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Hi All, What is the latest and stable version of SRX1500?What is the procedure for upgrading from SRX 1500 (15.1X49-D110.4 Version) to the latest SW version?Your Response Is Highly Appreciated.
The Juniper support group has a recommendation KB here.https://supportportal.juniper.net/s/article/Junos-Software-Versions-Suggested-Releases-to-Consider-and-Evaluate?language=en_US#srx_seriesCurrently the SRX1500 is listed as recommending Junos 21.2R3-S4For the upgrade process you need to review the target version release notes for the specifics of the upgrade process. In generally, you can jump directly either 3 or 4 major versions of Junos (the number before the period). But details and caveats per platform and specific version exceptions are called out in release notes of final target version.When the jump is too great you have two options:1-Make multiple ugrades to the necessary intermediate version2-Do a format install of the new version (you need local access for this process)A- export the current configuration and save off the deviceB- make a bootable USB on the device and add the new version install file to the /var/tmp folder of the usb imageC- boot to the usb imageD-run a format install of Junos new version to the internal driveE-boot to the new imageF-load and commit the saved configuration