takahe/docs/releases/0.10.rst

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0.10
====
*Released: Not Yet Released*
This release is a polish release that is prepping us for the road to 1.0.
This release's major changes:
* Stator, the background task system, has been significantly reworked to require
smaller indexes, spend less time scheduling, and has had most of its async
nature removed, as this both reduces deadlocks and improves performance in
most situations (the context switching was costing more than the gains from
talking to other servers asynchronously).
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* Old remote posts are now automatically pruned out of the database after a
configurable horizon time, defaulting to 90 days. Posts from local users and
posts that have been interacted with (liked, boosted, pinned) by local users
are never deleted. You can change the deletion horizon with the
``TAKAHE_REMOTE_PRUNE_HORIZON`` setting.
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Minor changes also include:
* Followers-only mode now works correctly inbound and outbound (though outbound
may need the other server to refresh the profile first).
* Profile pages are no longer shown for remote identities; instead, users are
linked or redirected directly to the remote profile page.
* Inbound migration has been implemented, but is disabled by default as outbound
migration is not yet complete, and we don't want to release a system that
captures users with no outward path. If you *really* want to enable it, set
``TAKAHE_ALLOW_USER_MIGRATION=true`` in your environment.
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* Federation compatibility has been improved with several other servers.
* Blocked domains now receive absolutely zero fetches from Takahē; previously,
they were still pinged occasionally to see if they were online.
* SMTP servers that don't require authentication are now supported.
* Python 3.11 is now the minimum version required; this will not affect you at
all if you run Takahē via a docker image, as is recommended.
If you'd like to help with code, design, or other areas, see
:doc:`/contributing` to see how to get in touch.
You can download images from `Docker Hub <https://hub.docker.com/r/jointakahe/takahe>`_,
or use the image name ``jointakahe/takahe:0.10``.
Upgrade Notes
-------------
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Remote Pruning
~~~~~~~~~~~~~~
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Post pruning is now in and comes *enabled by default*, as it is not directly
destructive (it will only delete content that has not been interacted with
locally and which can be re-fetched).
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Nevertheless, if you want to avoid post deletion triggering on your server at
all, you should set the ``TAKAHE_REMOTE_PRUNE_HORIZON`` environment variable to
``0``.
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Migrations
~~~~~~~~~~
There are new database migrations; they are backwards-compatible, but contain
very significant index changes to all of the main tables that may cause the
PostgreSQL deadlock detector to trigger if you attempt to apply them while your
site is live.
We recommend:
* Temporarily stopping all instances of the webserver and Stator
* Applying the migration (should be less than a few minutes on most installs)
* Restarting the instances of webserver and Stator