diff --git a/bindings/python/CHANGELOG.rst b/bindings/python/CHANGELOG.rst
index b1349361f..d9ba5fd39 100644
--- a/bindings/python/CHANGELOG.rst
+++ b/bindings/python/CHANGELOG.rst
@@ -6,6 +6,7 @@ Changes in Version 1.15.0
 
 - Add support for Python 3.14.
 - Drop support for Python 3.8.
+- Bundle libmongocrypt 1.15.0 in release wheels.
 
 Changes in Version 1.14.1
 -------------------------
diff --git a/bindings/python/pymongocrypt/binding.py b/bindings/python/pymongocrypt/binding.py
index 3d60dc8f7..ba451e21f 100644
--- a/bindings/python/pymongocrypt/binding.py
+++ b/bindings/python/pymongocrypt/binding.py
@@ -687,6 +687,7 @@ def _parse_version(version):
 /// String constant for setopt_algorithm "Indexed" explicit encryption
 /// String constant for setopt_algorithm "Unindexed" explicit encryption
 // DEPRECATED: support "RangePreview" has been removed in favor of "range".
+/// NOTE: "textPreview" is experimental only and may be removed in a future non-major release.
 
 /**
  * Identify the AWS KMS master key to use for creating a data key.
@@ -1466,6 +1467,33 @@ def _parse_version(version):
  */
 bool mongocrypt_ctx_setopt_algorithm_range(mongocrypt_ctx_t *ctx, mongocrypt_binary_t *opts);
 
+/**
+ * Set options for explicit encryption with the "textPreview" algorithm.
+ *
+ * NOTE: "textPreview" is experimental only and may be removed in a future non-major release.
+ * @p opts is a BSON document of the form:
+ * {
+ *   "caseSensitive": bool,
+ * . "diacriticSensitive": bool,
+ * . "prefix": Optional{
+ * .   "strMaxQueryLength": Int32,
+ * .   "strMinQueryLength": Int32,
+ * . },
+ * . "suffix": Optional{
+ * .   "strMaxQueryLength": Int32,
+ * .   "strMinQueryLength": Int32,
+ * . },
+ * . "substring": Optional{
+ * .   "strMaxLength": Int32,
+ * .   "strMaxQueryLength": Int32,
+ * .   "strMinQueryLength": Int32,
+ * . },
+ * }
+ *
+ * "prefix" and "suffix" can both be set.
+ */
+bool mongocrypt_ctx_setopt_algorithm_text(mongocrypt_ctx_t *ctx, mongocrypt_binary_t *opts);
+
 /**
  * Set the expiration time for the data encryption key cache. Defaults to 60 seconds if not set.
  *
diff --git a/bindings/python/sbom.json b/bindings/python/sbom.json
index 5f8fea81b..2be4331f5 100644
--- a/bindings/python/sbom.json
+++ b/bindings/python/sbom.json
@@ -1,31 +1,31 @@
 {
   "components": [
     {
-      "bom-ref": "pkg:github/mongodb/libmongocrypt@1.14.1",
+      "bom-ref": "pkg:github/mongodb/libmongocrypt@1.15.0",
       "externalReferences": [
         {
           "type": "distribution",
-          "url": "https://github.com/mongodb/libmongocrypt/archive/refs/tags/1.14.1.tar.gz"
+          "url": "https://github.com/mongodb/libmongocrypt/archive/refs/tags/1.15.0.tar.gz"
         },
         {
           "type": "website",
-          "url": "https://github.com/mongodb/libmongocrypt/tree/1.14.1"
+          "url": "https://github.com/mongodb/libmongocrypt/tree/1.15.0"
         }
       ],
       "group": "mongodb",
       "name": "libmongocrypt",
-      "purl": "pkg:github/mongodb/libmongocrypt@1.14.1",
+      "purl": "pkg:github/mongodb/libmongocrypt@1.15.0",
       "type": "library",
-      "version": "1.14.1"
+      "version": "1.15.0"
     }
   ],
   "dependencies": [
     {
-      "ref": "pkg:github/mongodb/libmongocrypt@1.14.1"
+      "ref": "pkg:github/mongodb/libmongocrypt@1.15.0"
     }
   ],
   "metadata": {
-    "timestamp": "2025-06-03T14:42:56.012265+00:00",
+    "timestamp": "2025-08-05T11:57:35.707043+00:00",
     "tools": [
       {
         "externalReferences": [
@@ -68,7 +68,7 @@
       }
     ]
   },
-  "serialNumber": "urn:uuid:aac36293-a6b5-4db7-b6df-eb8126c70662",
+  "serialNumber": "urn:uuid:1ab48045-0f56-451d-b67e-1ec3be358fa8",
   "version": 1,
   "$schema": "http://cyclonedx.org/schema/bom-1.5.schema.json",
   "bomFormat": "CycloneDX",
diff --git a/bindings/python/scripts/libmongocrypt-version.txt b/bindings/python/scripts/libmongocrypt-version.txt
index 63e799cf4..141f2e805 100644
--- a/bindings/python/scripts/libmongocrypt-version.txt
+++ b/bindings/python/scripts/libmongocrypt-version.txt
@@ -1 +1 @@
-1.14.1
+1.15.0