Might & Guile is updated to version 5.7 with improvements/fixes for the Samurai kit

Faiths & Powers is updated to version 0.86.6 with improved compatibility for new spells added by SCS and ToF

5E Spellcasting is updated to version 2.5.2 with some minor fixes and improved compatibility for new spells added by SCS and ToF

The Unearthed Arcana series of mods represent a number of changes and additions to the way classes work in the Baldur's Gate games:

• Might & Guile offers new kits and various class improvements for fighters, rangers, thieves, and bards.
  
• Tome & Blood offers new sorcerer kits and various improvements and new mechanics for mages and sorcerers.
  
• Faiths & Powers offers many new priest kits, divine spellcasting changes, new kits and archetypes for paladins, and even more kits for multiclass priests - including more multiclass druids.
  
• Will to Power adds a 2E-inspired "psionics is not magic" point-based psionics system to the game, along with psion kits and even wild talents for non-psions.
  
• 5th Edition Spellcasting allows mages/bards/priests to cast spells with 5th Edition rules: you memorize a certain subset of spells, but then you can cast them interchangeably.
  
• Magic Battles Revised streamlines the arcane "magic duel" system, making it a bit quicker, and more sensible.
  
• BP-in-BG inserts the Black Pits 1 campaign into the regular Baldur's Gate game.
  

Taken together, these mods represent a unified vision of how all the game's classes can operate and interact in new and improved ways. However because everyone's taste is different, they are designed to be as modular as possible, allowing players to pick and choose from among different tweaks and improvements. Compatibility with other mods is maximized wherever possible.