You're looking for a blog post about Eagler 1.9! Unfortunately, I don't have have direct access to specific blog posts or information about Eagler 1.9. However, I can suggest some possibilities:

For players who grew tired of the "click faster to win" meta of 1.8, Eagler 1.9 offers a slower, more strategic combat system where timing and precision matter more than CPS (clicks per second).

End Cities: Exploration of the outer End islands, including Shulkers and Elytra (which are currently being added to Eaglercraft snapshots).

If you are playing Eagler 1.9, these core Minecraft 1.9 changes apply: