Release v3.1.0 sync to develop

docs/admin/release_notes/version_3.1.md

@@ -0,0 +1,18 @@
+# v3.1 Release Notes
+
+This document describes all new features and changes in the release. The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## Release Overview
+
+- Added support for IOS-XR remote file copy, install OS, and similar related functions.
+
+<!-- towncrier release notes start -->
+## [v3.1.0 (2026-07-06)](https://github.com/networktocode/pyntc/releases/tag/v3.1.0)
+
+### Added
+
+- [#398](https://github.com/networktocode/pyntc/issues/398) - Added native Cisco IOS-XR (eXR / 64-bit) support via the `cisco_iosxr_ssh` driver (`IOSXRDevice`), including `remote_file_copy` (FTP/TFTP/SCP/HTTP/HTTPS) and OS upgrades from a single golden ISO (built with Cisco's gisobuild tool) through the asynchronous `install add` / `install activate` / `install commit` workflow.
+
+### Fixed
+
+- [#402](https://github.com/networktocode/pyntc/issues/402) - Fixed nxos install_os failing due to using the default timeout on the long running `install all` command.

mkdocs.yml

@@ -132,6 +132,7 @@ nav:
       - Uninstall: "admin/uninstall.md"
       - Release Notes:
           - "admin/release_notes/index.md"
+          - v3.1: "admin/release_notes/version_3.1.md"
           - v3.0: "admin/release_notes/version_3.0.md"
           - v2.4: "admin/release_notes/version_2.4.md"
           - v2.3: "admin/release_notes/version_2.3.md"