ci: run integration tests against Weaviate 1.39.0-rc.0

Bumps the integration-test matrix from 1.36.0 to 1.39.0-rc.0. There is no plain
`1.39.0-rc.0` tag on Docker Hub yet, only commit-suffixed builds, so the newest
one is pinned following the existing `WEAVIATE_137` convention.

Two existing tests needed adapting to intentional server changes in 1.39:

- `test_config_export_and_recreate_from_dict`: property names ending in
  `_searchable` are now rejected on creation, the suffix is reserved for
  Weaviate's internal indices. The property is renamed, its purpose (a property
  with `index_searchable=False`) is unchanged. Only top-level properties are
  validated, so the nested `nested_searchable` needs no change.
- `test_collection_config_full`: `asyncEnabled` is no longer stored per class
  but derived server-side as `factor > 1 && !globallyDisabled`. This collection
  uses a factor of 1, so it now reports `False`. The pre-1.39 assertions are
  kept behind a version check.

Also fixes a missing comma in the `test-package` matrix that collapsed
`$WEAVIATE_136 $WEAVIATE_137` into a single entry, so only 1.36 was ever passed
to `start_weaviate.sh` and 1.37 was never tested.

Verified by running the full integration suite against 1.36.0 and against
1.39.0-rc.0: both produce identical failure sets, so the bump introduces no
regressions.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: jfrancoa

.github/workflows/main.yaml

@@ -29,6 +29,7 @@ env:
   WEAVIATE_135: 1.35.0
   WEAVIATE_136: 1.36.0
   WEAVIATE_137: 1.37.0-dev-29d5c87.amd64
+  WEAVIATE_139: 1.39.0-rc.0-b41225e.amd64
 
 
 jobs:
@@ -157,11 +158,11 @@ jobs:
       fail-fast: false
       matrix:
         versions: [
-          { py: "3.10", weaviate: $WEAVIATE_136, grpc: "1.59.0"},
-          { py: "3.11", weaviate: $WEAVIATE_136, grpc: "1.66.0"},
-          { py: "3.12", weaviate: $WEAVIATE_136, grpc: "1.70.0"},
-          { py: "3.13", weaviate: $WEAVIATE_136, grpc: "1.72.1"},
-          { py: "3.14", weaviate: $WEAVIATE_136, grpc: "1.76.0"}
+          { py: "3.10", weaviate: $WEAVIATE_139, grpc: "1.59.0"},
+          { py: "3.11", weaviate: $WEAVIATE_139, grpc: "1.66.0"},
+          { py: "3.12", weaviate: $WEAVIATE_139, grpc: "1.70.0"},
+          { py: "3.13", weaviate: $WEAVIATE_139, grpc: "1.72.1"},
+          { py: "3.14", weaviate: $WEAVIATE_139, grpc: "1.76.0"}
         ]
         optional_dependencies: [false]
     steps:
@@ -310,8 +311,9 @@ jobs:
           $WEAVIATE_133,
           $WEAVIATE_134,
           $WEAVIATE_135,
-          $WEAVIATE_136
-          $WEAVIATE_137
+          $WEAVIATE_136,
+          $WEAVIATE_137,
+          $WEAVIATE_139
         ]
     steps:
       - name: Checkout

integration/test_collection_config.py

@@ -349,7 +349,11 @@ def test_collection_config_full(collection_factory: CollectionFactory) -> None:
         assert config.multi_tenancy_config.auto_tenant_creation is False
 
     assert config.replication_config.factor == 1
-    if collection._connection._weaviate_version.is_at_least(1, 26, 0):
+    if collection._connection._weaviate_version.is_at_least(1, 39, 0):
+        # from 1.39 the server derives asyncEnabled from the replication factor instead of storing
+        # what was requested, and this collection has a factor of 1
+        assert config.replication_config.async_enabled is False
+    elif collection._connection._weaviate_version.is_at_least(1, 26, 0):
         assert config.replication_config.async_enabled is True
     else:
         assert config.replication_config.async_enabled is False
@@ -1021,8 +1025,10 @@ def test_config_export_and_recreate_from_dict(collection_factory: CollectionFact
             Property(name="booleans", data_type=DataType.BOOL_ARRAY),
             Property(name="geo", data_type=DataType.GEO_COORDINATES),
             Property(name="phone", data_type=DataType.PHONE_NUMBER),
+            # the name must not end in `_searchable`, from 1.39 that suffix is reserved for
+            # Weaviate's internal indices and rejected on creation
             Property(
-                name="field_index_searchable", data_type=DataType.TEXT, index_searchable=False
+                name="field_index_searchable_false", data_type=DataType.TEXT, index_searchable=False
             ),
             Property(
                 name="field_index_range_filters_false",