> For the complete documentation index, see [llms.txt](https://docs.behringer.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.behringer.com/mixers/firmware-release-notes.md). # Firmware Release Notes ## 1.4 (2026-08-13) ### Added * Option to record channels post-processing: tracks recorded to the SD card can now capture the channel signal after the delay, filters, Tilt EQ, digital trim and dynamics, matching the existing option for the USB output. Selectable globally in the Settings section; recording remains pre-processing by default. ### Changed * Session folders and files are now named with the origination date and time (`f4v_YYYY-MM-DD_hh-mm-ss_nn`), taken from the internal date and time clock at the moment recording starts. The `nn` suffix distinguishes files that would otherwise share a name, when two recordings start within the same second * BWF files now carry a fuller broadcast metadata set: a `bext` chunk with Originator, OriginatorReference, OriginationDate, OriginationTime and TimeReference; an `iXML` chunk mirroring those values plus sync-point data; and markers written to `cue`/`adtl` so they appear in DAWs that read WAV cue chunks * Recorded Main Mix now plays back through the main bus instead of the USB/BT channel * Reduced rotary sensitivity for channel faders and headphone level * Reorganized the Recorder, Settings and Timecode screens ### Fixed * Timecode accuracy on affected hardware: units whose clock circuit runs fast are now compensated in the timecode path, bringing generated and stamped timecode into agreement with external references. The unit detects this automatically; units with the corrected circuit are unaffected. This corrects timecode only — it does not change the audio sample rate * Incoming LTC delay reduced by one frame * QR code on the Info screen ## 1.3 (2026-06-18) ### Fixed * OriginationTime and TimeReference in the BWF `bext` chunk were always written as zero; both now carry the recording start time ## 1.2 (2026-03-23) ### Fixed * USB commands ## 1.1 (2026-03-20) ### Changed * All dynamic processors except the channel compressors changed from percentage to threshold in dB ### Fixed * Name of SD/USB media overlapping with media storage in the GUI * Delay value in frames was half of what it actually was --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## 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, and the optional `goal` query parameter: ``` GET https://docs.behringer.com/mixers/firmware-release-notes.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. 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.