Cloud SDK 340.0.0 is now available

[Cameron Glouchevitch]

Hi all,

Cloud SDK 340.0.0 is now available for download at:
https://developers.google.com/cloud/sdk/

Release notes can be found here:
https://cloud.google.com/sdk/docs/release-notes

 ## 340.0.0 (2021-05-11)

### Cloud Asset Inventory

*   Updated `gcloud asset search-all-resources` to support date-time string in
    queries on timestamp fields (createTime and updateTime).

### Cloud Bigtable

*   Promoted the IAM Conditions flags  `--condition` and  `--condition-from` to GA.

### Cloud Billing

* Added optional `--calendar-period`,  `--start-date`, and `--end-date` flags to
 `gcloud billing budgets [create | update]` to support a wider array of options
 for the budget's timeframe, which was previously always one month.

### Cloud Memorystore

*   Promoted `gcloud beta redis reschedule-maintenance` to beta.
*   Added `--maintenance-window-day` flag and `--maintenance-window-hour` flag to
    `gcloud beta redis instances create` to allow specifying a maintenance policy
    when creating a new instance.
*   Added `--maintenance-window-day` flag, `--maintenance-window-hour` flag and
    `--maintenance-window-any` flag to `gcloud beta redis instances update` to
    allow updating a maintenance policy when updating an instance.

### Cloud Run

* Modified `gcloud beta run deploy --source` to suggest a default service name
  based on the source path when one isn't provided.

### Compute Engine

* Promoted `gcloud compute service-attachments` to beta.
* Added `--target-service-attachment` flag to `gcloud beta compute forwarding-rules create`.
* Added `--purpose=private-service-connect` to `gcloud beta compute networks subnets create`.

### Config Connector

* Updated Google Cloud Config Connector to version 1.49.1.
  See Config Connector Overview for more details [https://cloud.google.com/config-connector/docs/overview](https://cloud.google.com/config-connector/docs/overview).

### Database Migration

* Added `MYSQL_8_0`, `POSTGRES_10`, `POSTGRES_12`, and `POSTGRES_13` database version options for `--database-version` flag to `database-migration connection-profiles create cloudsql`.

### Kubernetes Engine

* Promoted `--enable-dataplane-v2` to GA.

### Notebooks

* Added `gcloud notebooks instances rollback` to rollback a notebook's boot disk.
* Added `gcloud notebooks instances get-health` to verify instance health.


Subscribe to these release notes at [https://groups.google.com/forum/#!forum/google-cloud-sdk-announce](https://groups.google.com/forum/#!forum/google-cloud-sdk-announce).

 As always, please let us know of any issues or feedback you may have via our issue tracker: <https://issuetracker.google.com/issues/new?component=187143>. You can also ask for help on Stack Overflow, under the `gcloud` tag, or in the google-c...@googlegroups.com mailing list.