Breaking changes:

• mastodon: Switch AS1 actor and object ids from tag: URIs to the real AS2 ids.

Non-breaking changes:

• as1:
  • prefix_urls: handle string values.
  • is_public: return False for public CRUD activities on non-public objects.
  • is_dm/recipient_if_dm: allow DMs with recipient in cc instead of to; evidently NeoDB sends DMs like this.
  • targets: add quoted posts, ie attachments with objectType: note.
  • Add new quoted_posts, mentions functions.
• as2:
  • Add support for pinned posts via the featured collection.
  • Handle replies as a collection in both from_as1 and to_as1.
  • from_as1:
    • Add rel="tag" to hashtag HTML links and class="h-card" to mentions in content to prevent Mastodon from generating link previews for them.
  • to_as1:
    • Handle bare string attachment values.
    • Handle multiply-valued type.
  • is_server_actor: return False for id URLs with query parameters.
  • Add new URL_RE constant.
• bluesky:
  • Add pds_url, **requests_kwargs kwargs to Bluesky constructor.
  • Convert followersCount/followsCount in app.bsky.actor.defs#profileViewDetailed to the non-standard followers and following AS1 collections (borrowed from ActivityPub).
  • Convert pinned posts (just one per actor) between Bluesky's pinnedPost field and the fediverse's featured collection.
  • Switch getFollows/getFollowers calls from PDS to AppView. (These requests to Bluesky PDSes were timing out connection from Google Cloud IPs as of 2025-05-08.)
  • from_as1:
    • If content is in a language that doesn't delimit words by spaces, truncate between any characters (snarfed/bridgy-fed#1625).
    • Bug fix: handle bare string image.
    • Bug fix for when last line of content is a bsky.app URL that's not a post (bridgy-fed#2064).
  • to_as1:
    • Bug fix, handle facets with bad indices (in the middle of Unicode code points) interacting with HTML characters.
    • Better error handling when embed record $type is invalid.
  • web_url_to_at_uri and BSKY_APP_URL_RE: tighten validation, check authority and rkey for allowed characters.
• mastodon:
  • Convert followers_count/following_count in Mastodon accounts to the non-standard followers and following AS1 collections (borrowed from ActivityPub).
  • Add **requests_kwargs to Bluesky constructor.
• microformats2:
  • from_as1: for quote posts (note attachments), populate their id into url, not uid (bridgy-fed#2045).
  • to_as1:
    • Bug fix: handle u-bookmark-of h-cite (#918).
    • Only populate u-url into url if it's a valid URL.
• nostr:
  • Add new nip05_to_npub function to resolve NIP-05 identifiers.
  • Add new bech32_decode, bech32_encode, bech32_prefix_for, pubkey_from_privkey, uri_for functions.
  • Add new verify function to verify event signatures.
  • Add NIP-24 support for additional tags and fields in profiles.
  • Add NIP-92/94 support for imeta tags for images, video, audio.
  • from_as1:
    • Add optional new privkey kwarg to sign output events and populate pubkey with.
    • Add optional new from_protocol kwarg for setting NIP-48 proxy tags in output events.
    • When converting created_at to published, include UTC timezone.
    • When converting actors to kind 0 Nostr events, remove unset fields from content instead of setting them to null, and only use _ NIP-05 username with full domains.
    • Don't escape Unicode characters (background).
    • Convert HTML content to Markdown plain text.
  • Nostr:
    • Add new user_url method.
    • Add optional new privkey kwarg to constructor to sign events with; remove pubkey kwarg.
    • create now signs activities before sending to relays. Now requires the privkey member attribute to be set.
    • query:
      • Verify signatures; discard events with invalid signatures.
      • Add NIP-42 support; reply to AUTH challenges with signatures from the stored privkey.
• rss:
  • to_as1: handle UNIX timestamp dcterms:modified values without overflowing.