We have released LedgerSMB 1.3.22 in response to significant installation issues with new databases under 1.3.21. If you are planning on setting up additional companies, you should probably upgrade.
This release also corrects an issue with midsized databases where certain screens are slow. This was caused by the selection for all years being slow due to a missing index. If the AR/AP transaction screens are very slow, try upgrading here.
The complete changelog is below.