Version: 0.9
- Removed old GK buildings: School of Economics, Cultural Studies, and Military Academy.
- Added new Secular Learning Institute. This is a building you can construct in a city held by an atheist baron. It costs 1,000 gold or more per building/upgrade, and requires an atheist baron at all times or it becomes inactive. While expensive, it is very worth it. Even at level 1, it provides as many tech points as all three prior buildings combined. At level 3 it provides 0.15 tech points in all categories every month, plus a large bonus to tech spread.

This building should be considered beta - please send in any balance/etc feedback you have.

Version 0.8:
- Fixed a bug where vanilla traits granted incorrect amounts of personal combat skill. This was caused by 00_traits.txt being out-of-date. Credit to "spoiledbeetle" for reporting this bug.
- Removed Secular Feudal government form. In concept, it was a way for you to earn extra money (by holding cities directly with no penalty) in exchange for angering religious characters even more. In practice it did not work well. Implementing it required overwriting feudal_governments.txt, and was prone to switching you back to regular feudal whenever you inherited a temple. Credit to "Bombo Crusty" for reporting this bug.
- Improved some decision tooltips, so they are now clearer about what they do.
- Atheist Zeal trait (which you get from "The Purge") now grants 4 martial, instead of 2, now gives you -50 opinion from all religious characters, no longer gives you +5 church opinion, and now actually works.

Version: 0.7
- Atheist rulers can now build the 'Grand University' and 'Great Library' wonders. If they still do not show in the wonder list, you must have another mod that modifies the list. (Suggested by Freeasabird on steam)
- Holy sites have changed. Piraeaus (a small coastal province in Greece) has been replaced by Oxford, and Venice had been replaced by Bagdad. (based on suggestion by Ograe on reddit)
- Secular Feudal governments can now build temples, but suffer an extra -10 opinion from all religious characters. This was necessary as the previous 'cannot build temples' rule prevented you from developing provinces in some situations. (based on issue report by DJ diiner ott on steam)

v0.6.1
- hotfix to prevent crashes caused by the latest official patch

v0.6 changes:
- Fix: Feudal vassals under a secular feudal liege no longer have an opinion penalty against their liege.
- Del: The 'Atheist Movement' and 'Purger' traits have been removed.
- Add: 'Atheist Rationality' trait, which is like cynical, except it further increases AI decision-making intelligence, and does not reduce opinions or piety.
- Add: 'Atheist Zeal' trait, which is like zealous, except that it also grants 2 martial and has no penalty to AI decision-making intelligence.
- Add: Atheist player characters can now trade in the 'cynical' trait for 'Atheist Rationality' and the 'zealous' trait for 'Atheist Zeal'. AI characters will always do this quickly. This should eliminate cynical/zealous traits showing up on AI atheist characters.
- Tweak: The number of independent atheist realms that the AI will create has been reduced, from 2 to 1.

v0.5 Changelog:

This update changes the process by which rulers start establishing an atheist realm.

The new process is:
1) Question Faith: This decision requires you be at least age 6, and gives you the 'cynical' trait. After taking this, you are a secret atheist.
2) Declare Atheism: This decision has your character start saying publicly that no gods exist. It makes your atheism public, and enables atheist game mechanics, like stat bonuses, CBs, etc, and other religions disliking you intensely.
3) Request Conversions: This one is like using "Demand Religious Conversion" on every courtier/vassal you have who is likely to accept. It won't cause any negative results, and will probably give you a bunch of new allies. You should really have been trying to get cynical characters in positions of power well in advance of using this decision, so that this decision will convert them all at once when the time is right.
4) Consolidate Power: This decision is optional, but helpful. It fires all council members and minor title holders who might use their positions to plot against you. It mostly exists to save you time in your quest to stabilize your realm and prevent people plotting against you.
5) The Purge: This last decision forces all your direct vassals to pick a side. Either they become atheists, or they become zealots who defend their faith. It will likely cause a civil war. Notably, however, unlike in previous versions it does not force them to declare war on you. It merely gives them incentives to do so. They'll now attack you when they think the time is right, making it more risky than in previous versions, but also more potentially helpful in that it can now possibly convert people who can't be won over through normal means.

The main benefits of this new way of doing things are:
A) Firing councilors is no longer automatic, and has been split off into its own decision.
B) You can now become a secret atheist at will using Question Faith.
C) The Purge has been reworked a great deal. It now has more potential upsides (can convert people who would not normally accept a conversion request) but also downsides (it can end up making the majority of your vassals want you dead). The purge works best when used in a large realm which is almost entirely converted already. Using it in a smaller realm when you don't have allies is very risky.

v0.4:
- AI rulers must now be brave (or have an atheist liege) to become atheist.
- Opinion penalties from religious characters to non-religious ones are now more severe: -20 instead of the old -10. This will make atheist realms less stable, especially when surrounded by religious realms.

v0.3

Fixes:
- The 'does not control a religion' pre-condition for conversion to atheism is now visible in the interface. This prevents certain characters (e.g: some muslim caliphs) from never having the decision available, and not knowing why.
- Imprisoned zealous vassals no longer declare war on you during a purge. That resulted in wars they instantly lost.

Features & Balance Changes:
- "Owes you a favor" is no longer a valid reason for a vassal to automatically convert to atheism when you ask them.
- Secular Feudal government type is now optional for atheists. Switching to it requires that you hold no temples. Switching back from it (to regular feudal) is always available. If you acquire a temple holding from another ruler, such as by taking their titles, you will drop back to regular feudal until you get rid of the temple title, at which point you can switch back to secular feudal again.
- Atheist characters can no longer hold temple-type holdings (bishoprics, etc) without suffering a penalty.