What's the difference between a Long Term Support Release and a Normal Release?


What are the differences between an Ubuntu Long Term Support release (LTS) and a normal release?

There is a new release every 6 months (in April and October), with the version number being year.month (e.g.: 16.04 was released in April 2016). Every two years, the April release is a Long Term Support version.

All normal releases (13.04 and later) are only supported for 9 months.

All LTS releases (12.04 and later) are supported for five years on both the desktop and the server.
Older versions had slightly different support cycles, but they haven't been included as they're all unsupported now. See the Ubuntu Wiki for historical information.

Now, support means:

Updates for potential security problems and bugs (not new versions of software)

Availability of Commercial support contracts from Canonical

Support by Landscape, Canonical's enterprise oriented server management tool set

The Desktop refers to the packages that are...

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The most important thing (for most people) is how long you get to use an install without having to do a release upgrade. A non-LTS version of Ubuntu only gets updates for 9 months from its release so to stay up-to-date —which is critically important— you need to upgrade twice a year; you need to upgrade through every Ubuntu version…

Conversely an Ubuntu LTS release is supported for 5 years and you can upgrade directly from LTS to LTS. This gives you long-lived, solid base to target and test on that makes it super-easy to release-upgrade when you decide to. It's therefore ideal for mass deployment, high-availability systems, and just people who don't like doing release-upgrades.

In the last two LTS versions, point-updates have also been made available to support newer hardware (it's a kernel, driver and X stack), which boosts the utility of the LTS versions over their lifespan. The original stacks are maintained too.

Most other applications won't jump versions,...

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In the Linux World, LTS and similar terms mean that the distribution stays stable. That means: You will not get any major functional upgrades (at least none that break compatibility in any way), but you will get security enhancements. One example of this is Red Hat Enterprise Server or Cent OS, which only had PHP 5.1 and were not upgraded to 5.2, yet all 5.2 security upgrades were backported.

Think of it like this: If you are writing a custom piece of Software (say, a very special Apache module) today and the companies guarantees 5 year support, that means that you can be very sure that your custom software still runs in 5 years because all of the interfaces and structures will remain the same.

In the Windows World, this is not as strict but similar. Microsoft supported Windows NT 4 for 10 Years, up to middle or end of 2006. It was long obsolete by then, having been succeeded by both Windows 2000 and XP/2003, but because companies did either not want to migrate yet or...

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This is a discussion on Using Ubuntu on a ssd? within the Linux Support forums, part of the Tech Support Forum category. Are there any kind of precautions or operations should be performed to use Ubuntu 15.10 on a ssd? Like something

you already got a good answer for your questions but just wanted to add, IMO, there is no difference in security for either a rolling update or LTS releases. As long as you keep updated you should have no security issues. see the following

What's the difference between a Long Term Support Release and a Normal Release? - Ask Ubuntu


the truth is a three edged sword - your truth, my truth and the real truth.

nine months is because there is generally a new version every six months. You have to upgrade to stay secure after nine months. the LTS is for those who do not want to upgrade so often for whatever reason but stay secure.


the truth is a...

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I read with interest the letter "In this period of ‘longest freeze,’ global warming has disappeared" (Jan. 9) from Richard E. Browning. Unfortunately, he misses the entire point when it comes to global warming.

The recent cold snap was a temporary effect and also not record cold. Day-by-day variations in temperature are what you might call weather. We had a warm snap this past fall.

Global warning refers to long-term change. For example, 2017 is probably the second warmest year on record. Many of the last 10 years have been among the warmest on record.

Ocean water temperatures are increasing. This gives rise to stronger storms. Some fish may have trouble adjusting to this temperature change. We may have to rename Glacier National Park in Montana since the glaciers are melting. Glaciers in Norway, Sweden and Denmark are shrinking. Massive chunks of ice are falling into the ocean in the Arctic. Growing seasons are being altered by warming effects.


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More commonly:

Alpha: Usually the first normally interact-able thing out (private or public use is irrelevant).

If you are building something thats supposed to have a GUI - alpha is where you can rudimentary use the software to some degree of what the consumer is supposed to use. For games its where the core module/mechanic is somewhat usable. I've seen some coders call it alpha on a rudimentary basis that can be used only via command line or scripts - but most people refrain from doing so.

Beta: Most of it is working - all intended features may not be deployed yet - but its still breaking or at least bugging out often.

Over the years the beta "label" has been used as a prolonged excuse for broken games or lack of adequate support.

Not that the other way around is much more preferable. Many projects have been shipped off as complete when they were by all rights still beta. In the context of games - having easily detectable game breaking bugs has...

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Release of offenders

Q. What is a Warrant Expiry Date?
A Warrant Expiry Date (WED) is the date the criminal sentence officially ends, as imposed by the courts at the time of sentencing.

Offenders who reach their WED after completing their entire sentence are no longer under the jurisdiction of Correctional Service Canada (CSC). Neither CSC nor the Parole Board of Canada (PBC) can lengthen or shorten a court sentence.

Q. Where are offenders released? Where will they live?
CSC makes every effort to determine where an offender will reside and, in virtually all cases, knows the offender's destination.

In cases where the CSC does not have that information, an information package on the offender is forwarded to the district office where the offender was convicted as well as where the offender was incarcerated in order for it to be transmitted to the police jurisdiction of that area.

Q. When are offenders released once they reach WED?...

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Time Release Technology

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) pills are tablets or capsules formulated to dissolve slowly and release a drug over time. The advantages of sustained-release tablets or capsules are that they can often be taken less frequently than instant-release formulations of the same drug, and that they keep steadier levels of the drug in the bloodstream. The first Sustained release tablets were made by Howard Press, in Hoboken, NJ in the early 50's and the first tablets relased under his process patent were called "Nitroglyn" and made under license by Key Corp., in Florida. Today most are formulated so that the active ingredient is embedded in a matrix of insoluble substance (various: some acrylics, even chitin, these are often patented) so that...

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Software QA/Testing Technical FAQs

(Continued from previous question...)

What is the difference between build and release?

Builds and releases are similar, because both builds and releases are end products of software development processes. Builds and releases are similar, because both builds and releases help developers and QA teams to deliver reliable software.
A build is a version of a software; typically one that is still in testing. A version number is usually given to a released product, but sometimes a build number is used instead.
Difference number one: "Build" refers to software that is still in testing, but "release" refers to software that is usually no longer in testing.
Difference number two: "Builds" occur more frequently; "releases" occur less frequently.
Difference number three: "Versions" are based on "builds", and not vice versa. Builds (or a series of builds) are generated first, as often as one build per...

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ER and PR are same.....They are most used interchangeably with word "SR-Sustained Release" by some Authors...

These all are type of Controlled Release (CR) formulations..

#Controlled Release-It controls "site" as well as "rate" of drug release.

1) ER=PR=SR:- This all are meant to maintain drug concentration withing the therapeutic window for maximum or desirable period of time.

2) Pulsatile Release: is another type of Controlled release formulation.

(1) and (2) controls only rate of release so they are collectively some time called as "Modified Release" formulations.

3) Delay Release-(ex: Enteric Coated OR colon targeted tablet) is also a Controlled Release formulation but it only controls only site.

Floating Tablet is (as per my knowledge) best example of CR as it target site (stomach) and also controls rate of drug release.

However, some times by some authors, CR , ER, PR, & SR are used interchangeably for the same purpose,...

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Islam vs Buddhism

When it comes to some of the major religions in the world, a lot of people are skeptical, or even fearful of something that they do not know a lot about. Here, we will try to do away with some of the most common misconceptions regarding the two most common religions in the world: Islam and Buddhism.

First, let’s take a look at what Islam, as a religion, is all about. It’s based on the religious book Qur’an, and the literal meaning of the name is ‘submission to God’. A Muslim, therefore, is someone who submits himself to God.

Based on the teachings of Islam as a religion, there are five duties which Muslims must practice within the community ‘“ and this is what Islamic Law revolves around. Islam is a dominant religion in the Middle East, some parts of Asia, and North Africa. Indonesia is the largest Muslim country in the world, with about 13% of the population practicing the Islam religion. Arab countries and those in the Indian sub-continent...

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Physicist: The short answer is: A worm hole is a “tube made of spacetime” that connects two different regions. If it’s set up right, you could enter one side of the tube and exit the other end somewhere else, or even somewhen else. In contrast, a black hole destroys the hell out of things, and doesn’t “go anywhere”.

A worm hole is a funnel (what’s shown here is only a two dimensional funnel) that tapers down to a “throat” (which although thinner never pinches off entirely) which connects to another funnel that opens up somewhere else. A black hole is a funnel that pinches off at a singularity. A traversable worm hole needs to be large and “mellow” enough that it doesn’t have an event horizon (a black hole’s “point of no return”), or any fatal tidal forces.

The hand-wavy idea behind worm holes (left) vs. black holes (right).

There’s a long history of the two being mixed up. For example, there are a number of stunningly bad movies that make the connection between...

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