Spanner now supports the following GoogleSQL JSON mutator functions
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## Feature
Spanner now supports the following GoogleSQL JSON mutator functions:
* `JSON_ARRAY_APPEND()`
* `JSON_ARRAY_INSERT()`
* `JSON_REMOVE()`
* `JSON_SET()`
* `JSON_STRIP_NULLS()`
Spanner now supports the following PostgreSQL JSONB mutator functions:
* `jsonb_insert()`
* `jsonb_set()`
* `jsonb_set_lax()`
* `jsonb_strip_nulls()`
Spanner also supports the following PostgreSQL JSONB operators:
* concat: `jsonb || jsonb -> jsonb`
* delete: `jsonb - text -> jsonb`
For more information, see[JSON functions in GoogleSQL](https://cloud.google.com/spanner/docs/reference/standard-sql/functions-all)and[Supported PostgreSQL functions](https://cloud.google.com/spanner/docs/reference/postgresql/functions-and-operators).
## Feature
The GoogleSQL [JSON\_KEYS](https://cloud.google.com/spanner/docs/reference/standard-sql/json%5Ffunctions#json%5Fkeys) and PostgreSQL [json\_object\_keys](https://cloud.google.com/spanner/docs/reference/postgresql/functions-and-operators#jsonb%5Ffunctions) functions, which extract unique JSON keys from a JSON expression, are generally available.
## Feature
JSON search indexes are generally available in Spanner. This extension of Spanner's full-text index capabilities accelerates many JSON document queries, even without prior knowledge of the documents' structure. You can create search indexes over any JSON document stored in a JSON column. The [JSON\_CONTAINS](https://cloud.google.com/spanner/docs/reference/standard-sql/json%5Ffunctions#json%5Fcontains) function in GoogleSQL and the [@> and <@](https://cloud.google.com/spanner/docs/reference/postgresql/functions-and-operators#jsonb%5Foperators) operators in PostgreSQL can use search indexes to determine if one document structure is contained in another. Search indexing supports JSON types in GoogleSQL-dialect databases and JSONB in PostgreSQL-dialect databases. For more information, see [JSON search indexes](https://cloud.google.com/spanner/docs/full-text-search/json-indexes).
## Library
A monthly digest of client library updates from across the [Cloud SDK](https://cloud.google.com/sdk).
### Go
### Changes for [spanner/admin/database/apiv1](https://github.com/googleapis/google-cloud-go/tree/main/spanner/admin/database/apiv1)
#### [1.77.0](https://github.com/googleapis/google-cloud-go/compare/spanner/v1.76.1...spanner/v1.77.0) (2025-03-03)
##### Features
* **spanner:** A new enum `IsolationLevel` is added ([#11624](https://github.com/googleapis/google-cloud-go/issues/11624)) ([2c4fb44](https://github.com/googleapis/google-cloud-go/commit/2c4fb448a2207a6d9988ec3a7646ea6cbb6f65f9))
* **spanner:** A new field `isolation_level` is added to message `.google.spanner.v1.TransactionOptions` ([2c4fb44](https://github.com/googleapis/google-cloud-go/commit/2c4fb448a2207a6d9988ec3a7646ea6cbb6f65f9))
* **spanner:** Add a last field in the PartialResultSet ([#11645](https://github.com/googleapis/google-cloud-go/issues/11645)) ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** Add option for LastStatement in transaction ([#11638](https://github.com/googleapis/google-cloud-go/issues/11638)) ([d662a45](https://github.com/googleapis/google-cloud-go/commit/d662a4537c3883d13a612e335477ca875b5cf479))
##### Bug Fixes
* **spanner:** Avoid desructive context augmentation that dropped all headers ([#11659](https://github.com/googleapis/google-cloud-go/issues/11659)) ([594732d](https://github.com/googleapis/google-cloud-go/commit/594732dac26341ec00fe20cd40a6cfab9bde6317))
##### Documentation
* **spanner:** A comment for enum value `OPTIMISTIC` in enum `ReadLockMode` is changed ([2c4fb44](https://github.com/googleapis/google-cloud-go/commit/2c4fb448a2207a6d9988ec3a7646ea6cbb6f65f9))
* **spanner:** A comment for enum value `PESSIMISTIC` in enum `ReadLockMode` is changed ([2c4fb44](https://github.com/googleapis/google-cloud-go/commit/2c4fb448a2207a6d9988ec3a7646ea6cbb6f65f9))
* **spanner:** A comment for enum value `READ_LOCK_MODE_UNSPECIFIED` in enum `ReadLockMode` is changed ([2c4fb44](https://github.com/googleapis/google-cloud-go/commit/2c4fb448a2207a6d9988ec3a7646ea6cbb6f65f9))
* **spanner:** A comment for field `chunked_value` in message `.google.spanner.v1.PartialResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `precommit_token` in message `.google.spanner.v1.PartialResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `precommit_token` in message `.google.spanner.v1.ResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `query_plan` in message `.google.spanner.v1.ResultSetStats` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `row_count_lower_bound` in message `.google.spanner.v1.ResultSetStats` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `row_type` in message `.google.spanner.v1.ResultSetMetadata` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `rows` in message `.google.spanner.v1.ResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `stats` in message `.google.spanner.v1.PartialResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `stats` in message `.google.spanner.v1.ResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for field `values` in message `.google.spanner.v1.PartialResultSet` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for message `ResultSetMetadata` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
* **spanner:** A comment for message `ResultSetStats` is changed ([794ecf7](https://github.com/googleapis/google-cloud-go/commit/794ecf77993a83fcad01912fb066366ba16adc11))
#### [1.78.0](https://github.com/googleapis/google-cloud-go/compare/spanner/v1.77.0...spanner/v1.78.0) (2025-03-24)
##### Features
* **spanner/spansql:** Add support for tokenlist and create search index ([#11522](https://github.com/googleapis/google-cloud-go/issues/11522)) ([cd894f8](https://github.com/googleapis/google-cloud-go/commit/cd894f8aea935c43a6c5625c2fd66b132a9b2f8b))
* **spanner:** Support multiplexed sessions for ReadWriteStmtBasedTransaction ([#11852](https://github.com/googleapis/google-cloud-go/issues/11852)) ([528d9dd](https://github.com/googleapis/google-cloud-go/commit/528d9ddc548c5f05237cf5a0cc4b762ca5f1dd31))
##### Bug Fixes
* **spanner/test/opentelemetry/test:** Update golang.org/x/net to 0.37.0 ([1144978](https://github.com/googleapis/google-cloud-go/commit/11449782c7fb4896bf8b8b9cde8e7441c84fb2fd))
* **spanner:** Revert the ALTS bound token enablement ([#11799](https://github.com/googleapis/google-cloud-go/issues/11799)) ([68cfb38](https://github.com/googleapis/google-cloud-go/commit/68cfb385ef30c636ab491e6d010cb69e8e1bebf4))
* **spanner:** Update golang.org/x/net to 0.37.0 ([1144978](https://github.com/googleapis/google-cloud-go/commit/11449782c7fb4896bf8b8b9cde8e7441c84fb2fd))
### Java
### Changes for [google-cloud-spanner](https://github.com/googleapis/java-spanner)
#### [6.88.0](https://github.com/googleapis/java-spanner/compare/v6.87.0...v6.88.0) (2025-02-27)
##### Features
* Add a last field in the PartialResultSet ([7c714be](https://github.com/googleapis/java-spanner/commit/7c714be10eb345f2d8f566d752f6de615061c4da))
* Automatically set default sequence kind in JDBC and PGAdapter ([#3658](https://github.com/googleapis/java-spanner/issues/3658)) ([e8abf33](https://github.com/googleapis/java-spanner/commit/e8abf338b85e95f185ab2875a804134523f84de3))
* Default authentication support for external hosts ([#3656](https://github.com/googleapis/java-spanner/issues/3656)) ([ace11d5](https://github.com/googleapis/java-spanner/commit/ace11d5d928fb567b16560263ae95aa9cd916e22))
* **spanner:** A new enum `IsolationLevel` is added ([3fd33ba](https://github.com/googleapis/java-spanner/commit/3fd33ba9c5fab43ed475ed3cff9d60c008843981))
* **spanner:** Add instance partitions field in backup proto ([3fd33ba](https://github.com/googleapis/java-spanner/commit/3fd33ba9c5fab43ed475ed3cff9d60c008843981))
##### Bug Fixes
* **deps:** Update the Java code generator (gapic-generator-java) to 2.54.0 ([57497ad](https://github.com/googleapis/java-spanner/commit/57497ad00c62f152f493645f382530cf0eedf19e))
##### Dependencies
* Update dependency com.google.cloud:sdk-platform-java-config to v3.44.0 ([#3665](https://github.com/googleapis/java-spanner/issues/3665)) ([3543548](https://github.com/googleapis/java-spanner/commit/35435488f87ebd59179698e8f74578b41eb219da))
#### [6.89.0](https://github.com/googleapis/java-spanner/compare/v6.88.0...v6.89.0) (2025-03-20)
##### Features
* Enable ALTS hard bound token in DirectPath ([#3645](https://github.com/googleapis/java-spanner/issues/3645)) ([42cc961](https://github.com/googleapis/java-spanner/commit/42cc9616fa74c765d5716fd948dc0823df0a07a6))
* Next release from main branch is 6.89.0 ([#3669](https://github.com/googleapis/java-spanner/issues/3669)) ([7a8a29b](https://github.com/googleapis/java-spanner/commit/7a8a29be40258294cafd13b1df7df5ea349a675d))
* Support isolation level REPEATABLE\_READ for R/W transactions ([#3670](https://github.com/googleapis/java-spanner/issues/3670)) ([e62f5ab](https://github.com/googleapis/java-spanner/commit/e62f5ab46da8696a8ff0d213f924588612bb4025))
##### Bug Fixes
* **deps:** Update the Java code generator (gapic-generator-java) to 2.55.1 ([b959f4c](https://github.com/googleapis/java-spanner/commit/b959f4c8ebb3551796a894b659aa42ba16fb1c39))
* Revert the ALTS bound token enablement ([#3679](https://github.com/googleapis/java-spanner/issues/3679)) ([183c1f0](https://github.com/googleapis/java-spanner/commit/183c1f0e228a927a575596a38a01d63bb8eb6943))
##### Performance Improvements
* Get database dialect using multiplexed session ([#3684](https://github.com/googleapis/java-spanner/issues/3684)) ([f641a40](https://github.com/googleapis/java-spanner/commit/f641a40ed515a6559718c2fe2757c322f037d83b))
* Skip gRPC trailers for StreamingRead & ExecuteStreamingSql ([#3661](https://github.com/googleapis/java-spanner/issues/3661)) ([bd4b1f5](https://github.com/googleapis/java-spanner/commit/bd4b1f5b9612f6a4dfd748d735c887f8e46ae106))
##### Dependencies
* Update dependency com.google.cloud:sdk-platform-java-config to v3.45.1 ([#3689](https://github.com/googleapis/java-spanner/issues/3689)) ([67188df](https://github.com/googleapis/java-spanner/commit/67188df2be23eef88de8f4febc3ac7208ebdd937))
### Node.js
### Changes for [@google-cloud/spanner](https://github.com/googleapis/nodejs-spanner)
#### [7.19.0](https://github.com/googleapis/nodejs-spanner/compare/v7.18.1...v7.19.0) (2025-02-26)
##### Features
* Add AddSplitPoints API ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* Paging changes for bigquery ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* **spanner:** A new enum `IsolationLevel` is added ([#2225](https://github.com/googleapis/nodejs-spanner/issues/2225)) ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* **spanner:** A new field `isolation_level` is added to message `.google.spanner.v1.TransactionOptions` ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* **spanner:** Add instance partitions field in backup proto ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* **spanner:** Add support for Multiplexed Session for Read Only Tran… ([#2214](https://github.com/googleapis/nodejs-spanner/issues/2214)) ([3a7a51b](https://github.com/googleapis/nodejs-spanner/commit/3a7a51bee00730c2daf1b9791b45f75531c14a2c))
* **x-goog-spanner-request-id:** Add bases ([#2211](https://github.com/googleapis/nodejs-spanner/issues/2211)) ([0008038](https://github.com/googleapis/nodejs-spanner/commit/000803812e670ce0f4bac4a6460351f2b08ec660))
##### Bug Fixes
* Add x-goog-request params to headers for LRO-polling methods ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* Error from fill method should not be emitted ([#2233](https://github.com/googleapis/nodejs-spanner/issues/2233)) ([2cc44cf](https://github.com/googleapis/nodejs-spanner/commit/2cc44cf238bd18f5a456c76ddb8280c2252c2e87)), closes [#2103](https://github.com/googleapis/nodejs-spanner/issues/2103)
* Finalize fixing typings for headers in generator ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* Fix typings for headers in generator ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* Remove extra protos in ESM & capture ESM in headers ([e4d389a](https://github.com/googleapis/nodejs-spanner/commit/e4d389a23ff4b73b2d0774ad31a84c9a6c19e306))
* Rollback with no id ([#2231](https://github.com/googleapis/nodejs-spanner/issues/2231)) ([a6919b1](https://github.com/googleapis/nodejs-spanner/commit/a6919b15bd01ed93c62d32533d78181cbd333f5e)), closes [#2103](https://github.com/googleapis/nodejs-spanner/issues/2103)
#### [7.19.1](https://github.com/googleapis/nodejs-spanner/compare/v7.19.0...v7.19.1) (2025-03-13)
##### Bug Fixes
* CreateQueryPartition with query params ([91f5afd](https://github.com/googleapis/nodejs-spanner/commit/91f5afda53bd9c46fcd1a1fe33f579b6aed5223a))
### Python
### Changes for [google-cloud-spanner](https://github.com/googleapis/python-spanner)
#### [3.53.0](https://github.com/googleapis/python-spanner/compare/v3.52.0...v3.53.0) (2025-03-12)
##### Features
* Add AddSplitPoints API ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Add Attempt, Operation and GFE Metrics ([#1302](https://github.com/googleapis/python-spanner/issues/1302)) ([fb21d9a](https://github.com/googleapis/python-spanner/commit/fb21d9acf2545cf7b8e9e21b65eabf21a7bf895f))
* Add REST Interceptors which support reading metadata ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Add support for opt-in debug logging ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Add support for reading selective GAPIC generation methods from service YAML ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Add the last statement option to ExecuteSqlRequest and ExecuteBatchDmlRequest ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Add UUID in Spanner TypeCode enum ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* End to end tracing ([#1315](https://github.com/googleapis/python-spanner/issues/1315)) ([aa5d0e6](https://github.com/googleapis/python-spanner/commit/aa5d0e6c1d3e5b0e4b0578e80c21e7c523c30fb5))
* Exposing FreeInstanceAvailability in InstanceConfig ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Exposing FreeInstanceMetadata in Instance configuration (to define the metadata related to FREE instance type) ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Exposing InstanceType in Instance configuration (to define PROVISIONED or FREE spanner instance) ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Exposing QuorumType in InstanceConfig ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Exposing storage\_limit\_per\_processing\_unit in InstanceConfig ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Snapshot isolation ([#1318](https://github.com/googleapis/python-spanner/issues/1318)) ([992fcae](https://github.com/googleapis/python-spanner/commit/992fcae2d4fd2b47380d159a3416b8d6d6e1c937))
* **spanner:** A new enum `IsolationLevel` is added ([#1224](https://github.com/googleapis/python-spanner/issues/1224)) ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
##### Bug Fixes
* Allow Protobuf 6.x ([#1320](https://github.com/googleapis/python-spanner/issues/1320)) ([1faab91](https://github.com/googleapis/python-spanner/commit/1faab91790ae3e2179fbab11b69bb02254ab048a))
* Cleanup after metric integration test ([#1322](https://github.com/googleapis/python-spanner/issues/1322)) ([d7cf8b9](https://github.com/googleapis/python-spanner/commit/d7cf8b968dfc2b98d3b1d7ae8a025da55bec0767))
* **deps:** Require grpc-google-iam-v1>=0.14.0 ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Fix typing issue with gRPC metadata when key ends in -bin ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
##### Performance Improvements
* Add option for last\_statement ([#1313](https://github.com/googleapis/python-spanner/issues/1313)) ([19ab6ef](https://github.com/googleapis/python-spanner/commit/19ab6ef0d58262ebb19183e700db6cf124f9b3c5))
##### Documentation
* A comment for enum `DefaultBackupScheduleType` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for enum value `AUTOMATIC` in enum `DefaultBackupScheduleType` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for enum value `GOOGLE_MANAGED` in enum `Type` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for enum value `NONE` in enum `DefaultBackupScheduleType` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for enum value `USER_MANAGED` in enum `Type` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `base_config` in message `.google.spanner.admin.instance.v1.InstanceConfig` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `default_backup_schedule_type` in message `.google.spanner.admin.instance.v1.Instance` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `filter` in message `.google.spanner.admin.instance.v1.ListInstanceConfigOperationsRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `filter` in message `.google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `instance_config` in message `.google.spanner.admin.instance.v1.CreateInstanceConfigRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `instance_partition_deadline` in message `.google.spanner.admin.instance.v1.ListInstancePartitionOperationsRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `location` in message `.google.spanner.admin.instance.v1.ReplicaInfo` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `node_count` in message `.google.spanner.admin.instance.v1.Instance` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `node_count` in message `.google.spanner.admin.instance.v1.InstancePartition` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `operations` in message `.google.spanner.admin.instance.v1.ListInstanceConfigOperationsResponse` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `operations` in message `.google.spanner.admin.instance.v1.ListInstancePartitionOperationsResponse` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `optional_replicas` in message `.google.spanner.admin.instance.v1.InstanceConfig` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `parent` in message `.google.spanner.admin.instance.v1.ListInstancePartitionsRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `processing_units` in message `.google.spanner.admin.instance.v1.Instance` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `processing_units` in message `.google.spanner.admin.instance.v1.InstancePartition` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `referencing_backups` in message `.google.spanner.admin.instance.v1.InstancePartition` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `replicas` in message `.google.spanner.admin.instance.v1.InstanceConfig` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `storage_utilization_percent` in message `.google.spanner.admin.instance.v1.AutoscalingConfig` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for field `unreachable` in message `.google.spanner.admin.instance.v1.ListInstancePartitionsResponse` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for message `CreateInstanceConfigRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for message `DeleteInstanceConfigRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for message `UpdateInstanceConfigRequest` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `CreateInstance` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `CreateInstanceConfig` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `CreateInstancePartition` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `ListInstanceConfigOperations` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `ListInstanceConfigs` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `ListInstancePartitionOperations` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `MoveInstance` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `UpdateInstance` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `UpdateInstanceConfig` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* A comment for method `UpdateInstancePartition` in service `InstanceAdmin` is changed ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))
* Fix typo timzeone -> timezone ([7a5afba](https://github.com/googleapis/python-spanner/commit/7a5afba28b20ac94f3eec799f4b572c95af60b94))