Q3 Roadmap 2023

[coolaj86]

• Are XPubs safe? Or aren't they?
  • "Parents are ALWAYS Private"
  • Parent XPub + Child Private Key = Parent XPrv, regardless of "hardening"
  • see also
    • doc: Are XPubs Safe to Share? DashHD.js#28
    • doc: use practical variable names rather than mathematical notation DashHD.js#29
• XPub (or Wallet Phrase) per customer (Depth 4 XPub is sufficient)
• Depth 3 or Depth 4 XPubs?
  • depth 3 is for internal Account auditing
  • depth 4 is for sharing with Contacts
• swap in new ZeroMQ and new RPC