# Thunderbird Channels Thunderbird provides releases through four distinct channels, each serving a unique purpose. Below are the channels, their corresponding branches, and a summary of their purpose: * **Thunderbird Daily (comm-central)**: Where development and testing begin, and new features are developed. * **Thunderbird Beta (comm-beta)**: The monthly stabilization release. * **Thunderbird Release (comm-release)**: The official monthly release. * **Thunderbird ESR (comm-esr)**: The official annual extended support release. These four channels offer increasing levels of stability, increasing as code moves from Daily to Beta and being the highest in Release and ESR. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://developer.thunderbird.net/releases/channels.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.