chore: prepare release 3.26.0 (#605)

Co-authored-by: Toni Kangas <kangasta@users.noreply.github.com>

Author: paketeserrano

CHANGELOG.md

@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.26.0] - 2025-11-26
+
 ### Added
 
 - stack - starter-kit: make object storage publicly available
@@ -646,7 +648,8 @@ Initial public beta release :tada:
 ### Added
 - Current feature set added! First internal release
 
-[Unreleased]: https://github.com/UpCloudLtd/upcloud-cli/compare/v3.25.0...HEAD
+[Unreleased]: https://github.com/UpCloudLtd/upcloud-cli/compare/v3.26.0...HEAD
+[3.26.0]: https://github.com/UpCloudLtd/upcloud-cli/compare/v3.25.0...v3.26.0
 [3.25.0]: https://github.com/UpCloudLtd/upcloud-cli/compare/v3.24.1...v3.25.0
 [3.24.1]: https://github.com/UpCloudLtd/upcloud-cli/compare/v3.24.0...v3.24.1
 [3.24.0]: https://github.com/UpCloudLtd/upcloud-cli/compare/v3.23.0...v3.24.0