# Tier CLI v0.5.2

We just [released v0.5.2](https://github.com/tierrun/tier), with some exciting new enhancements and features.

- **Switch preallocations**: The `tier switch -c` command now preallocates switch accounts which means after the first switch account is created, subsequent uses of `tier switch -c` should be noticeably faster, like, complete in 10us fast! This is because it can now avoid waiting on slow API calls to Stripe.

![Screenshot 2022-11-22 at 9.22.50 PM.png](https://cdn.hashnode.com/res/hashnode/image/upload/v1669166841281/-hh3FSdDl.png align="center")

- **Plan immutability**: Plans are now 100% immutable, as was originally planned. To upgrade all existing Tier plans to be 100% immutable, please run `tier pull | tier push` - 2 times; The second should produce output saying `[plan already exists]`, which is your confirmation the migration was successful.

- **Deep links**: Push now outputs deep links to the corresponding prices in Stripe.

- **Clean command**:  We added the `tier clean -switchaccounts` command. As you might guess, it cleans up accounts in Test Mode that were created by the switch command. The full command takes a duration of time for specifying the maximum age to use when considering an account for removal. Please see `tier clean -h` for more information.

Please head over to [https://tier.run/releases](https://tier.run/releases) to check out more changes and install options. As always, `brew upgrade tierrun/tap/tier` works too!