Eric Eastwood 22e1643359 Add warning about known problems when configuring use_frozen_dicts (#19711) ...

Known problems: https://github.com/element-hq/synapse/issues/18117

As a follow-up, we should consider removing this config option
altogether. It's "expensive" and claims to "prevent bugs" but actually
introduces a whole new class of bugs. It could be re-introduced with a
more holistic solution to the typing. Or a completely new approach (safe
mode that blows up when someone mutates the event content, always make
deep clones when handing out references, etc)

The `use_frozen_dict` config option was there [since
inception](https://github.com/element-hq/synapse/commit/a7b65bdedf512f646a3ca2478fb96a914856de35)
but was only recently
[documented](https://github.com/element-hq/synapse/pull/18122) for
completeness sake.

2026-04-24 12:00:13 -05:00

..

v1

Machine-readable config description (#17892)

2025-06-03 10:29:38 +01:00

synapse-config.schema.yaml

Add warning about known problems when configuring use_frozen_dicts (#19711)

2026-04-24 12:00:13 -05:00