THis Major Update Changes how Combat and overall distance ishandled to simplify things and to reduce time-consuming passages.
Combat is now overall faster (and dangerous) and has a less focus on referencing Battlemaps, so for those who don't care about them now is easier to keep trakc of it.

NOTE: Creature Compendium, Pre-made Characters and the Foundry World are still being updated. You can technically use the old Creature compendium (v.9.9) but it sitll uses old discarded rules such as movement speed and parry. converting to the new rules is rather simple and the SOLO ADVENTURES also presents the new Stats blocks for NPCs and Monsters (since it was faster to update few npcs and creatures while working on the total conversion.

Core Rules Changelog:
Removed Initiative and Speed since they no longer matter
Chaged the Elf racial bonuses.
Updated the Nereidian Racial Trait.
Updated the description for using skills against multiple creature since its now an active skill check performed by the Character
Updated the Darkvision and Shortsighted trait
Removed the Improved Parry Feat
Rapid Reaction now grants a Superiro Dice when reacting to traps with Agility Checks.
Rapid Reaction Cost increased to 3.
Changed the Cleave Descriptio nto match the new Combat Rules.
Reworked Slugger to be in line with the new Combat Rules.
Improved the Brawler Feat description.
Updated Stabber
Updated the folllowing Feats: Broad Slash, Duelist Awareness, Resist the Pleasure, Riposte Attack
Updated the penalties while carrying Heavy Encumbrance to match the new rules.
Updated the Distract, Lure and Temptation Seduction Move to match the new rules.
Updated the Dual Wielding Rules
Updated the range for Fear and Terror
Reduced the HtH maneuvers to: Grab and Hold, Kncok Down, Pinning and Tackling.
Updated the Frightened, Distracted, Held, Pinned, Slowed, Speeded Up, Stunned, Surprised, Terrorized and Tired Status Effect.
Updated Acts of Faith and Spells to match the new rules.
Improved the description of various spells, especially Lupercal Spells.
Updated the range for Ranged and Throwing Weapons
Updated some Alchemical Items and Potions descriptions

Adventure Compendium Changelog:
Updated rules for movement actiosn such as Jumping and climbing
Updated range for Curses and Blessings.
Updated traps and trap rules.
Improved optional rules for door material
Updaed certain magic items
Updated all the rooms and encounters to the new rules
Improved the Shrine of the Silken Touch Curio
Increased the list of Guard's Reaction for the Guard Post Room
Updated the Lone Hut Location.