Nuclear Reactor cost 90k instead of 60k
Needed air superiority for a tactical bomber to be able to nuke a province is now 0.9 (0.75 before)
Women in the Workforce now gives +0.5% conscription instead of +3%
First land doctrine is now free (allow nation to change doctrine)

UK
Shadow Scheme now gives +10% construction instead of +10% construction for millitary factories (because UK can't get early mobilisation from the civil war anymore)
Amphibious focus now gives +5% special forces capacity
Need to be at war to do the Aircraft Production focus (no longer requires the french surrender)

China
Can do the "One China" focus in 38 if Japan didn't attack (allow China to get bigger if Japan isn't attacking as he is supposed to)

Germany
Rubber focus which add 2 rubber per refinery reduce oil production by 2

Romania
Rebuild the country focus now takes 35 days instead of 70

Soviet
Five year plan give +15% construction for civilian factories and infrastructure instead of +10% but lower the production by 5% and the efficiency gain by 10%
Peoples Commissariat focus gives +10% efficiency gain, +10% efficiency cap and +10% ressources extraction (in addition to the old bonuses)

USA
Wartime industry focus give +20% efficiency gain instead of +10% efficiency start

Siam
Modernization focus gives +10% stability (in addition to the old bonuses)
Plaek Phibunsongkhram isn't op anymore (used to have more skills than level allowed)

Compatibility for 1.5.2

Synthetic Refinery get 0.75 damage from bombing instead of 1
Ground air support is the same as in 1.5.1 (0.3 instead of 0.25)

Spanish Civil war gives 1% threat (0% before) in order to let UK gets "Shadow Scheme" focus.

British air production focus gives +15% instead of +10% but can't be done before the fall of France or the year 1940.

Free France gets a new focus called "Lessons of War".
French air focus for fighters and bombers give +25% bonus instead of +50%.

German focus tree reworked (changed position and duration of some focus).
Germany gets a new focus to invest (by decisions) in the Romanian oil fields and to take control over the Romanian oil production.

Japanese focus tree reworked (changed duration of some focus).
Fixed Japanese bicycle batallion.

Rebalancing the battle of France air war :
Added one new air region in northern France.
Balaning the position and quantity of airports in northern France and western Germany.

Free France gets a stability boost once "Appel du 18 juin" focus is done

Marshal can take care of 120 divisions instead of 40, but the promotion cost in higher

Air ground crews boost now gives +5% instead of +10%

Stalin must be the leader of USSR to do the "Order 227" focus

Logistic skill gives +1% per level instead of +2.5%

Removed Industrial strike, mutiny,...

Strategic bomber targeting is 50% lower than before

New General with unique portrait for Italy : Italo Gariboldi

New General with unique portrait for Finland : Carl Gustaf Mannerheim

Fixed bug with Sudetenland

The eastern reichskommissariat should work fine now (even if USSR did not capitulate)

Special forces capacity changed :
Japan start with +5% and can go up to +10% by focuses
USA can go up to +20% by focus
France, UK and all the nations from the commonwealth can go up to +10% (depending on US choice on "Prepare for D-Day" event)

Content from original ww2 rebalanced (see original ww2 rebalanced changelog for more information)
Removed non historical formable nations
Infrastructures give +4% ressources instead of +10%
Germany start with +5% special forces capacity idea
New flags for the Reichskommissariat
Reworked ressources
Soft attack from version 1.4.2
Reworked focus tree for Japan, Germany and all the Chinese nation
Removed all unhistorical decision
40 divisions per generals instead of 24
Removed Sichuan clique and Xikang (for now)
34' heavy tank destroyer can't pierce 43' medium tank anymore
Changed "National unity factor" by "Surrender limit", "Stability factor" or "War support factor"
Gave back core to Belarus and Ukraine (needed for the new German focus tree)