In functions of course. I read the full changelogs, I read changes in each branch, but I dunno what functionality will be lost (for example) when switching to long-term from stable.
Is such switch completely safe, or it needs further investigations?
Maybe there is a diff of release trees hidden somewhere in wiki / documentation?
Long-term releases are bugfix versions which means they work completely bug free. Stable releases are the current release that is out of RouterOS but still may contain bugs.
long term contains bugs too 
… I think of stable as good enough for general public (out of beta).
Stable is the current version of ROS that is good enough to use, with new features and older bugs corrected (there’re new ones)
Long term should be a version mostly bug free, with new features added later “without” bugs and bug correction.
Hey, completely not what I asked. I did not ask “what is teh meaning of the [long-term] word combination”.
I asked what are major differences in functionality between two release trees. They must have different feature lists – that’s the idea of such branching.
Long term should be a version mostly bug free, > with new features > added later >
Exactly this.
p.s.
Long-term releases are bugfix versions. Stable releases are the current release.
So that’s who you are, Captain Obvious! 
So If I need differences, I need to compare 6.42 (6.42.10) and 6.43 (6.43.7) versions?
Because some changes are applied both to stable and long term (6.42.10 and 6.43.7 has some common updates for example).
Also I cannot say that stable release become long-term, because of version numbers:
So, let’s look on 6.40 long-term versions.
Long-term release tree
Release 6.42.10 2018-11-20
Release 6.42.9 2018-10-01
Release 6.40.9 2018-08-22
Release 6.40.8 2018-04-24
Release 6.40.7 2018-04-20
Release 6.40.6 2018-03-01
Now stable for the same period of time.
Stable release tree
Release 6.43.7 2018-12-03
Release 6.43.6 2018-12-03
Release 6.43.5 2018-12-03
Release 6.43.4 2018-10-18
Release 6.43.3 2018-10-18
Release 6.43.2 2018-09-20
Release 6.43.1 2018-09-18
Release 6.43 2018-09-10
Release 6.42.7 2018-08-20
Release 6.42.6 2018-07-12
Release 6.42.5 2018-06-27
Release 6.42.4 2018-06-19
Release 6.42.3 2018-05-25
Release 6.42.2 2018-05-17
Release 6.42.1 2018-04-23
Release 6.42 2018-04-20
Release 6.41.4 2018-04-09
Release 6.41.3 2018-03-12
Release 6.41.2 2018-02-27
Release 6.41.1 2018-02-02
Release 6.41 2017-12-22
Release 6.40.5 2017-11-07
No match at all for the last year. So. what exactly to compare? I see bugfixes in both trees, But I cant see differences in new-feature lists.
Okay, 6.40 to 6.40.1 there was new bridge implementation.
6.42.9 long-term has the same updates, that appears in stable releases 6.43.1, 6.43.4, 6.43, in custom order (just opened all changelogs and searched by strings). So the wording in wiki is wrong. See:
Released rarely, and includes only the most important fixes, upgrades > within one number branch > not add new features.
But wee see 6.43 updates in 6.42 branch. Looks like long-term is sort of cumulative version of current stable tree. Thats why, again, it’s hard to find differences in versions. Because even comparing changelogs line by line does not give the whole picture.
Compare changelogs for both trees.
Hi !
I have a RBwAPG-60ad Wireless wire link that came pre-configured. https://mikrotik.com/product/wireless_wire
I make updates via Winbox with “check for updates”
I want you to know if I loose the configuration and the link goes down I do not know to to configure it.
Currently I have 6.47.8 Stable and I want ro know if I can change to 6.46.8 Long term directly from Winbox without loose my configuration.
It is safe ?
it is a good ideea ? Or should I remain on Stable?
Why? Really…why?
You can export to a configuration file that will contain near all configuration (users are missing if applicable).
Is it safe to downgrade? Yes
Is it a good idea? Depends
Should you remain on Stable? Yes (unless you have a good reason not to)