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For some reason, Unity has made a habit of releasing new versions that do not work well as the last version, and instead of fixing that version properly, they just release a newer version (which works even worse).
#Download unity 5.5 Patch
Also, the patches include the full Unity Editor installation (not just the small patch to be applied to the Editor, like most software companies do), which means you have to have ample hard drive space for these gigabytes and gigabytes of patches, editors, packages and assets for that specific Unity version. MattSydney made a good point about Unity releasing buggy versions and the frequent patching. It uploads a tiny test project at the rate of 1% per hour. I tried to send a Bug Report but the Bug Reporter included with 5.6.5 seems to be broken too. I tried to get support but I guess Unity 5 is not a priority. PS, To Unity staff: I know you guys are busy, and you have built an amazing and versatile engine, so I appreciate your hard work. I am an experienced programmer and have tried to get 5.6.5 working for two days, with no success.
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#Download unity 5.5 update
Nothing on my computer has been changed except the update from 5.5.4 to 5.6.5, so I know it's Unity not my computer. However, since switching to Unity 5+, my dynamic shadows have never worked the same, and with most Unity 5 versions I've tried they don't work at all. Dynamic shadows worked great, my Unity never crashed once, and errors were minimal. I updated to Unity 4, a couple of minor things no longer worked the same way, but everything else worked great. For example, I started out with Unity 3, and everything worked great. I tried to send a Bug Report but it took too long, but version 5 might not be a top priority anyways. I am going to switch back to 5.5.4 (or lower). There's a lot more problems and issues also. Some DLL's are just throwing exceptions now. One major issue is that Unity crashes every time any Standard Assets are imported. I was using 5.5.4f1, and most of the projects, assets, scripts and assemblies that worked perfectly with 5.5.4 no longer work with 5.6.5. I updated to 5.8 (the last available Unity Editor for 32-bit systems), and have had nothing but problems with it. Here's a recent 2018 update (the year 2018, not the Unity version).
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