25.5-RC1

Changes compared to: 25.4

Enhancements:

• Changes the Upgrades page to a Plans page. #22374
• Enhances the UX of the llms.txt feature, by informing users for potential issues with generating the file, via Yoast's alert center. #22329
• Uses canonical URLs for the post lists in the llms.txt file. #22361

Other:

• Adds an announcement for the Google Docs add-on. #22309
• Removes redundant flushing of cache groups when incoming links for posts change. #22349

Non user facing:

• Fixes a bug where the Google Docs add-on announcement modals appeared on all admin pages. #22376