Backporting is the process of taking components of a newer version of a software program and porting them to an older version. It is part of software development maintenance. It is commonly done to fix security issues in older versions of an application and add new features to older program versions.

You can compare backporting to upgrading your computer storage, that is, if your system has a slot to put the memory card into or its processor can handle the additional memory. That action makes your computer faster and more efficient.

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What is backporting? Based on its definition, backporting is sometimes necessary if users can’t employ the newer version of the software that is critical to their business operations because it still has bugs. They can backport features available in the more recent version to their existing program as an alternative to buying. That way, they enjoy the stability of the older version with the additional features from the newer version.

How Does Backporting Work?

Backporting can be simple or complex. In some cases, a program can undergo backporting by updating a few lines of code. In others, the software may require a significant overhaul in that it undergoes changes across multiple files of code.

Note that if the software requires complex backporting, upgrading to its latest version may be more practical. As we said earlier, though, some organizations may need to retain legacy applications and just apply backporting no matter how complex if their newer versions still have stability issues that may adversely affect mission-critical operations.

What Are the Steps in the Backporting Process?

The backporting process involves six steps, namely:

  1. Identifying a security flaw in the software version that needs a patch or an update
  2. Determining what patches, updates, or changes are available to address the issue in the newer version of the same program
  3. Adapting the changes, so they’re compatible with the older software version’s code
  4. Conducting robust testing to ensure the backported code or package remains fully functional and fixes the problem when integrated into the older application
  5. Addressing unwanted side effects identified in the tests
  6. Deploying the backported patch, upgrade, or change

What Is an Example of Backporting?

A famous example of software that is frequently backported is Windows XP. Many features of Windows Vista were backported for inclusion in Windows XP Service Pack 3. That move made many games that required Windows Vista work on Windows XP Service Pack 3. Users who couldn’t afford to upgrade to Windows Vista could thus continue playing their favorite games without spending a dime.

What Are the Advantages of Backporting?

Backporting can save users money they would otherwise spend on software upgrades, which can cost a lot, especially if the program needs to be installed on several computers. It also lets users enjoy the older version’s stability while reaping the benefits of the newer version’s features, including bug fixes.

Does Backporting Have Disadvantages?

Like any form of code modification, backporting does have some side effects, including:

  • Long-term support and maintenance costs: While backporting can effectively address security flaws and vulnerabilities in older software versions, each change makes the program’s code more complex, which can be expensive to maintain.
  • Additional security implications and vulnerabilities: Backporting relies on legacy codebases that could introduce other potentially significant security implications for users. Old or legacy code can cause weaknesses in your environment that affect all dependent applications.
  • Numeration confusion: Backporting can give users a false sense of security if they don’t fully understand that their software would now need patches or fixes for both the newer and older versions. If they don’t, only the weaknesses or vulnerabilities in one version may get fixed, while those in the other version remain.

While backporting is sometimes necessary, users should always ensure the upgrades and fixes they apply to older software versions won’t cause them to work erroneously. The older and newer versions’ code should be compatible with each other. The changes made to the existing software should also be compatible with all the connected systems and applications. Otherwise, the backported program will cause problems.