Merge tag 'v1.39.0rc3'

Synapse 1.39.0rc3 (2021-07-28)
==============================

Bugfixes
--------

- Fix a bug introduced in Synapse 1.38 which caused an exception at startup when SAML authentication was enabled. ([\#10477](https://github.com/matrix-org/synapse/issues/10477))
- Fix a long-standing bug where Synapse would not inform clients that a device had exhausted its one-time-key pool, potentially causing problems decrypting events. ([\#10485](https://github.com/matrix-org/synapse/issues/10485))
- Fix reporting old R30 stats as R30v2 stats. Introduced in v1.39.0rc1. ([\#10486](https://github.com/matrix-org/synapse/issues/10486))

Internal Changes
----------------

- Fix an error which prevented the Github Actions workflow to build the docker images from running. ([\#10461](https://github.com/matrix-org/synapse/issues/10461))
- Fix release script to correctly version debian changelog when doing RCs. ([\#10465](https://github.com/matrix-org/synapse/issues/10465))

1 files changed, 6 insertions, 6 deletions

diff --git a/synapse/util/caches/deferred_cache.py b/synapse/util/caches/deferred_cache.py
index 1044139119..8c6fafc677 100644
--- a/synapse/util/caches/deferred_cache.py
+++ b/synapse/util/caches/deferred_cache.py
@@ -80,25 +80,25 @@ class DeferredCache(Generic[KT, VT]):
         cache_type = TreeCache if tree else dict
 
         # _pending_deferred_cache maps from the key value to a `CacheEntry` object.
-        self._pending_deferred_cache = (
-            cache_type()
-        )  # type: Union[TreeCache, MutableMapping[KT, CacheEntry]]
+        self._pending_deferred_cache: Union[
+            TreeCache, "MutableMapping[KT, CacheEntry]"
+        ] = cache_type()
 
         def metrics_cb():
             cache_pending_metric.labels(name).set(len(self._pending_deferred_cache))
 
         # cache is used for completed results and maps to the result itself, rather than
         # a Deferred.
-        self.cache = LruCache(
+        self.cache: LruCache[KT, VT] = LruCache(
             max_size=max_entries,
             cache_name=name,
             cache_type=cache_type,
             size_callback=(lambda d: len(d) or 1) if iterable else None,
             metrics_collection_callback=metrics_cb,
             apply_cache_factor_from_config=apply_cache_factor_from_config,
-        )  # type: LruCache[KT, VT]
+        )
 
-        self.thread = None  # type: Optional[threading.Thread]
+        self.thread: Optional[threading.Thread] = None
 
     @property
     def max_entries(self):