We have just uploaded a minor update (Documentation Insight V3.10.6.1) to support Delphi 10.4 and custom managed records. You can download it from Downloads
(VirusTotal: https://www.virustotal.com/gui/file/a1e8578dccf4b0674ed92688a9173f4cc13d54f462737dafbfa2b8d5356c4a31/details )
NOTE: We are going to launch a sneak preview about the next major version ( DocInsight 5 ) in a few weeks, please stay tuned.