[Spec Resync] 12-22-2025 (mongodb#2663)

Co-authored-by: Cloud User <ec2-user@ip-10-128-23-103.ec2.internal>
Co-authored-by: Steven Silvester <steve.silvester@mongodb.com>

Author: 3 people

.evergreen/remove-unimplemented-tests.sh

@@ -7,6 +7,7 @@ rm $PYMONGO/test/discovery_and_monitoring/unified/pool-clear-application-error.j
 rm $PYMONGO/test/discovery_and_monitoring/unified/pool-clear-checkout-error.json  # PYTHON-4918
 rm $PYMONGO/test/discovery_and_monitoring/unified/pool-clear-min-pool-size-error.json  # PYTHON-4918
 rm $PYMONGO/test/client-side-encryption/spec/unified/client-bulkWrite-qe.json  # PYTHON-4929
+rm $PYMONGO/test/sessions/snapshot-sessions.json # PYTHON-5559
 
 # Python doesn't implement DRIVERS-3064
 rm $PYMONGO/test/collection_management/listCollections-rawdata.json
@@ -50,4 +51,7 @@ rm $PYMONGO/test/csot/override-database-timeoutMS.json
 # PYTHON-2943 - Socks5 Proxy Support
 rm $PYMONGO/test/uri_options/proxy-options.json
 
+# PYTHON-5517 - Avoid clearing the connection pool when the server connection rate limiter triggers
+rm $PYMONGO/test/discovery_and_monitoring/unified/backpressure-*.json
+
 echo "Done removing unimplemented tests"