Skylight performance element: GT Release Notes 7.9.4

These release notes cover the requirements, new features, and changes for the Skylight Element: GT firmware version 7.9.4. Please read all notes prior to installing this firmware version.
For more information, refer to Features and User Material Section: Skylight performance elements: Features and User Material
## Requirements
This firmware version applies to the following Skylight element: GT, resulting from changes in the TLS version, the following software versions are compatible with SkyLIGHT Director Version 1.3 (now Skylight orchestrator) and above:

• 7.1.1.1
• 7.3.0.3
• 7.4
• 7.5
• 7.6
• 7.7
• 7.8
• 7.8.1
• 7.8.2
• 7.8.2.1
• 7.8.3
• 7.9
• 7.9.1
• 7.9.2
• 7.9.3
• 7.9.4

Firmware Version 7.9.4_24917 (2022-07-29)

New Features and Enhancements

GT: Respin with a new FPGA
Created new version of GT using Xilinx Kintex instead of Spartan 6. Xilinx had issues producing Spartan 6 and needed to switch to another FPGA in order to keep selling GT.

Update dropbear SSH to version 2022.82
Updated to latest dropbear version to avoid vulnerabilities.

ICMP redirect security issue
The ICMP Redirect configuration feature will support disabling/enabling ICMP Redirect feature via CLI/WEB interface.

Operational Considerations

Important Notes

• The Skylight element: GT firmware is delivered in a consolidated file prefixed by “ACC”, e.g. ACC_7.X_YYYY.afl. This file contains the firmware for the GT, GX , LX and LT Performance Element products. It cannot be used with any other product.
• IMPORTANT: Prior to upgrading the firmware on a unit where the History Buckets feature is enabled, certain precautions may need to be taken to prevent a loss of history data during the upgrade.
• After upgrading to 7.9.1 or 7.9.2, the SCP is no longer able to send files, reporting the following error: Code = 3: URL using bad/illegal format or missing URL. This is due to a syntax change and customer needs to edit the URL after upgrading to 7.9.2 or 7.9.3.
  The URI generic syntax (in RFC 3986) consists of a hierarchical sequence of five components: URI = SCHEME ':' ['//' AUTHORITY] PATH ["?" QUERY] ["#" FRAGMENT]. In this, AUTHORITY = [USER_INFO "@"] HOST [":" PORT]. The AUTHORITY part and the PATH part are isolated by the slash ('/') character if the AUTHORITY exists.