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As Jolla is a mobile device, available Internet bandwidth might be sometimes severely limited (2G, data cap reached, etc.), preventing the download of bigger updates.

What is delta-RPM/presto ?

In short, it makes it possible to download only the the diff from the last package version and creating the updated package on-device by applying the diff on the old package.

Advantages

• should save a lot of bandwidth
• makes updates over mobile data connection more feasible

Potential disadvantages

• packages will need to be stored, so that the diff can be applied to them
• some processing needs to be done to apply the diff

Is this already used elsewhere?

The Fedora Linux distribution has been using delta-RPM/Presto by default since version 11, so for about 4-5 years already.

As Jolla is a mobile device, available Internet bandwidth might be sometimes severely limited (2G, data cap reached, etc.), preventing the download of bigger updates.

What is delta-RPM/presto ?

In short, it makes it possible to download only the the diff from the last package version and creating the updated package on-device by applying the diff on the old package.

Advantages

• should save a lot of bandwidth
• makes updates over mobile data connection more feasible

Potential disadvantages

• packages will need to be stored, so that the diff can be applied to them
• some processing needs to be done to apply the diff

Is this already used elsewhere?

The Fedora Linux distribution has been using delta-RPM/Presto by default since version 11, so for about 4-5 years already.

As Jolla is a mobile device, available Internet bandwidth might be sometimes severely limited (2G, data cap reached, etc.), preventing the download of bigger updates.

What is delta-RPM/presto ?

In short, it makes it possible to download only the the diff from the last package version and creating the updated package on-device by applying the diff on the old package.

Advantages

• should save a lot of bandwidth
• makes updates over mobile data connection more feasible

Potential disadvantages

• packages will need to be stored, so that the diff can be applied to them
• some processing needs to be done to apply the diff

Is this already used elsewhere?

The Fedora Linux distribution has been using delta-RPM/Presto by default since version 11, so for about 4-5 years already.