Clearbit has introduced several enhancements to its APIs, driven by user feedback, including the addition of versioning, which allows users to specify an API version through a header, enhancing flexibility in managing API updates. The company has also streamlined its combined lookup API by introducing a single webhook that returns both person and company information, replacing the previous dual webhook system, and has added domain alias support to its Company API, enabling proper redirection and identification of all domains associated with a company. Additionally, a new type attribute has been added to Company lookups, which categorizes companies into types like private, public, nonprofit, government, education, and personal, aiding in lead partitioning for targeted markets. To bolster security, Clearbit now includes a X-Request-Signature header in webhook requests to verify authenticity using HMAC, ensuring that webhooks are genuinely from Clearbit, with automatic signature verification available in the Ruby API. All these updates are a direct response to customer requests, emphasizing Clearbit's commitment to continuous improvement based on user needs.