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authorSean Quah <8349537+squahtx@users.noreply.github.com>2021-09-27 12:55:27 +0100
committerGitHub <noreply@github.com>2021-09-27 12:55:27 +0100
commitf7768f62cbf7579a1a91e694f83d47d275373369 (patch)
treea8a605329df286cdc475e25aa537049a52af0c47 /docs
parentFix race conditions when creating media store and config directories (#10913) (diff)
downloadsynapse-f7768f62cbf7579a1a91e694f83d47d275373369.tar.xz
Avoid storing URL cache files in storage providers (#10911)
URL cache files are short-lived and it does not make sense to offload
them (eg. to the cloud) or back them up.
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diff --git a/docs/upgrade.md b/docs/upgrade.md
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@@ -85,6 +85,13 @@ process, for example:
     dpkg -i matrix-synapse-py3_1.3.0+stretch1_amd64.deb
     ```
 
+# Upgrading to v1.44.0
+
+## The URL preview cache is no longer mirrored to storage providers
+The `url_cache/` and `url_cache_thumbnails/` directories in the media store are
+no longer mirrored to storage providers. These two directories can be safely
+deleted from any configured storage providers to reclaim space.
+
 # Upgrading to v1.43.0
 
 ## The spaces summary APIs can now be handled by workers