diff --git a/akka-actor/src/main/mima-filters/2.5.12.backwards.excludes b/akka-actor/src/main/mima-filters/2.5.12.backwards.excludes
index 74eb46e7e5..9967955af6 100644
--- a/akka-actor/src/main/mima-filters/2.5.12.backwards.excludes
+++ b/akka-actor/src/main/mima-filters/2.5.12.backwards.excludes
@@ -8,3 +8,6 @@ ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.actor.AbstractActor#A
 # #24989 Fix NotInfluenceReceiveTimeout behavior when used with Timers trait
 ProblemFilters.exclude[IncompatibleTemplateDefProblem]("akka.actor.TimerSchedulerImpl$TimerMsg")
 ProblemFilters.exclude[MissingClassProblem]("akka.actor.TimerSchedulerImpl$TimerMsg$")
+
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.serialization.Serialization.withTransportInformation")
diff --git a/akka-actor/src/main/mima-filters/2.5.17.backwards.excludes b/akka-actor/src/main/mima-filters/2.5.17.backwards.excludes
index 0a83e47279..0c031377c9 100644
--- a/akka-actor/src/main/mima-filters/2.5.17.backwards.excludes
+++ b/akka-actor/src/main/mima-filters/2.5.17.backwards.excludes
@@ -14,3 +14,15 @@ ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.dns.CNameRecord.writ
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.dns.AAAARecord.write")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.dns.ResourceRecord.write")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.dns.SRVRecord.write")
+
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.actor.CoordinatedShutdown.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.actor.TypedActor.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.event.AddressTerminatedTopic.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.Tcp.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.UdpConnected.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.Dns.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.io.Udp.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.pattern.CircuitBreaker.convertJavaFailureFnToScala")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.serialization.SerializationExtension.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.util.ManifestInfo.get")
diff --git a/akka-actor/src/main/mima-filters/2.5.24.backwards.excludes b/akka-actor/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-actor/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-actor/src/main/mima-filters/2.5.25.backwards.excludes b/akka-actor/src/main/mima-filters/2.5.25.backwards.excludes
new file mode 100644
index 0000000000..3c04f0f291
--- /dev/null
+++ b/akka-actor/src/main/mima-filters/2.5.25.backwards.excludes
@@ -0,0 +1,4 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleResultTypeProblem]("akka.actor.TypedActor.apply")
+## TimerMode parameter
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.actor.FSM#Timer.unapply")
diff --git a/akka-actor/src/main/mima-filters/2.5.x.backwards.excludes b/akka-actor/src/main/mima-filters/2.5.x.backwards.excludes
index d61bce31b5..745e6f9664 100644
--- a/akka-actor/src/main/mima-filters/2.5.x.backwards.excludes
+++ b/akka-actor/src/main/mima-filters/2.5.x.backwards.excludes
@@ -55,8 +55,8 @@ ProblemFilters.exclude[MissingClassProblem]("akka.actor.UntypedActorWithStash")
 ProblemFilters.exclude[MissingClassProblem]("akka.actor.UntypedActorWithUnrestrictedStash")
 ProblemFilters.exclude[MissingClassProblem]("akka.actor.UntypedActorContext")
 ProblemFilters.exclude[MissingClassProblem]("akka.actor.ExtensionKey")
-ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.event.LoggingReceive.create")
-ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.event.Logging.getLogger")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.event.LoggingReceive.create")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.event.Logging.getLogger")
 ProblemFilters.exclude[MissingTypesProblem]("akka.routing.RoutedActorCell")
 ProblemFilters.exclude[MissingTypesProblem]("akka.routing.ResizablePoolCell")
 
@@ -76,9 +76,9 @@ ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.actor.TimerScheduler.
 # Remove deprecated features
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.actor.AbstractActor#ActorContext.getChild")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.actor.ActorIdentity.getRef")
-ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.pattern.CircuitBreaker.onClose")
-ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.pattern.CircuitBreaker.onOpen")
-ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.pattern.CircuitBreaker.onHalfOpen")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.pattern.CircuitBreaker.onClose")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.pattern.CircuitBreaker.onOpen")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.pattern.CircuitBreaker.onHalfOpen")
 
 # streamref serialization #27304
 ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.actor.DynamicAccess.classIsOnClasspath")
@@ -87,4 +87,4 @@ ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.actor.DynamicAccess.c
 ProblemFilters.exclude[InheritedNewAbstractMethodProblem]("akka.actor.ExtendedActorSystem.classicSystem")
 ProblemFilters.exclude[InheritedNewAbstractMethodProblem]("akka.actor.ActorSystem.classicSystem")
 ProblemFilters.exclude[InheritedNewAbstractMethodProblem]("akka.actor.AbstractActor#ActorContext.classicActorContext")
-ProblemFilters.exclude[InheritedNewAbstractMethodProblem]("akka.actor.ActorContext.classicActorContext")
\ No newline at end of file
+ProblemFilters.exclude[InheritedNewAbstractMethodProblem]("akka.actor.ActorContext.classicActorContext")
diff --git a/akka-cluster-metrics/src/main/mima-filters/2.5.17.backwards.excludes b/akka-cluster-metrics/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..3e059e2334
--- /dev/null
+++ b/akka-cluster-metrics/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.metrics.ClusterMetricsExtension.get")
diff --git a/akka-cluster-metrics/src/main/mima-filters/2.5.24.backwards.excludes b/akka-cluster-metrics/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-cluster-metrics/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-cluster-sharding/src/main/mima-filters/2.5.17.backwards.excludes b/akka-cluster-sharding/src/main/mima-filters/2.5.17.backwards.excludes
index 287ddb8b03..2b5cf031ae 100644
--- a/akka-cluster-sharding/src/main/mima-filters/2.5.17.backwards.excludes
+++ b/akka-cluster-sharding/src/main/mima-filters/2.5.17.backwards.excludes
@@ -1,2 +1,5 @@
 # Rename internal method #25840
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.sharding.Shard.getEntity")
+
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.sharding.ClusterSharding.get")
diff --git a/akka-cluster-sharding/src/main/mima-filters/2.5.24.backwards.excludes b/akka-cluster-sharding/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-cluster-sharding/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-cluster-tools/src/main/mima-filters/2.5.17.backwards.excludes b/akka-cluster-tools/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..d4e9a90351
--- /dev/null
+++ b/akka-cluster-tools/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,3 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.client.ClusterClientReceptionist.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.pubsub.DistributedPubSub.get")
diff --git a/akka-cluster-tools/src/main/mima-filters/2.5.24.backwards.excludes b/akka-cluster-tools/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-cluster-tools/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-cluster/src/main/mima-filters/2.5.17.backwards.excludes b/akka-cluster/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..6889e0291b
--- /dev/null
+++ b/akka-cluster/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.Cluster.get")
diff --git a/akka-cluster/src/main/mima-filters/2.5.24.backwards.excludes b/akka-cluster/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-cluster/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-coordination/src/main/mima-filters/2.5.24.backwards.excludes b/akka-coordination/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-coordination/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-discovery/src/main/mima-filters/2.5.19.backwards.excludes b/akka-discovery/src/main/mima-filters/2.5.19.backwards.excludes
index 0ec87cb2ae..8e50348098 100644
--- a/akka-discovery/src/main/mima-filters/2.5.19.backwards.excludes
+++ b/akka-discovery/src/main/mima-filters/2.5.19.backwards.excludes
@@ -33,3 +33,9 @@ ProblemFilters.exclude[MissingTypesProblem]("akka.discovery.ServiceDiscovery$Res
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.discovery.ServiceDiscovery#ResolvedTarget.unapply")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.discovery.Lookup.unapply")
 ProblemFilters.exclude[MissingTypesProblem]("akka.discovery.ServiceDiscovery$Resolved$")
+
+ProblemFilters.exclude[VirtualStaticMemberProblem]("akka.discovery.Lookup.productPrefix")
+ProblemFilters.exclude[VirtualStaticMemberProblem]("akka.discovery.Lookup.productArity")
+ProblemFilters.exclude[VirtualStaticMemberProblem]("akka.discovery.Lookup.productElement")
+ProblemFilters.exclude[VirtualStaticMemberProblem]("akka.discovery.Lookup.productIterator")
+ProblemFilters.exclude[VirtualStaticMemberProblem]("akka.discovery.Lookup.canEqual")
diff --git a/akka-discovery/src/main/mima-filters/2.5.24.backwards.excludes b/akka-discovery/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-discovery/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-distributed-data/src/main/mima-filters/2.5.17.backwards.excludes b/akka-distributed-data/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..4e41a0bdb2
--- /dev/null
+++ b/akka-distributed-data/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.ddata.DistributedData.get")
diff --git a/akka-distributed-data/src/main/mima-filters/2.5.21.backwards.excludes b/akka-distributed-data/src/main/mima-filters/2.5.21.backwards.excludes
index 7152ca4bca..39537cbdaf 100644
--- a/akka-distributed-data/src/main/mima-filters/2.5.21.backwards.excludes
+++ b/akka-distributed-data/src/main/mima-filters/2.5.21.backwards.excludes
@@ -17,3 +17,5 @@ ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.cluster.ddata.Replicat
 ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.cluster.ddata.Replicator.replica")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.ddata.Replicator.receiveWeaklyUpMemberUp")
 
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.cluster.ddata.ORSet.clear")
diff --git a/akka-distributed-data/src/main/mima-filters/2.5.24.backwards.excludes b/akka-distributed-data/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-distributed-data/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-multi-node-testkit/src/main/mima-filters/2.5.17.backwards.excludes b/akka-multi-node-testkit/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..00d611cc49
--- /dev/null
+++ b/akka-multi-node-testkit/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.testconductor.TestConductor.get")
diff --git a/akka-multi-node-testkit/src/main/mima-filters/2.5.24.backwards.excludes b/akka-multi-node-testkit/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-multi-node-testkit/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-persistence-query/src/main/mima-filters/2.5.17.backwards.excludes b/akka-persistence-query/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..0b3577a88f
--- /dev/null
+++ b/akka-persistence-query/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.persistence.query.PersistenceQuery.get")
diff --git a/akka-persistence-query/src/main/mima-filters/2.5.24.backwards.excludes b/akka-persistence-query/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-persistence-query/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-persistence/src/main/mima-filters/2.5.17.backwards.excludes b/akka-persistence/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..8ad438496b
--- /dev/null
+++ b/akka-persistence/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,4 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.persistence.Persistence.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.persistence.fsm.SnapshotAfter.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.persistence.journal.PersistencePluginProxyExtension.get")
diff --git a/akka-persistence/src/main/mima-filters/2.5.24.backwards.excludes b/akka-persistence/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-persistence/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-persistence/src/main/mima-filters/2.5.25.backwards.excludes b/akka-persistence/src/main/mima-filters/2.5.25.backwards.excludes
new file mode 100644
index 0000000000..30d4e28a86
--- /dev/null
+++ b/akka-persistence/src/main/mima-filters/2.5.25.backwards.excludes
@@ -0,0 +1,3 @@
+# #27411 changes not caught by previous mima versions
+## TimerMode parameter
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.persistence.fsm.PersistentFSM#Timer.unapply")
diff --git a/akka-remote/src/main/mima-filters/2.5.17.backwards.excludes b/akka-remote/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..63ba14edae
--- /dev/null
+++ b/akka-remote/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,3 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.*Extension.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.serialization.ActorRefResolveThreadLocalCache.get")
diff --git a/akka-remote/src/main/mima-filters/2.5.24.backwards.excludes b/akka-remote/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-remote/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-remote/src/main/mima-filters/2.5.25.backwards.excludes b/akka-remote/src/main/mima-filters/2.5.25.backwards.excludes
index a270a3c315..939d2177ee 100644
--- a/akka-remote/src/main/mima-filters/2.5.25.backwards.excludes
+++ b/akka-remote/src/main/mima-filters/2.5.25.backwards.excludes
@@ -5,3 +5,11 @@ ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.artery.*.runInbo
 ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.remote.artery.ArteryTransport.bindInboundStreams")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.artery.ArteryTransport.autoSelectPort")
 ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.remote.artery.tcp.TcpFraming.this")
+
+# #27411 changes not caught by previous mima versions
+## ActorRef became an OptionVal
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.remote.transport.AkkaPduCodec#Message.unapply")
+## StopSignal became OptionVal[StopSignal]
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.remote.artery.Association#OutboundStreamMatValues.unapply")
+## ActorRef became OptionVal[ActorRef]
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.remote.EndpointManager#Send.unapply")
diff --git a/akka-remote/src/main/mima-filters/2.5.x.backwards.excludes b/akka-remote/src/main/mima-filters/2.5.x.backwards.excludes
index d6d2808114..d5661eae86 100644
--- a/akka-remote/src/main/mima-filters/2.5.x.backwards.excludes
+++ b/akka-remote/src/main/mima-filters/2.5.x.backwards.excludes
@@ -36,6 +36,7 @@ ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.serialization.Th
 # Upgrade to protobuf 3
 ProblemFilters.exclude[Problem]("akka.remote.serialization.ArteryMessageSerializer*")
 ProblemFilters.exclude[Problem]("akka.remote.*Formats*")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.remote.artery.EventSink.alert")
 
 # Remove AFR #27581
 ProblemFilters.exclude[MissingClassProblem]("akka.remote.artery.FlightRecorderReader$*")
diff --git a/akka-stream/src/main/mima-filters/2.5.17.backwards.excludes b/akka-stream/src/main/mima-filters/2.5.17.backwards.excludes
index 63e051b57b..e6e0b4ad1f 100644
--- a/akka-stream/src/main/mima-filters/2.5.17.backwards.excludes
+++ b/akka-stream/src/main/mima-filters/2.5.17.backwards.excludes
@@ -1,3 +1,10 @@
 # #25742 zip/unzip 22 parameters support
 ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.stream.scaladsl.ZipWithApply.apply")
 ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.stream.scaladsl.UnzipWithApply.apply")
+
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("com.typesafe.sslconfig.akka.AkkaSSLConfig.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("com.typesafe.sslconfig.akka.AkkaSSLConfig.apply")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.javadsl.Tcp.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.scaladsl.Tcp.get")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.scaladsl.Tcp.apply")
diff --git a/akka-stream/src/main/mima-filters/2.5.24.backwards.excludes b/akka-stream/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-stream/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-stream/src/main/mima-filters/2.5.4.backwards.excludes b/akka-stream/src/main/mima-filters/2.5.4.backwards.excludes
index 69f0b92a3a..3d11834f4d 100644
--- a/akka-stream/src/main/mima-filters/2.5.4.backwards.excludes
+++ b/akka-stream/src/main/mima-filters/2.5.4.backwards.excludes
@@ -27,3 +27,7 @@ ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.stream.scaladsl.FlowO
 ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.stream.scaladsl.FlowOps.interleaveGraph$default$3")
 ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.stream.scaladsl.FlowOps.interleave")
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.impl.SubFlowImpl.interleaveGraph")
+
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectAbstractMethodProblem]("akka.stream.Shape.outlets")
+ProblemFilters.exclude[DirectAbstractMethodProblem]("akka.stream.Shape.inlets")
diff --git a/akka-stream/src/main/mima-filters/2.5.x.backwards.excludes b/akka-stream/src/main/mima-filters/2.5.x.backwards.excludes
index c5e5eedf87..488b668b7c 100644
--- a/akka-stream/src/main/mima-filters/2.5.x.backwards.excludes
+++ b/akka-stream/src/main/mima-filters/2.5.x.backwards.excludes
@@ -66,8 +66,10 @@ ProblemFilters.exclude[ReversedMissingMethodProblem]("akka.stream.scaladsl.FlowO
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.ActorAttributes#Dispatcher.resolve")
 
 # #24372 No Future/CompletionStage in StreamRefs
-# no filter because MiMa doesn't check the generic signature
-# https://github.com/lightbend/mima/issues/40
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.scaladsl.StreamRefs.sinkRef")
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.scaladsl.StreamRefs.sourceRef")
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.javadsl.StreamRefs.sinkRef")
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.javadsl.StreamRefs.sourceRef")
 
 # 26188 remove Timed
 ProblemFilters.exclude[MissingClassProblem]("akka.stream.extra.Timed$TimedFlowContext")
@@ -227,4 +229,10 @@ ProblemFilters.exclude[DirectMissingMethodProblem]("akka.stream.stage.GraphStage
 ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.stream.stage.GraphStageLogic#StageActor.this")
 
 # Internal class made final #27472
-ProblemFilters.exclude[FinalClassProblem]("akka.stream.scaladsl.CoupledTerminationBidi")
\ No newline at end of file
+ProblemFilters.exclude[FinalClassProblem]("akka.stream.scaladsl.CoupledTerminationBidi")
+
+# Rename type parameter for join and joinMat #26828
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.javadsl.Flow.join")
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.javadsl.Flow.joinMat")
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.scaladsl.Flow.join")
+ProblemFilters.exclude[IncompatibleSignatureProblem]("akka.stream.scaladsl.Flow.joinMat")
diff --git a/akka-testkit/src/main/mima-filters/2.5.17.backwards.excludes b/akka-testkit/src/main/mima-filters/2.5.17.backwards.excludes
new file mode 100644
index 0000000000..c292095d5d
--- /dev/null
+++ b/akka-testkit/src/main/mima-filters/2.5.17.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.testkit.TestKitExtension.get")
diff --git a/akka-testkit/src/main/mima-filters/2.5.24.backwards.excludes b/akka-testkit/src/main/mima-filters/2.5.24.backwards.excludes
new file mode 100644
index 0000000000..1a1aa306e7
--- /dev/null
+++ b/akka-testkit/src/main/mima-filters/2.5.24.backwards.excludes
@@ -0,0 +1,2 @@
+# #27411 changes not caught by previous mima versions
+ProblemFilters.exclude[IncompatibleSignatureProblem]("*")
diff --git a/akka-testkit/src/main/mima-filters/2.5.x.backwards.excludes b/akka-testkit/src/main/mima-filters/2.5.x.backwards.excludes
index e3c0cdb7e8..23e01fed9d 100644
--- a/akka-testkit/src/main/mima-filters/2.5.x.backwards.excludes
+++ b/akka-testkit/src/main/mima-filters/2.5.x.backwards.excludes
@@ -9,4 +9,5 @@ ProblemFilters.exclude[MissingClassProblem]("akka.testkit.TestMessageSerializer"
 # Some TestKit methods unaccessible from Java
 ProblemFilters.exclude[DirectMissingMethodProblem]("akka.testkit.javadsl.TestKit.expectMsgAnyOf")
 ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.testkit.javadsl.TestKit.expectMsgAllOf")
-ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.testkit.javadsl.TestKit.expectMsgAnyOf")
\ No newline at end of file
+ProblemFilters.exclude[IncompatibleMethTypeProblem]("akka.testkit.javadsl.TestKit.expectMsgAnyOf")
+ProblemFilters.exclude[DirectMissingMethodProblem]("akka.testkit.javadsl.TestKit.expectMsgAllOf")
diff --git a/project/MiMa.scala b/project/MiMa.scala
index af2e5c18af..423735798f 100644
--- a/project/MiMa.scala
+++ b/project/MiMa.scala
@@ -35,7 +35,11 @@ object MiMa extends AutoPlugin {
         else 0
     
       if (!projectName.contains("typed")) {
-        expandVersions(2, 5, firstPatchOf25 to latestPatchOf25)
+        // 2.5.18 is the only release built with Scala 2.12.7, which due to
+        // https://github.com/scala/bug/issues/11207 produced many more
+        // static methods than expected. These are hard to filter out, so
+        // we exclude it here and rely on the checks for 2.5.17 and 2.5.19.
+        expandVersions(2, 5, ((firstPatchOf25 to latestPatchOf25).toSet - 18).toList)
       } else {
         Nil
       } ++ expandVersions(2, 6, 0 to latestPatchOf26)
diff --git a/project/plugins.sbt b/project/plugins.sbt
index ee372c9a9b..2bceebadc2 100644
--- a/project/plugins.sbt
+++ b/project/plugins.sbt
@@ -7,7 +7,7 @@ addSbtPlugin("com.lightbend.sbt" % "sbt-java-formatter" % "0.4.4")
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.0.4")
 addSbtPlugin("ch.epfl.scala" % "sbt-scalafix" % "0.9.6")
 addSbtPlugin("com.typesafe.sbt" % "sbt-osgi" % "0.9.5")
-addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.3.0")
+addSbtPlugin("com.typesafe" % "sbt-mima-plugin" % "0.6.0")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "1.1.2")
 addSbtPlugin("com.eed3si9n" % "sbt-unidoc" % "0.4.2")
 addSbtPlugin("com.thoughtworks.sbt-api-mappings" % "sbt-api-mappings" % "3.0.0")