Dev Diary #209 is up a day early...and it's more patch notes!
https://forum.paradoxplaza.com/forum/threads/stellaris-dev-diary-209-nemesis-attack-of-the-patch-notes.1466998/As it turns out, Paradox had immediately/already begun working on the follow-up patch (v3.01) over a week ago, which would appear to lend credence to the theory that the main 3.0 update wasn't ready for prime-time. I suppose it still beats them releasing the update as-is (was), however.
It's another long list of changes & fixes, if not quite as epic in length compared to the 3.0 patch notes themselves. This one comes with a lot of fixes/improvements to the UI and modding capabilities, along with the usual bug-squashing (there's almost more of that than in the 3.0 update).
Some of the patch notes that caught my attention:
* If you have sufficient intel, hovering over the button to form or cancel a research agreement will now tell you how many technologies you and the other country may learn from it.
* Hovering over the button to form or cancel a commercial agreement now tells you how many credits you will gain from it (rather than you having to propose the agreement to find out).
* When you are offered a commercial agreement, you will now hear about the energy credit benefits.
* Leaving federations through events no longer generates opinion penalties unless we deliberately want those penalties set.
* Subjects that are in a federation with their overlord should now be able to declare a war for independence on them.
* Reworked the final step of the Vultaum, Yuht, First League, Irassian, and Cybrex precursor chains. They now provide a one-day Special Project on the discovered homeworld rather than the last event being fired on-survey. This should improve visibility and increase robustness in situations where e.g. the star system changes ownership or is colonized.
* Votes now display as a popup so that they are not as easily missed and auto-declined.
* If you have the "Lost Amoeba" anomaly event, you no longer need to establish communications with space amoebas. That event's options now give you the space amoeba buffs/projects in that case.
* Having claims on a subject now means you can use the Claims casus belli on their overlord.
* Mining Drone Expansion Fleet and Aggressive Drone Expansion Fleet have been reworked such that every 10 years, for as long as the Mining Drones persist, 3 fleets will spawn and seek out suitable systems into which they can expand. The fleets favor systems which lie within 1-6 hyperlane jumps from their system of origin.
* Subjects are no longer able to become presidents of federations through rotation or random succession.
Just one more day, folks! Fingers crossed for this one...