UnblockConf '21 is an inaugural virtual developer conference that is free to attend and spans three days, starting November 15. It features two keynotes, six engineering talks, and eight technical webinars, with speakers from notable companies such as Bazel, Lyft, Shopify, Pinterest, and Wayfair. Buildkite will host two keynotes, while technical webinars will include collaborations with AWS, Honeycomb, PagerDuty, and Datadog. After the presentations on the first two days, a Q&A panel will allow attendees to engage with speakers for further insights and community interaction. The event also includes a celebratory afterparty in Skittish, encouraging participants to explore a virtual world with avatars and enjoy games. The conference aims to unite the developer community for knowledge sharing and networking, with free registration available online.