v409

• Release specs are identical.

v408

• Add support for automatic_tax on Subscription#list

v407

• Add support for numeric and text on PaymentLink.custom_fields[]

v406

• Release specs are identical.

v405

Release specs are identical.

v403

• Release specs are identical.

v402

Release specs are identical.

v401

• Release specs are identical.

v400

• Release specs are identical.

v399

• Add support for effective_at on CreditNote#create, CreditNote#preview_lines, CreditNote#preview, CreditNote, Invoice#create, Invoice#update, and Invoice