26.3-RC1

Changes compared to: 26.2

Other:

• Introduces the wpseo_llmstxt_link_description filter for link descriptions in the llms.txt file. Props to @Godzilaa. #22637
• Removes the external link icon from the Customize llms.txt file button in the Site features section of the plugin's Settings page. #22653

Non user facing:

• Makes sure deprecated classes are not called when they are not supposed to. #22619
• Reverts notifying other admins of Yoast SEO. #22661
• Improves the bottom and the sidebar upsell in the Yoast admin pages. #22646
• Fixes Jenkins changelog entry causing pipeline failure #22665
• Adds a submenu item for the AI+ product. #22621
• Adds an explainer video to the free redirects page. #22645
• Notifies other admins of Yoast SEO. #22644
• Performs the licenses check needed for the HelpScout Beacon only if the user has at least one add-on active. #22656
• Adds unit tests for alerts. #22617