Explains how libcurl upgrades enhance security, compatibility, and protocol support by updating the HTTP client infrastructure with the latest libcurl features and fixes.
A libcurl upgrade is a feature that
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updates the embedded libcurl library from version 7.30 to 8.17.0 to align with upstream security and protocol improvements,
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preserves specific customizations such as VRF awareness, XR SSL integrations, and TCP performance tuning, and
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ensures backward compatibility and automatic benefit for all dependent applications without user intervention.
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Feature Name |
Release Information |
Feature Description |
|---|---|---|
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Upgrade CURL libraries for HTTP client |
Release 26.3.1 |
Introduced in this release on: Fixed Systems (8200 [ASIC: Q100, Q200, P100], 8700[ASIC: P100, K100], 8010 [ASIC: A100])(select variants only*); Centralized Systems(8600 [ASIC:Q200]) ; Modular Systems (8800 [LC ASIC: Q100, Q200, P100]). You gain enhanced security and improved reliability through an upgraded embedded libcurl library. This transparent update preserves existing functionality and continues to support HTTP/1.0 and HTTP/1.1. |
Key benefits for libcurl upgrades
Describes the key attributes, compatibility considerations, preserved patches, supported features, and operational behavior of the libcurl upgrade.
Support and restrictions for libcurl upgrade
Lists the supported Cisco platforms, associated restrictions, and key characteristics of the libcurl upgrade.
How libcurl upgrade works
Describes how the HTTP client infrastructure uses the upgraded libcurl library, including integration, transaction flow, and improved security and maintainability.