# Reference

- [Accounts](/main/development/reference/accounts.md): Various account types in Squads V4, and how to derive them.
- [Permissions](/main/development/reference/permissions.md): Limit members to certain interactions
- [Spending Limits](/main/development/reference/spending-limits.md)
- [Time-locks](/main/development/reference/time-locks.md)
- [SDKs](/main/development/reference/sdks.md)
- [Controlled Multisigs](/main/development/reference/controlled-multisigs.md): Understanding Config Authority with Squads