Ubuntu 22.04.5 LTS has been released, which as always applies to the flavors which include Lubuntu.
As noted in the announcement link I used, the point release is
As usual, this point release includes many updates and updated installation media has been provided so that fewer updates will need to be downloaded after installation. These include security updates and corrections for other high-severity bugs, with a focus on maintaining stability and compatibility with Ubuntu 22.04 LTS.
ie. this isn’t a new product, but a re-spin of the Lubuntu 22.04 LTS media with all updates already applied, and includes the HWE kernel; meaning this media contains the 6.8 kernel from Ubuntu 24.04 LTS (prior released media included older kernel stacks from earlier releases).
For details of what is included in 22.04.5 media; I’ll refer you to Jammy Jellyfish Point-Release Changes - #8 by paride - Release - Ubuntu Community Hub
FYI: This is the last scheduled media release for jammy or 22.04