1# Upgrade
2
3In order to use a later version of `bbl` against an older
4`bbl` environment/state directory, you will need to run
5`bbl plan` before running `bbl up`.
6
7`bbl plan` just writes the latest files and state directory structure.
8
9`bbl up` is the applier. It will run `terraform apply`,
10`bosh create-env`, and `bosh update-cloud-config`.
11
12### Example
13
14```
15bbl5 up --lb-type cf --lb-cert cert --lb-key key --lb-domain domain.com
16
17# some time passes
18
19bbl6 plan --lb-type cf --lb-cert cert --lb-key key --lb-domain domain.com
20bbl6 up
21
22bbl6 destroy
23```
24