Minor patch:
-Fixes
-Portraits
-more gfx
-more ideas
-more events
-Start of the Russian Revolution depends on stability and communism support
-Korean content
-Changed Belgian pacifism idea - it will be more dynamic
-Changed Generic Focus Tree

American Update, but not only America.
-USA focus tree
-Canadian focus tree
-Brazilian focus tree
-Turkish, Russian, Australian focus improvements
-Soviet Russian Empire? Russian Manchuria for Russian-german path.
-Bunch of cosmetic tags.
-Added +300 new events (for Ireland, Serbia, UK, Turkey, Russia, Germany, Canada, USA, Brazil, South Americans, Alternative collapses of empires...)
-Removed +300 startup errors
-Fix of GW Treaty
-Interface fixes
-Smth else, do not remember

ok, this is real 1.9.3 patch
-Bosnia, Hejaz are dead
-British focus tree
-Dutch focus tree
-Events for Great Depression
-Random advisor portraits
-Tech and equipment rebalance
-New portraits
-Small buff for Turks
-Pink Germany

1.9.2 mini-patch
-Free Banking & Bankers' Panic Ideas for USA
-some minor fixes
-Battle News Events: Brusilov Offensive, Verdun and Somme
-Now Russian focus "National Self-Determination" makes dominions from russian non-titular territories (If you have MTG or TFV dlc)

Small patch. Please, start new game, don't load old save on this version!
-New portraits
-New states in South America (preparation for Brazilian update)
-Improved map: corrected Balkan states, South America, Libya and Cameroon
-New models for USA, Canada and Latin American units
-мinor improvements

Ottoman patch
-Turkish focus tree (thanks Ahmet Samet)
-Small Chinese focus tree
-New portraits for Nicholas II, Raymond Poincare, Armand Fallieres, ottoman leaders, etc
-Bunch of new icons
-New state in Brazil
-Correction of province borders
-Mexican Border War
-Decisions of US congress returned (without Congress system)
-Native American wars events
-Russian Persian Campaign of 1909-1911.
-Completed interwar focuses of Germany (thanks SilentEnforcer)
-Completed German Alternative path decisions
-Decreased bonuses for OHL idea
-and something else, i don't remember

Small patch.
-Correction of original TGW focuses
-New balance. Increased artillery cost. Reduced artillery damage.
-National cores of colonial nations.
-Special rule for colonial Empires: blocking release of puppets/nations before the Great War.
-New generals and admirals for Italy, Canada, USA, Britain.
-Cosmetic fixes (new flags, portraits)