# 4.21 is out, deprecates Liquibase.update()

**URL:** <https://forum.liquibase.org/t/4-21-is-out-deprecates-liquibase-update/8073>\
**Category:** Uncategorized\
**Created:** [April 14, 2023, 10:16am UTC](https://forum.liquibase.org/t/4-21-is-out-deprecates-liquibase-update/8073 "2023-04-14T10:16:00Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![eekboom](https://avatars.discourse-cdn.com/v4/letter/e/35a633/32.png) [@eekboom](https://forum.liquibase.org/u/eekboom)\
**Post date:** [April 14, 2023, 10:16am UTC](https://forum.liquibase.org/t/4-21-is-out-deprecates-liquibase-update/8073/1 "2023-04-14T10:16:00Z")

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4.21 seems to be out, but there are no release notes, yet. Could you please add them?

I am using liquibase embedded in a Kotlin application, as described in section " Embed Liquibase into your product" here: [3 Ways to Run Liquibase](https://www.liquibase.com/blog/3-ways-to-run-liquibase)

My gradle update check task alerted me of the new version, and I tried to update because it warns that 4.20 has a security flaw in one the dependencies [CVE-2022-1471].

However, after the update my build fails with a deprecated warning at Liquibase.update().  
At the update() method I use, there is just a `@Deprecated` annotation with no hint at all what to use instead.  
When follow the trail in the liquibase sources to the overloaded method that all the update variants delegate to, I find `@deprecated Use CommandStep`

Not that helpful ☹

Oh, I just noticed that there are new `update()` overloads which are not deprecated, all taking a `Writer` … and no such method has any JavaDoc ☹

What is this `Writer`? Is it used for logging? If so, how would I get a `Writer` from log4j2 or slf4j?

Finally, could you please update the [3 Ways to Run Liquibase](https://www.liquibase.com/blog/3-ways-to-run-liquibase) to use a non-deprecated `update` method?