Blood Angels were almost codex compliant before, it turns out, so not a lot of changes were needed. They only gained access to a few units that aren't brand new in 9e.

Datasheet Changes

• Chief Librarian Mephiston (Primaris Version)
• Death Company Intercessors (New Datasheet)

New Access to Existing Space Marine Datasheets

• Apothecary
  • Technically the same as the "Sanguinary Novitiate"
• Ancient in Terminator Armor
  • The same as the "Terminator Ancient", but now everyone has it, not just BA
• Centurion Assault Squad
• Ironclad Dreadnought
• Centurion Devastator Squad
• Thunderfire Cannon

New Space Marine Datasheets

• Primaris Techmarine
• Assault Intercessor Squad
• Heavy Intercessor Squad
• Bladeguard Ancient
• Veteran Intercessor Squad
• Bladeguard Veteran Squad
• Judiciar
• Outrider Squad
• Invader ATV Squad
• Storm Speeder Hailstrike
• Storm Speeder Thunderstrike
• Storm Speeder Hammerstrike
• Eradicator Squad
• Firestrike Servo-Turrets
• Gladiator Lancer
• Gladiator Reaper
• Gladiator Valiant
• Hammerfall Bunker