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  Halkyon Learn 0.21.0 Stable

  raisondetredev released this 2026-10-26 11:50:40 +01:00 | 414 commits to main since this release

  Signed by raisondetredev

  GPG key ID: 07F6FCF405488B64

  Halkyon Learn 0.21.0 for Android and Linux. Both connect to learn.halkyon.eu, the project's instance.

  Features

  • GitHub signs nobody in any more (ADR 0020, D36)
  • sign-ups as the operator says, waiting accounts, operators (ADR 0021, step 1)
  • a wait screen for accounts that wait for the operator (ADR 0021, step 1)
  • the operator's "This instance" card, screen and badge (ADR 0021, step 1)
  • halkyon_llm, language models' APIs streamed over plain HTTP (ADR 0021, step 2)
  • the operator's assistants, and the instance's privacy page (ADR 0021, step 2)
  • the assistants in Settings and on the operator's screen
  • conversations with assistants, kept sealed (ADR 0021, step 3)
  • what an assistant may look up, and what it is told
  • asking an assistant in a conversation
  • the assistant answers in the field
  • a private studyset goes to an assistant only once agreed
  • an assistant explains a card missed and checks what was written
  • an assistant proposes flashcards from a text, a note or a PDF page
  • an assistant reads PDFs' pages, and sees images the person chooses or approves
  • the image an assistant asks to see shows beside the question
  • LanguageTool as a sidecar, reached through the server
  • spelling and grammar checked as people write (ADR 0024)

  Fixes

  • Settings no longer jumps while scrolled up slowly
  • the German privacy page names no "Betreiber"
  • an editor with nobody signed in above it checks nothing

  Installing

  • Android: halkyon-learn-0.21.0.apk, one APK for every phone, signed with the app's key; the SHA-256 of its certificate is 27e243fcbdc826ff98ab7dbb10436c98c3bea24b2a015e94e4cfc7d1fc2a006c.
  • F-Droid: the same APK in the repository https://halkyon.app/fdroid/repo?fingerprint=E8082788756F6B7E682AA22FCEAD24B53E2A8B0912AD66D65E8C2D4F07BB94B0
  • Linux: halkyon-learn_0.21.0_amd64.snap, also in the Snap Store: snap install halkyon-learn --edge.

  SHA256SUMS lists the files' checksums, signed with the GPG key B172B9ED76A32EBCABA24A9F07F6FCF405488B64 (SHA256SUMS.asc).

  Downloads

  • SHA256SUMS
    1 download · 2026-10-26 12:12:01 +01:00 · 189 B
  • SHA256SUMS.asc
    1 download · 2026-10-26 12:12:01 +01:00 · 228 B
  • halkyon-learn-0.21.0.apk
    0 downloads · 2026-10-26 12:11:34 +01:00 · 93 MiB
  • halkyon-learn_0.21.0_amd64.snap
    2 downloads · 2026-10-26 12:12:01 +01:00 · 84 MiB