OmniROM gets a delta-updates thanks to Chainfire’s OpenDelta system



I mentioned quite some time back that I’m sick and tired of putting ROMs on my device, and that I’m going to stick to Google and let them take care of me completely by buying only Nexus. The greatest benefit of the transition that I see is the simplicity and comfort of getting the updates that I want.

For those who do like to install custom ROMs, the process has never been the greatest. Personally, as someone who lives in a part of the World where the internet speeds aren’t the greatest and even broadband ISPs put a cap on your download limit, repeatedly updating to the latest version of what I was running wasn’t something I made sure to do religiously.

However, if you are on Omni ROM, we’ve got some good news for you. In a blog post, the Omni team have stated that they will now be using Chainfire’s OpenDelta system to provide updates for nightly builds. This means that instead of repeatedly downloading 100+ MBs, you would now be looking at much smaller “.delta” packets via an Android client (with support to chain multiple delta updates, in case you missed a few in a row). You can also set the Android client to automatically download the updates based on your preferences.


Raveesh Bhalla

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  1. Glad to see this it will mean no reflashing roms constantly just to get a few updates. Some linux distros have been taking this route for years already and I am glad to say that my main distro PCLinuxOS is one of them unlike Ubuntu which requires that you reinstall the OS every couple of years if you want the latest and greatest.Its one reason I don’t use Ubuntu another is Unity to be honest. My main UI was Gnome 2 but since its currently uttering its death cries I have moved over to Mate. KDE was never my thing either.

  2. CyanDelta does the same thing for CyanogenMod nightlies, and has been around for a looong time, though it’s a 3rd-party app, and not integrated directly into CM’s updater (yet).

    CyanDelta’s literally saved me probably 100+ GeeBees in download xfer over the past year. More important than the bandwidth, though — at least in my case — is the time savings, as it’s faster to download the delta and crunch the binary diff to create the new file than it is to download the whole thing.

  3. I wonder how long it will be until the Android world invents package management (like the Linux distros have been doing for the last 15-20 years)…

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