Open Chronology Files

Changes since v0.21.1.

Early release. In SemVer terms, anything may change before 1.0, including file formats, the HTTP API and settings, though changes to .ochx and .och files will come with conversions.

Added

• Links to other timelines (#422). A moment or duration can link to a moment or duration on another timeline, or to another timeline as a whole.
• Where they show: in the event's details under On other timelines, and in a comparison as arcs between the timelines' tracks.
• Who can link: linking and removing a link need permission to edit both timelines. A link to a private timeline is shown only to those who can read it.
• On the website: the pages search engines read list each link at both ends. A timeline's page lists what links to it as a whole, under Linked from. IndexNow announces both pages when a link is added or removed.
• The limit: each timeline may have at most TIMELINE_LINK_LIMIT links (10,000 by default).
• Explore searches every timeline, moment and duration (#459). One search field across Explore finds timelines and their events by their titles and notes.
• Highlighting: the words searched for are highlighted. An event's notes are shown from where they match.
• Filters: folded away under Filters until opened. They choose what to show, a tag, The whole library or My timelines, and the timelines' order.
• Signed in: a search with words also finds your private timelines and those shared with you.
• API: the new POST /api/timelines/entities/search.
• One picker for relationships and links. Add a relationship… and Link to another timeline… open the same dialog, with Search and Address tabs.
• Search works as Explore's does. To link, it offers only timelines you can edit that are below the link limit, never the timeline you're on.
• Address reads a pasted page address, link fragment, embed or editor address, and says why it can't be used if it can't.
• AUR packages for Arch Linux (#331): openchronology-server and openchronology-desktop-bin, published with stable releases.
• Nix and NixOS (#461). The repository is a Nix flake (docs/nix.md (github.com)).
• Packages: the server, the desktop app, och-convert and pgmp, built from source for x86_64 and aarch64 Linux.
• NixOS module: services.openchronology runs a server with PostgreSQL and an optional nginx virtual host.
• Without flakes: default.nix serves nix-env and nix-build.
• Desktop thumbnails (#442). The desktop app shows thumbnails of videos, and of HEIC, AVIF and raw photos that carry no preview of their own.

Upgrading

Install the new package and run openchronology-migrate as usual. The migration adds the tables of links between timelines and their counts, and an index for searching durations. TIMELINE_LINK_LIMIT is a new optional setting.