mautrix/go v0.27.0 on GitHub

(crypto) Changed GetOwnCrossSigningPublicKeys to return errors instead of only logging them and returning nil.
(event) Removed automatic registrations of content structs to encoding/gob. If you use mautrix types with gob, you'll have to register the structs yourself.
(crypto) Removed unused Olm PK encryption/decryption interface.
(crypto/goolm) Removed unused JSON pickling methods.

(client) Added support for MSC4446 for moving m.fully_read backwards.
(appservice) Added support for escaped paths in HTTP over websocket proxy.
(synapseadmin) Added wrapper for redacting all events from a specific user (thanks to @nexy7574 in #466).
(event) Added types for MSC2545 image packs.
(bridgev2) Added option to block automatic portal creation for specific chats and/or users.
(bridgev2) Added commands to bridge existing groups to existing rooms and to create new portal rooms for existing groups.
(bridgev2) Added option to always prefer default relays for the bridge and set-relay commands.
(bridgev2) Added support for using MSC4437 for ghost profile updates.
(bridgev2) Added optional GetStateEvent method to ASIntent to get state while respecting room membership.
(bridgev2/mxmain) Added environment variables to change global values like the portal event buffer size.
(event) Changed EnsureHasHTML to also ensure the body is treated as a caption for media messages.
(bridgev2) Changed relay mode to treat stickers as normal images.
(bridgev2/matrix) Changed various start methods to return ExitErrors instead of calling os.Exit directly.
(client) Changed sync response structs to use omitzero instead of custom JSON marshaling functions.

(crypto/goolm) Fixed various issues.
(crypto) Fixed new Olm session handling to only delete one-time keys after successfully decrypting a message.
(crypto) Fixed ResolveTrust not checking trust status of cross-signing keys correctly.
(crypto) Fixed m.relates_to copying not working for some inputs with goolm.
(event) Fixed Content.UnmarshalJSON incorrectly keeping a reference to the input data.
(format) Fixed math blocks not being routed to correct convert function.
(bridgev2) Fixed sending tombstone when redirecting a portal to another room.
(bridgev2) Fixed removed messages/reactions not being removed from database.
(bridgev2) Fixed race conditions where portal ID changes could result in a duplicate room being created.
(bridgev2/mxmain) Fixed some types of config fields not being settable with environment variables.
(appservice) Fixed redundant mx_registrations database query on every request.