Add notes when config options were changed to config documentation (#13314)

Signed-off-by: Jörg Behrmann <behrmann@physik.fu-berlin.de>
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Jörg Behrmann 2022-07-19 14:36:29 +02:00 committed by GitHub
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Add notes when config options where changed. Contributed by @behrmann.

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@ -239,6 +239,8 @@ If this option is provided, it parses the given yaml to json and
serves it on `/.well-known/matrix/client` endpoint
alongside the standard properties.
*Added in Synapse 1.62.0.*
Example configuration:
```yaml
extra_well_known_client_content :
@ -1155,6 +1157,9 @@ Caching can be configured through the following sub-options:
with intermittent connections, at the cost of higher memory usage.
A value of zero means that sync responses are not cached.
Defaults to 2m.
*Changed in Synapse 1.62.0*: The default was changed from 0 to 2m.
* `cache_autotuning` and its sub-options `max_cache_memory_usage`, `target_cache_memory_usage`, and
`min_cache_ttl` work in conjunction with each other to maintain a balance between cache memory
usage and cache entry availability. You must be using [jemalloc](https://github.com/matrix-org/synapse#help-synapse-is-slow-and-eats-all-my-ramcpu)