oct 2016
15.1X49-D60.7 19 Sep 2016
12.3X48-D35.7 10 Aug 2016
12.1X46-D55.3 15 Jul 2016
12.1X46-D52.1 06 Jun 2016 TSB16932 & PR1154016 & JSA10734 /CVE-2016-0777 & CVE-2016-0778
15.1X49-D50.3 03 Jun 2016
12.1X47-D40.1 25 May 2016
15.1X49-D45 05 May 2016
12.3X48-D30.7 02 May 2016
12.1X46-D50.4 19 Apr 2016
12.3X48-D25.3 03 Mar 2016
12.1X47-D35.2 02 Mar 2016
12.1X46-D45.4 17 Feb 2016
12.1X44-D60.2 04 Feb 2016
12.1X47-D30.4 25 Nov 2015
12.3X48-D20.4 16 Nov 2015
12.1X46-D40.2 30 Sep 2015
12.1X44-D55.3 30 Sep 2015
12.1X47-D25.4 13 Aug 2015
12.3X48-D15.4 01 Jul 2015
12.1X46-D35.1 03 Jun 2015
12.1X44-D50.2 19 May 2015
12.1X45-D25.1 08 May 2014
12.1X45-D30 10 Jul 2014
11.4R13.5
11.4R12.4


https://www.juniper.net/us/en/products-services/nos/junos/