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Version: v2.12

Releases and Versioning Policy

Tobira is released via GitHub releases.

We only maintain one branch and thus only have one release track. In other words: we don't backport bugfixes or other patches. Only the latest version is officially supported.

Tobira version identifiers look like x.y, e.g. 3.12.

  • x: main version number. Is increased for releases that contain new features, major UI changes, or any other significant changes.
  • y: patch version number. Is increased for releases that only contain bugfixes and other minor changes. Is reset to 0 whenever x is increased.

Important: the version is simply an identifier that's easy to communicate and useful for "marketing". You must not rely on these numbers to derive any information about breaking changes or ease of updating. This is not SemVer!

However, we do care a lot about providing you with all relevant information about breaking changes! Every release mentions all potentially breaking changes in its release notes.



Provided release binaries​

We currently provide pre-built binaries for x86_64-unknown-linux-gnu and x86_64-unknown-linux-musl. Both are supported and should work fine.

The -gnu build relies on dynamically linked libraries on your system. We create that build on the oldest supported Ubuntu runner of GitHub actions, which is currently 20.04. Our release binary could require a glibc version up to the one on that runner, which is currently 2.31. In general, the dynamic library version requirements could change with any release. If your server doesn't have those libraries, consider using the -musl build or compiling Tobira yourself.

Breaking and non-breaking changes​

Our definition of these terms for Tobira. Defines what we guarantee and what we don't.

Breaking changes/stability guarantees​

We consider the following changes as breaking, highlighting them in changelogs.

  • config: Changing the configuration file in a backwards-incompatible way.
  • auth: Changing the auth-system in a backwards-incompatible way.
  • cli: Changing the command line interface in a backwards-incompatible way.
  • meili: Requiring a new version of MeiliSearch.
  • pg: Dropping support for a non-EOL version of PostgreSQL.
  • oc-version: Requiring a new Opencast version (often by requiring a newer version of the Tobira module).
  • oc-requirement: Adding new Opencast requirements (e.g. having static-file authorization disabled).

Non-breaking changes​

All changes not listed in the previous section are considered non-breaking by us. We may release these changes at any time. To name a few things explicitly (this is not a complete list!):

  • Any changes to the GraphQL API. This API is internal and we will break it very regularly.
  • Any changes to emitted HTML, DOM nodes, CSS, and JS.
  • Any user-facing changes, like adding/removing/changing features, changing the design, ...
  • Database schema changes: we always provide scripts to easily migrate the database. Tobira automatically runs the appropriate scripts when starting, so you don't have to do anything.
  • Anything that requires a search index rebuild. These rebuilds will be performed automatically after updating Tobira and should be done within a few seconds (for tens of thousands of events/series).