Software Release Recommendations

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ExtremeXOS Release Recommendations

The following table lists the recommended ExtremeXOS (EXOS) release and patch for each hardware platform.

Generally speaking, ExtremeXOS software version recommendations are based on the following criteria:

  • Recommended releases should have no open critical issues introduced in the respective version.
  • Recommended releases should have been deployed in the field for at least three months. As an exception, the latest release would be recommended if critical fixes affecting existing deployment were added to the release.
  • Internal SQA testing must be completed without encountering any new issues.
  • Recommended releases should have been reviewed and accepted by Engineering team leads.

Note: When deploying any software release, customers should always review the Release Notes for known issues that pertain to features and technologies used in their network. Upgrades above these recommendations are suggested only to fix a specific known issue or to implement a required ExtremeXOS feature not included in the currently recommended release.

Note: When using the recommended releases of ExtremeXOS 16.2.2 or 21.1.3, avoid the re-use of configuration files from other switches that use an SSH private key. An incorrect SSH private key can result in a reboot loop. The problem does not occur, however, when you upgrade a switch from a previous recommended release to the new recommended release with an existing saved configuration. See the EXOS 21.1.3 Release Notes (CR xos0064864) for more information.

PlatformRecommended ReleaseRecommendation Effective Date
X150EXOS 15.3.5.2-patch1-139-Mar-17
X250EXOS 15.3.5.2-patch1-139-Mar-17
X350EXOS 15.3.5.2-patch1-139-Mar-17
X430EXOS 16.2.2.49-Mar-17
X440EXOS 16.2.2.49-Mar-17
X440-G2 *EXOS 21.1.3.79-Mar-17
X450aEXOS 15.3.5.2-patch1-139-Mar-17
X450eEXOS 15.3.5.2-patch1-139-Mar-17
X450-G2EXOS 16.2.2.4 or EXOS 21.1.3.79-Mar-17
X460EXOS 16.2.2.49-Mar-17
X460-G2EXOS 16.2.2.4 or EXOS 21.1.3.79-Mar-17
X480EXOS 16.2.2.49-Mar-17
X620 *EXOS 21.1.3.79-Mar-17
X650EXOS 15.3.5.2-patch1-139-Mar-17
X670EXOS 16.2.2.49-Mar-17
X670-G2EXOS 16.2.2.4 or EXOS 21.1.3.79-Mar-17
X770EXOS 16.2.2.4 or EXOS 21.1.3.79-Mar-17
BDX8EXOS 16.2.2.49-Mar-17
BD 8500-MSM24EXOS 15.6.5.2-patch1-59-Mar-17
BD 8800-MSM48cEXOS 16.2.2.49-Mar-17
BD 8800-MSM96EXOS 16.2.2.49-Mar-17
BD 8900-MSM128EXOS 16.2.2.49-Mar-17
E4G-200EXOS 16.2.2.49-Mar-17
E4G-400EXOS 16.2.2.49-Mar-17

* Before any X440-G2 or X620 switch can connect to ExtremeCloud for management, the switch must be running ExtremeXOS version 21.1.1 patch1-5 or later.


EOS Release Recommendations

The following table lists the recommended EOS release for each hardware platform.

Note: When deploying any software release, customers should always review the Release Notes for known issues that pertain to features and technologies used in their network. Upgrades above these recommendations are suggested only to fix a specific known issue or to implement a required EOS feature not included in the currently recommended release.

PlatformRecommended ReleaseRecommendation Effective Date
K-SeriesEOS 08.42.03.000625-Apr-16
S-SeriesEOS 08.42.03.000625-Apr-16
7100-SeriesEOS 08.42.03.000625-Apr-16

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