Juniper provides this document as a means to help customers and Juniper manufacturing select a Junos software version that aligns with their deployment needs. The releases listed below have performed well for the general population, but note that due to the uniqueness of our customer network deployments to include areas such as design, traffic patterns/flows, and specific usage of features and functionality, Juniper recommends that all customers A) read the associated Release Notes to understand how features, functionality, fixes, and any known outstanding issues may apply to your specific network and applications, and B) test and certify the suggested code version(s) to ensure they will perform as expected in your network.
This article applies to the following devices:
- ACX Series
- EX Series
- MX Series
- NFX Series
- PTX Series
- QFX Series
- SRX Series
For other Junos devices, refer to the Release Notes and the Alerts column on the Download Software pages.
Notes:
- The software versions included in this article are selected by utilizing input from Juniper Engineering, customers, and analysis of field usage data.
- To be automatically notified of updates to this document, use the Subscribe link. If you do not see the Subscribe link, log in with your user account.
- Juniper Networks offers optional fee-based services to further aide customers in selecting and testing software releases. If interested in more information, please contact your Juniper Sales Representative to discuss offering details and pricing.
For use by customers and Juniper manufacturing planning an upgrade or initial installation.
Exceptions for evaluating these suggested software versions include:
-
A Juniper engineer has recommended that a customer use a specific version of Junos software that is different from what is listed here in this article.
-
You require specific features ( Feature Explorer ) that are available only in another version of Junos software. In that case, be sure to download the latest maintenance release.
-
Your current installed version of Junos is meeting your requirements as is.
- If you use NSM, refer to the NSM & Junos Compatibility Matrix to make sure the suggested Junos software version can be managed by NSM.
To see the list of End of Engineering (EOE) and EOS (End of Support) dates for specific Junos versions, please go to the Junos Dates & Milestones page or the Junos OS Evolved Dates & Milestones page
To see features supported per specific Junos versions, please go to the Juniper Pathfinder page and navigate to "Feature Explorer"
To download Junos Software, go to the Software Download site and find your product.
Suggested Junos Software Versions for your consideration and evaluation are listed in the tables below.
Select to jump to a platform series:
EX Series Ethernet Switches
| Platform | Junos Software by Platform | Last Updated |
|---|---|---|
| EX2200 (See Note 3) | Latest Junos 12.3R12-Sx | 1 Feb 2022 |
| EX2200-C ( See Note 3) | Latest Junos 12.3R12-Sx | 1 Feb 2022 |
| EX2300 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX2300-C | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX2300-MP | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX3200 | Latest Junos 12.3R12-Sx | 1 Feb 2022 |
| EX3300 ( See Note 4) | Latest Junos 12.3R12-Sx | 1 Feb 2022 |
| EX3400 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX4200 | Latest Junos 12.3R12-Sx / 15.1R7-Sx | 1 Feb 2022 |
| EX4300 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX4300-MP | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX4400 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX4500 | Latest Junos 12.3R12-Sx / 15.1R7-Sx | 1 Feb 2022 |
| EX4550 | Latest Junos 12.3R12-Sx / 15.1R7-Sx | 1 Feb 2022 |
| EX4600 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX4650 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX6200 | Latest Junos 12.3R12-Sx / 15.1R7-Sx | 1 Feb 2022 |
| EX8200 (See Note 2) | Latest Junos 12.3R12-Sx / 15.1R7-Sx | 1 Feb 2022 |
| EX8200-VC (XRE200) (See Note 2 ) | Latest Junos 12.3R12-Sx / 15.1R7-Sx | 1 Feb 2022 |
| EX9200 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX9251 | Latest 21.4R3-Sx | 14 Nov 2022 |
| EX9253 | Latest 21.4R3-Sx | 14 Nov 2022 |
| Junos Fusion Enterprise (JFE) | Latest 21.4R3-Sx | 14 Nov 2022 |
Notes:
- It is highly recommended to refer to the Release Notes, Technical Documentation, and KB articles for any outstanding and resolved issues before making the upgrade decision. Contact JTAC if there are any queries.
- Please refer to TSB16758 for minimum software requirements for newer revision EX8200 line cards.
- Please refer to TSB17138 for more details.
- Please refer to TSB17329 .
ACX Series Service Routers
| Platform | Junos Software by Platform | Last Updated |
|---|---|---|
| ACX500 | Latest Junos 20.2R3-Sx Latest Junos 20.4 (LSV Outdoor) Latest Junos 21.2 (LSV Indoor) | 2 Nov 2021 |
| ACX710 | Latest Junos 21.3R3-Sx | 9 Nov 2022 |
| ACX1000 | Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV) | 18 Oct 2021 |
| ACX1100 | Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV) | 18 Oct 2021 |
| ACX2000 | Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV) | 18 Oct 2021 |
| ACX2100 | Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV) | 18 Oct 2021 |
| ACX2200 | Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV) | 18 Oct 2021 |
| ACX4000 | Latest Junos 20.4R3-Sx Latest Junos 21.2 (LSV) | 18 Oct 2021 |
| ACX5448 | Latest Junos 21.3R3-Sx | 9 Nov 2022 |
| ACX5048 / ACX5096 | Latest Junos 21.2 (LSV) | 2 Dec 2022 |
| ACX6360-OX | Latest Junos 18.4R1-Sx | 16 Nov 2022 |
| ACX6360-OR | Latest Junos 19.4R2-Sx | 16 Nov 2022 |
| ACX7100 | Latest Junos Evolved 21.2R3-Sx-EVO | 11 Aug 2022 |
| ACX7024 | Latest Junos Evolved 22.3R1-EVO | 29 Sept 2022 |
| ACX7509 | Latest Junos Evolved 21.4R2-Sx-EVO | 29 Sept 2022 |
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MX and PTX Series Routers
| Platform | Junos Software by Platform | Last Updated |
|---|---|---|
| PTX Series (Except ones listing below) | Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3 | 26 Sep 2022 |
| PTX10001-36MR | Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.42-S2-EVO | 29 Sep 2022 |
| PTX10003 | Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.4R2-S2-EVO | 29 Sep 2022 |
| PTX10004 | Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.4R2-S2-EVO | 29 Sep 2022 |
| PTX10008/16 with FAN2/AC2/DC2 Components (Do not use if deploy - JNP10008-SF3) | Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3 | 29 Sep 2022 |
| PTX10008 with PTX10K-LC1201/2 and JNP100008-SF3 JNP10K-RE1-E | Latest Junos Evolved 20.4R3-Sx-EVO Latest Junos Evolved 21.4R2-S2-EVO | 29 Sep 2022 |
| MX Series | Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3 | 29 Sep 2022 |
| MX Series with MX-SPC3 | Latest Junos 21.2R3-Sx | 11 Aug 2022 |
| MX 2008/2010/2020 | See MX Series | |
| MX240/480/960 with SCBE3 | Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3 | 29 Sep 2022 |
| MX240/480/960 with MPC10E | Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R2-Sx | 29 Sep 2022 |
| MX5, MX10, MX40, MX80, MX104 Series | Latest Junos 20.2R3-Sx Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx (LSV) | 1 Aug 2022 |
| MX150, MX204, MX10003 Series | See MX Series | |
| MX10008/16 Series | LatestJunos 20.4R3-Sx Latest Junos 21.2R3-Sx Latest Junos 21.4R3 | 29 Sep 2022 |
| MX10008/16 Series with MX10K-LC9600 and JNP10008-SF2 | Latest Junos 21.4R3 | 1 Aug 2022 |
| MX Series with EVPN MPLS/VXLAN | Latest Junos 20.4R3-Sx Latest Junos 21.2R3-Sx | 20 Jan 2022 |
| MX Subscriber Management (*1) | Latest Junos 21.2R3-Sx | 11 Aug 2022 |
| MX Services on MS-MPC/MIC (*3) | Latest Junos 21.2R3-Sx | 11 Aug 2022 |
| vMX / vBNG (*2) | Latest Junos 21.2R3-Sx | 11 Aug 2022 |
Notes:
- This includes subscriber management deployments that incorporate services such as CGNAT, etc.
- See KB33938 for detailed information and directly downloadable links to software for M/MX/PTX/T-Series JUNOS Software
- Recently released hardware may require a software version newer than listed above. Please use the latest Service Release for the required JUNOS software version
- Due to feature parity recommended by Product Line Management
- MPC11 is not supported in Junos 19.4
NFX Series Network Services Platform
| Platform | Junos Release | Software Architecture | Release Type | Last Updated |
|---|---|---|---|---|
| NFX150 | Junos 21.4R3 | nfx-3 | Service | 13 Oct 2022 |
| NFX250-NG | Junos 21.4R3 | nfx-3 | Standard | 13 Oct 2022 |
| NFX350 | Junos 21.4R3 | nfx-3 | Standard | 13 Oct 2022 |
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QFX Series
| Platform | Junos Software by Platform | Last Updated |
|---|---|---|
| QFX5220/QFX5130/QFX5700 | Latest 21.4R3-Sx-EVO | 14 Nov 2022 |
| QFX5100 | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX5200 | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX5110 | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX5120-32C | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX5120 -48Y | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX5120-48T | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX5210 | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX10002 / QFX10008 / QFX10016 | Latest 21.4R3-Sx | 14 Nov 2022 |
| QFX10002-60C | Latest 21.4R3-Sx | 14 Nov 2022 |
| EVPN-VXLAN Fabric CRB (Centrally Routed Bridging) | Latest 21.4R3-Sx | 14 Nov 2022 |
| EVPN-VXLAN Fabric ERB ( Edge Routed Bridging) | Latest 21.4R3-Sx | 14 Nov 2022 |
| IP-Fabric ( QFX10K and QFX5K) | Latest 21.4R3-Sx | 14 Nov 2022 |
| VCF-QFX5110 | Latest 21.4R3-Sx | 14 Nov 2022 |
| VCF-QFX5100 | Latest 21.4R3-Sx | 14 Nov 2022 |
| VC-QFX5100 | Latest 21.4R3-Sx | 14 Nov 2022 |
| VC-QFX5110 | Latest 21.4R3-Sx | 14 Nov 2022 |
| VC-QFX5120 | Latest 21.4R3-Sx | 14 Nov 2022 |
| VC-QFX5120-32C | Latest 21.4R3-Sx | 14 Nov 2022 |
| VC-QFX5200 | Latest 21.4R3-Sx | 14 Nov 2022 |
| MC-LAG (QFX5K) | Latest 21.4R3-Sx | 14 Nov 2022 |
| MC-LAG (QFX10K) | Latest 21.4R3-Sx | 14 Nov 2022 |
| Qfabric (See Note 1) | Junos 14.1X53-D130 | 30 Jul 2019 |
Note:
-
Qfabric NSSU upgrade from Junos 12.2X50 to later releases is NOT recommended. Please see TSB16842 for more details.
( back to the top )
SRX Series Services Gateways
| Platform | Junos Software by Platform | Release Type | Last Updated |
|---|---|---|---|
| SRX300 / SRX320 / SRX340 / SRX345 / SRX380 / SRX550HM | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| SRX1500 | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| SRX4100 / SRX4200 | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| SRX4600 | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| SRX5400 / SRX5600 / SRX5800 with SRX5K-RE3-128G (*1) | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| SRX5400 / SRX5600 / SRX5800 with RE-1800X4 (*1) | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| vSRX 3.0 (recommended) | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
| vSRX (legacy) | Junos 21.2R3-S3 | Service | 22 Nov 2022 |
|
Products for which Junos 12.3X48 is the last supported version: SRX5400 / SRX5600 / SRX5800with SRX5K-RE-13-20 (*1)(*2) SRX100H2 / SRX110H2 / SRX210HE2 / SRX220H2 / SRX240H2 / SRX550 / SRX650 SRX1400 / SRX3400 / SRX3600 | Junos 12.3X48-D105 | Standard | 16 Oct 2020 |
Notes:
-
KB30446 - SRX Junos SRX5K Hardware / Software compatibility matrix.
-
TSB17655 - On the SRX5000 series with SRX5k RE-13-20 a software upgrade to Junos release 12.3X48-D80, D85, or D90 may fail the pre-check due to insufficient space available on the compact flash.
-
TSB18251 - For upgrades to Junos version 21.2 or higher from Junos versions below 21.2, the no-validate option needs to be used in the request system software upgrade or the request system software in-service-upgrade command. Note: this does not apply to SRX300 series and SRX550HM
-
PR1590099 - The no-validate option with the request system software in-service-upgrade command does not take effect on SRX platforms. As a workaround, use the no-compatibility-check option instead. This issue is fixed in Junos 20.3R3-S5, 20.4R3-S4, 21.1R3-S3 and 21.2R1 and higher releases
-
For Junos OS upgrade paths instructions for SRX platforms, please see KB36620.
-
For EoE and EoS dates for each Junos release, please see Junos Release Milestones.
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