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Will Unity 4 projects be compatible with Unity 5?

Discussion in 'General Discussion' started by Shadowraix, May 29, 2014.

  1. Shadowraix

    Shadowraix

    Joined:
    Sep 29, 2013
    Posts:
    2
    My project is on hold until at least the 4.6 update is out for the GUI system. I'm assuming Unity 5 will have a free version. I'm using the free version of Unity 4.5 right now. If I were to start working on my game more when Unity 4.6 comes out could I simply just import it into Unity 5 and be able to utilize all the new features? Or will I need to start a whole new project because of compatibility issues?
     
    Shadowraix, May 29, 2014
    #1

  2. superpig

    superpig

    Drink more water! Unity Technologies

    Joined:
    Jan 16, 2011
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    Yes, Unity 4 projects will be upgradable into Unity 5 projects.

    As usual, you should be sure to make a backup prior to upgrading, and Unity 5 may include breaking changes such that you'll need to alter some aspects of your project before they run 'normally.' Should be much less work than starting over from scratch, though.
     
    superpig, May 29, 2014
    #2

  3. SmellyDogs

    SmellyDogs

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    Jul 16, 2013
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    387
    According to the Unity Moderator large portions of the API is being deprecated. Anything with a yellow check beside it should not be used.
     
    SmellyDogs, May 29, 2014
    #3

  4. hippocoder

    hippocoder

    Digital Ape Moderator

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    Depreciated functions probably will get depreciated, so if it's yellow and it's warning you, then that's merely just something you can change right now in preparation :)
     
    hippocoder, May 29, 2014
    #4

  5. JasonBricco

    JasonBricco

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    Which yellow check are you referring to?
     
    JasonBricco, May 29, 2014
    #5

  6. Shadowraix

    Shadowraix

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    Thanks for the information. I'll make sure to keep up with the changes and such so that everything will be functional in Unity 5. Now I can begin work when 4.6 is released.
     
    Shadowraix, May 29, 2014
    #6

  7. Schubkraft

    Schubkraft

    Unity Technologies

    Joined:
    Dec 3, 2012
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    1,067
    Just to make sure: we'll break some backwards compatibility with the new PhysX and probably some other things. There will be some automated conversion being offered but there might be things on your project where you need to change things by hand to make it work with the new version.
    But it should all be reasonable and the release notes will feature some upgrade hints as usual.
     
    Schubkraft, May 30, 2014
    #7

  8. Meltdown

    Meltdown

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    Oct 13, 2010
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    I upgraded my monster truck project (About 2GB) fine to 5, the only issues I saw was some really weird stuff with the WheelColliders and PhysX.

    Also CombineChildren script doesn't seem to work anymore :(
    But I didn't really have a good look at why yet or if it can be fixed.

    But other than that, it seems like it will be a pretty smooth upgrade for most.
     
    Meltdown, May 31, 2014
    #8

  9. landon912

    landon912

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    Nov 8, 2011
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    da fuq. A Unity 5.0 build is out in alpha already?
     
    landon912, May 31, 2014
    #9

  10. hippocoder

    hippocoder

    Digital Ape Moderator

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    Yes. But nobody testing Unity 5 should be mentioning 5 at all unless Unity staff or it's public info Unity's already released.

    Move on, these aren't the droids you're looking for.


    You'll know it if it affects you with bright yellow console logs :p
     
    hippocoder, May 31, 2014
    #10
    landon912 likes this.

  11. JasonBricco

    JasonBricco

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    Ah, I thought it was something with the docs. Thanks for clarifying.
     
    JasonBricco, May 31, 2014
    #11

  12. Cogent

    Cogent

    Joined:
    May 14, 2013
    Posts:
    356
    " Will Unity 4 projects be compatible with Unity 5?"


    Yes.

    Unity 5 Backwards Compatibility Importer
    + $1,500 or + $75/month


    :evil:
     
    Cogent, May 31, 2014
    #12

  13. Kaji-Atsushi

    Kaji-Atsushi

    Joined:
    Oct 6, 2012
    Posts:
    234
    Huh, What?

    Anywho, everyone who is worried about backwards compatibility should create several backups of their project and should probably the new Unity as a NEW application rather then overwriting and updating the old version you're used too.

    That way if anything starts to make you cry, you can always go back to home.
     
    Kaji-Atsushi, May 31, 2014
    #13
    Unicornaphobist and dval like this.