While I was just reading through the Xenial Xerus Release Schedule, I saw the next point release, being 16.04.4 LTS on February 15th, 2018. I was waiting 4 days for it.

Xenial Xerus Release Schedule | 16.04.4 LTS - Point Release | February 15th, 2018

On the release date, I forgot to turn on my Ubuntu system, so I checked today on Ubuntu Wiki/Releases. Guess what I found; 16.04.3 LTS!

Does anybody know where is the 16.04.4 point release?

  • My 16.04 systems got the release number bumped to 16.04.4 last week. Feb 25, 2018 at 15:04

2 Answers 2


It was delayed due to the Meltdown and Spectre security issues. This took up a lot of everybody's time while things were patched and tested. There are still patches coming out for various CPUs. It's a complicated issue and the fixes are far from ideal.

Anyway, the new release date was recently announced as the 1st of March 2018.

  • Thank you for informing me! I was thinking that maybe Canonical just forgot or something for 16.04.4.
    – na-no.
    Feb 18, 2018 at 13:34
  • They can delay it to April as far as I care as long as the bugs we witnessed this year are worked out first. Feb 18, 2018 at 14:45

See https://lists.ubuntu.com/archives/ubuntu-release/2018-February/004287.html

From there:

As announced previously the release of the 16.04.4 point release has been delayed. Seeing that things are now settling in, we have set the 1st of March as the new planned date release date. We expect to have all the required pieces available in the archive by that time and will provide images with all the necessary security fixes in place.

On behalf of the Ubuntu Release Team,

Łukasz 'sil2100' Zemczak
Foundations Team


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