Sync feature with master

Author: caseyclements

.evergreen/generated_configs/variants.yml

@@ -133,6 +133,15 @@ buildvariants:
       - rhel87-small
     expansions:
       COMPRESSOR: zstd
+  - name: compression-zstd-ubuntu-22
+    tasks:
+      - name: .test-standard !.server-4.2 !.server-4.4 !.server-5.0 .python-3.14
+      - name: .test-standard !.server-4.2 !.server-4.4 !.server-5.0 .python-3.14t
+    display_name: Compression zstd Ubuntu-22
+    run_on:
+      - ubuntu2204-small
+    expansions:
+      COMPRESSOR: ztsd
 
   # Coverage report tests
   - name: coverage-report

.evergreen/remove-unimplemented-tests.sh

@@ -41,7 +41,7 @@ rm $PYMONGO/test/index_management/index-rawdata.json
 rm $PYMONGO/test/collection_management/modifyCollection-*.json
 
 # PYTHON-5248 - Remove support for MongoDB 4.0
-find /$PYMONGO /test -type f -name 'pre-42-*.json' -delete
+find /$PYMONGO/test -type f -name 'pre-42-*.json' -delete
 
 # PYTHON-3359 - Remove Database and Collection level timeout override
 rm $PYMONGO/test/csot/override-collection-timeoutMS.json

.evergreen/scripts/generate_config.py

@@ -194,6 +194,22 @@ def create_compression_variants():
                 expansions=expansions,
             )
         )
+    # Add explicit tests with compression.zstd support on linux.
+    host = HOSTS["ubuntu22"]
+    expansions = dict(COMPRESSOR="ztsd")
+    tasks = [
+        ".test-standard !.server-4.2 !.server-4.4 !.server-5.0 .python-3.14",
+        ".test-standard !.server-4.2 !.server-4.4 !.server-5.0 .python-3.14t",
+    ]
+    display_name = get_variant_name(f"Compression {compressor}", host)
+    variants.append(
+        create_variant(
+            tasks,
+            display_name,
+            host=host,
+            expansions=expansions,
+        )
+    )
     return variants
 
 

.evergreen/spec-patch/PYTHON-5445.patch

@@ -0,0 +1,26 @@
+diff --git a/test/auth/legacy/connection-string.json b/test/auth/legacy/connection-string.json
+index 3a099c813..8982b61d5 100644
+--- a/test/auth/legacy/connection-string.json
++++ b/test/auth/legacy/connection-string.json
+@@ -440,6 +440,21 @@
+         }
+       }
+     },
++    {
++      "description": "should throw an exception if username provided (MONGODB-AWS)",
++      "uri": "mongodb://user@localhost.com/?authMechanism=MONGODB-AWS",
++      "valid": false
++    },
++    {
++      "description": "should throw an exception if username and password provided (MONGODB-AWS)",
++      "uri": "mongodb://user:pass@localhost.com/?authMechanism=MONGODB-AWS",
++      "valid": false
++    },
++    {
++      "description": "should throw an exception if AWS_SESSION_TOKEN provided (MONGODB-AWS)",
++      "uri": "mongodb://localhost/?authMechanism=MONGODB-AWS&authMechanismProperties=AWS_SESSION_TOKEN:token",
++      "valid": false
++    },
+     {
+       "description": "should recognise the mechanism with test environment (MONGODB-OIDC)",
+       "uri": "mongodb://localhost/?authMechanism=MONGODB-OIDC&authMechanismProperties=ENVIRONMENT:test",