Regarding JHF releases. My experience is this is how it usually works when new versions get released:
Top priority: Pushing fixes to the current widely recommended version.
Second priority: Pushing fixes to the latest version.
Third priority: Backport needed fixes to older, still supported versions.
If you look at the change log from JHF released this year, you will typically locate a specific fix being released for R81.10 first, which makes sense. R81.20 has been in a strange spot as it has received few JHF during its 8-month lifespan as a GA release. Not sure why that is. I suppose, if Check Point gets metrics about very few customers upgrading to R81.20, they prioritise accordingly, which might explain why R81.10, R81 and R80.40 seem to have had a higher priority in terms of JHF this year.
I expect this to change, as R81.20 is now being pushed as the widely recommended version. It's, of course, hard to make 1:1 comparisons between change logs when looking between versions, as there is new functionality with each new version that doesn't exist in older versions etc. So there might be differences to the list as some fixes are irrelevant for a newer (or older) release. But for the most part, JHF released for R81.10, R81, and R80.40 has been pretty similar. And normally, you will see fixes pushed as on-going for R81.10 first, then R81 shortly after, and then R80.40.
I've had mixed results with R81.20 on regular HA-clusters, Maestro and VSX. I have ended up reverting to R81.10 on all installations. None of this was running R81.20 Take 24, so I can't say much about the version being pushed as widely recommended. But the changelog from Take 14 to Take 24 isn't extensive. But I believe in Check Point when they mark it as recommended. And as the recommended release, it will be in great hands regarding support moving forward. This has been one of the stranger things when running into issues with R81.20 early on, as the JHF were so few and far between, so it felt like things didn't move forward in any meaningful way. Thus we ended up reverting to R81.10 in most scenarios.
And as usual, just because R81.20 is widely recommended doesn't mean you need to upgrade a perfectly working R81.10 installation unless there is something specific from R81.20 you want. It just means that if you have something from R81.20 you want, you should feel assured and safer about the upgrade now compared to before. And if you are about to deploy anything new, there is no obvious reason not to deploy it on R81.20 over R81.10.
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